New Veriable Speed transmission

Discussion in 'General Motoring' started by mike, Oct 21, 2006.

  1. mike

    mike Guest

    I was out trying to look at a new car, and my wife took a liking to the
    Jeep Crossover, with the two-pulley transmission. I am not new to this
    design, as I have been using this type of transmission/clutching in the
    snow machines.
    My concern is that I like simple. This system, unlike the snow
    machines, is using hydraulic components to move the second pulley.

    Has anyone had any experience with this type of drive on a larger
    vehicle?

    I would rather purchase the manual transmission, as it is a reasonably
    tried and tested design.

    Anyone have any input on these (good/Bad)?

    Thank you,
    Mike
    mlawrenc(at)gmail.com
     
    mike, Oct 21, 2006
    #1
  2. mike

    Matt Ion Guest

    Various cars have used these over the years as well - at least one early Civic
    had CV (continuously variable) drive.
     
    Matt Ion, Oct 21, 2006
    #2
  3. mike

    Bill Putney Guest

    And Subaru.

    Bill Putney
    (To reply by e-mail, replace the last letter of the alphabet in my
    address with the letter 'x')
     
    Bill Putney, Oct 22, 2006
    #3
  4. mike

    DeserTBoB Guest

    No Honda Civic ever had a CVT.
     
    DeserTBoB, Oct 22, 2006
    #4
  5. Get the manual. Repair costs over the life of the car will be lower and
    the resale value when the car is older will be higher.

    Ted
     
    Ted Mittelstaedt, Oct 22, 2006
    #5
  6. One of the reasons Volvo bought Dutch car maker DAF (gosh, was it the
    late 60s, or 70s) was to control DAF's patents on the CVT they had been
    using with success for some years......DAFs were small, light cars and
    in those days not many Euroboxes were available with automatic. If I
    remember, the DAF used centrifugal variable rate pulleys with rubber
    belts. With the low weight and power, the belts had a respectable life
    of 40,000 miles or some such between replacements.

    DAFs were rebadged as little Volvos, but don't think any were sent to
    the US. Assume that Volvo continued development of the concept and that
    is what is available in the Ford 500 since it is Volvo-based.

    Have never heard of any problems with modern units, although I can
    certainly remember the uneasy feeling of driving in early 60s Buicks
    with Super Turbine Drive.......waiting for them to shift (course, they
    never did). Guess you get used to it quick enough.

    Don't confuse Honda's CVCC Civic with CVT (wasn't it Compound Vortex
    Combustion Chamber or similar).

    Re: early Euro automatics: Jos Lucas (The Prince of Darkness) had a
    magnetic transmission: somehow it shifted by applying electric current
    to different points in a tranny filled with some kind of ferrous powder
    which solidified when the juice was applied .....geees, does't that
    sound like a British idea? I think the first successful automatic sold
    in great numbers in Europe was the Warner Gear (Jaguar and many others)
    which oddly enough was developed for and with Studebaker. Didn't
    Citroen (sp?) have something called Citromatic. Hope DAF didn't called
    their's DAFamatic......that would be right up there with Dodge
    Gyromatic.

    Yeah - a boring Sunday morning with nothing better to do!
     
    Itsfrom Click, Oct 22, 2006
    #6
  7. mike

    DeserTBoB Guest

    GM had prototype CVTs in the 1930s, but didn't want to waste any more
    R&D money after their successful launch of the four speed HydraMatic
    in 1938.
    I have seen some DAFs on US soil, mostly back in the '60s. Parts and
    service were impossible, as they were for Saabs in those days. No
    marketing of DAFs in the US ever took place, scared off by a
    then-strong VW.
    The problem with GM's hydrokinetic transmissions, notably from Buick
    Division, was their horrible efficiency. GM didn't think this was a
    problem, and the Buick Division president was quoted, after his 1958
    Buick Super came in dead last in the '58 Mobile Economy Run,
    "Well...we have to keep our friends at the oil companies happy!"

    Several other inefficient hydrokinetic examples from GM filled the
    market, from Allison's bus V-drive bus transmission in 1938 to
    everything from Buick, Chevy's cheaply designed Powerglide and more
    inefficient and unreliable Turboglide, and the Detroit Transmission 2
    speed with "switch pitch" converter, the 275, found in many GM
    intermediates of the 1960s. Odd, since they had the most efficient
    automatic transmission on the market for years with the HydraMatic.
    Even the 1956 Dual Coupling aluminum case version was more efficient
    than any of GM's horrible hydrokinetic models, including the vaunted
    THM 400 and what came later.
    Exactly...which was a patentable name for a stratfied charge engine. I
    still drive one!
    OH yes, it does...and so very typically Lucas!
    Jag used a licensed version of GM's HydraMatic back in the '50s, as
    did Leyland's truck and bus division, for years. The B-W automatic of
    Euro design came a bit later. B-W already was happy with their
    royalties from Ford for their MX (Fordomatic) and, after AMC's
    contract for HydraMatics expired in '57, supplied AMC for all
    automatics until they decided to exit the business, forcing AMC to go
    to Chrysler for Torqueflites.
    Yes...and, being French in design, it was as bad as Packard's
    Ultramatic.
    Those truck badges on early '50s Dodges always looked like "Gynomatic"
    to me, but I was too young to understand the implications.
    Yes, all the Sunday morning political shows are done. Even Robert
    Novak concedes the Republipedoes are OUT!
     
    DeserTBoB, Oct 22, 2006
    #7
  8. mike

    Art Guest

    I believe there were plenty of problems with the Subaru. But that was a
    while ago and hopefully bugs were worked out.
     
    Art, Oct 22, 2006
    #8
  9. mike

    Bret Ludwig Guest

    There is one in Wichita I know of and a early 60s DAF Dafodil here in
    Kansas City.
    It was actually a French idea and was on Renaults. many were imported
    here. Those still in existence tend to be ones converted to electric
    cars. The mag powder clutch was not retained.



    I think the first successful automatic sold
    A shitbox. It's the reason half or more V8 Jag swaps were done.

    Didn't
    Yes, a nightmare.
     
    Bret Ludwig, Oct 22, 2006
    #9
  10. mike

    Dave Gower Guest

    The other significant thing was thatDAFs were Dutch. Holland has virtually
    no hills, which was crucial to the success of these early CVTs, since they
    would soon burn out otherwise.

    I recently test drove a CVT Caliber, and am looking seriously at a CVT
    Compass as a replacement for my Focus. I really liked the CVT on the
    Caliber. Some people say they feel sluggush, but that's just an illusion
    caused by the lack of any shifts. In fact they go like stink because the
    engine gets up on the cam and stays there, pumping out max hp in a steady
    stream.

    Ford is putting them in the 500 and Freestyle, Nissan in the Murano, and
    they're common in Europe.

    Based on my test drive, I think they're the wave of the future if they prove
    reliable, which I think is likely because they're basically very simple. And
    if you look at their cost as an option in the Caliber and Compass, they're
    about the same price as the regular 4-speed Chrysler automatic.
     
    Dave Gower, Oct 22, 2006
    #10
  11. mike

    DeserTBoB Guest

    GM opined that they were superior in the mid 30s. It's just that they
    didn't bother with R&D, preferring to let the Euros do all the work.

    CVTs will replace step gear hydraulic transmission in three years.
    Main reason: cheaper to build.
     
    DeserTBoB, Oct 23, 2006
    #11
  12. mike

    Joe Guest

    I agree - They lack perceived acceleration, but not the real thing.

    I guess everybody knows how they're made. They use a metal chain-like belt
    that can have toothed sides that can hook into teeth on the sides of the
    pulleys. They metal belt doesn't slip (that's not what this is for) but
    rather it is always running on the two pulleys. The pulley adjustment is
    just like you'd imagine from looking at a golf cart. The pulleys are coned
    and the two sides just squeeze in and out. No real change there.
     
    Joe, Oct 23, 2006
    #12
  13. mike

    Some O Guest

    They definitely will take over the automatic market, but they should be
    lower cost than the geared 5/6sp automatics.
     
    Some O, Oct 23, 2006
    #13
  14. mike

    Doug Guest

    Gotta disagree with some of your comments:

    DAF's were marketed inthe USA, at least here in New England. I saw
    several DAF dealers here in Connecticut and the USA headquarters for
    SAAB was in New Haven, CT from their start of U.S. marketing around
    1955 up until around 1995 when SAAB USA moved to Atlanta.

    Perhaps becasue of their local marketing, parts and service for both
    DAF and SAAB were plentiful, at least here in Connecticut. I drove two
    of the 3 cylinder 2 cycle SAABS back in the 60's and 70's - great
    cars, if you didn't mind the lack of engine braking while in free
    wheeling mode. The free-wheeling saved the 2-cycle engine from oil
    starvation under low throttle high torque conditions (decelerating
    down a hill, for example). Just had to throw in one can of SAAB
    premium "M" oil with each 7 to 8 gallons of fuel.

    Two friends of mine had DAF Dafodils - they were fairly reliable cars
    albeit a bit "funky". New England doesn't have much flat land. The
    hills around here didn't seem to destroy those CVT transmissions.
    Periodic belt replacement was all that was necessary.

    I later had two Packards with Ultramatic drive - both were reliable
    transmissions. The 1953 Packard had the original Ultramatic, while my
    1955 Packard had the Twin-Ultramatic. Both were advanced transmissions
    for their day that included, among other features, lock up torque
    converters. Packard was the ONLY U.S. independant automaker to ever
    build its own automatic transmissions.

    The EARLY 1955 Twin-Ultramatics did have main shaft bearing problems
    that wore excessively and destroyed seals. Packard rapidly fixed the
    problem but it did damage their reputation. The 1956 "senior"
    Packards such as the Patricians did have a push buttom servo
    controlled transmission shifter that caused problems but, properly
    speaking, that wasn't due to the transmission.

    I always thought that the Borg-Warner automatics as used by Studebaker
    and American Motors (and in some Jeep products before the Chrysler
    takeover) were bullet proof .

    I owned a 1971 Avanti II (the Studebaker designed sports car) that
    while it had the Corvette LT1 engine installed by the factory, it
    still used the Studebaker Borg-Warner automatic. The engine was tuned
    to 300 HP and I ran the car to 155,000 with NO transmission problems.

    I also had a 1962 Rambler that I later sold to a neighbor. He ran the
    car to 200,000 miles with one engine rebuild and NO rebuilds to the
    Borg-Warner automatic. Rambler called it "Flash-O-Matic" (GRIN).

    Independant transmission shops always bad-mouthed the Borg-Warner
    automatic, in part because they didn't have the knowledge or the skill
    level to do successful rebuilds. They didn't see as many and didn't
    have the training or the tools.

    Doug
     
    Doug, Oct 23, 2006
    #14
  15. mike

    DeserTBoB Guest

    Thus, they were regionally marketed. DAF sales/service were
    non-existant on the West Coast, and Saab was extremely spotty. I do
    remember when the V4s came out, and there was a dealer in LA selling
    them, but again, service and parts were a real bear. Once Saab's
    dealership network started to expand, they sold more V4s. The 2
    strokes, although I do remember them in that era, were very, very
    rare. More common was the drool from the original Subarus, which were
    2 strokes. The "Subes" were heavily marketed on the West Coast
    starting around 1969 as competition for VW's "bug," but VW had come
    out with the new, popular squareback and notchback 1500 Varient
    models, with which Sube couldn't compete.
    They probably migrated westward, were seen for a short time, and
    disappeared.
    The problem with the Ultramatic was that John De Lorean's team
    decided, for some odd reason, that they'd seal up the torque converter
    shell with a bronze sleeve bushing with NO seal and NO oil rifling. As
    mileage would pile up, the bushing would wear, line oil pressure would
    decrease, and the transmission would self-destruct due to lack of lube
    oil. With the straight 8s, this bushing didn't wear all that fast
    because of lower TC temperatures and pressures, but when handling the
    torque of the V8s starting in '55, it became a real nasty problem.

    The first use of a torque converter clutch was in the Allison V-drive
    bus transmission from GM in 1938. I'm convinced that De Lorean got
    his ideas for the Ultramatic from that particular transmission...four
    element torque converter (the bus trans had five), torque conveter
    clutch to direct drive...same stuff in a much smaller package. It was
    the Ultramatic project that made De Lorean attractive to GM, and he
    left Packard before things started to cave in, including all the
    service problems with his Ultramatic.

    There is a shop out here in LA, Reseda Transmission, that knows the
    Ultramatic very well, and he rebuilds them with a proper oil seal on
    the torque converter shell bushing and with slotting on the bushing
    itself to promote better lubrication, and they last well enough.
    Still, they're "slushboxes," and do not get much power to the rear
    wheels, especially at low speeds or heavy loads. What sells a lot
    better for him is a THM700R4 conversion kit he sells to adapt the
    Packard straight 8s and V8s to the moderm GM transmission. He has a
    '56 Patrician so equipped, and the performance AND economy are
    somewhat startling. Driving his Patrician and then driving a 374"
    equipped '56 with the slushbox is the difference between driving a
    Buick GS and a '48 Super with Dynaflow. The Packard V8, while having
    oil pump and a few other teething problems, was a well designed
    package, many parts of which popped up in Chrysler "A" engines later,
    after Chrysler bought the near-new Packard engine plant from
    Studebaker. Stude had already bet their money on their 289 and
    thought the Packard V8 too big to fit their product line, probably not
    a very good decision.
    That was a Ford/Autolite mess that was unwittingly "road tested" by
    Packard for Ford. You'll remember the electric punch button setups
    for the Ford MX transmission in the '57-'58 Mercs and the '58
    Edsels...that was the same basic package, WITHOUT the problem that led
    to many '56 Packards going into park at road speed. For some reason,
    Autolite had designed the serve package so that when battery was
    removed, it went into park, regardless of vehicle motion...a design
    screw-up that cost Packard dearly in its last year.

    The die was already cast, though, as Nance had already negotiated the
    sale of Packard to Studebaker at the end of the '55 model year, when
    it became obvious that Packard didn't have the capital or design
    talent to keep up with their traditional competition, Cadillac. Even
    the very clever "refreshening" of the '51 body by talented stylist
    Dick Teague (the '55-'56 Packards weren't "new" bodies at all...just
    new sheet metal) couldn't save Packard against Harley Earle's P38
    treatment of Cadillac's '48-'56 styling, and the Ultramatic, as well
    as warped oil pump bodies, finished off Packard's reputation for
    quality forever. As if a concession, '56 Cadillacs were also
    "lemons," with some of Cadillac Division's biggest design gaffes of
    all time. Failures on the road of '56 Cads were the stuff of legend,
    as they were on '56 Packards.
    B-Ws were tough boxes. They just didn't evolve much past the early
    '50s control-wise...lack of partial throttle downshift, clunky shift
    "feel," etc. But they were good, solid transmissions that rarely gave
    trouble. AMC's moving to the Torqueflites after B-W exited the
    business in the US was an improvement for AMC, though, and it started
    AMC down the road to acquisition by Chrysler. The AMC/Chrysler merger
    was something Iacocca had wanted from Day 1, but was afraid that
    anti-trust litigation would quash it. His idea later became reality
    after the Reaganites neutered anti-trust enforcement and the FTC. It
    was pretty apparent by '86, though, that AMC would fail like Chrysler
    almost did in the late '70s, so the FTC, after token investigations,
    allowed the merger.
    B-W was also used in Checkers when they had Continental 6s as their
    power, and they were famous for NEVER needing rebuilds, even with
    abusive and harsh taxi cab service and non-existant maintenance.
    Stude called it something else, I cannot recall. Later versions of
    the B-W had a feature later stolen by Ford that allowed 2nd gear
    starts, only important in the North and New England, where ice was a
    continual problem. Ford saw value in this feature and added it into
    their FMX redo of the original B-W designed three band Fordomatic (MX)
    and retained it in the first few years of the C4 and C6 tranmissions,
    later going to 'SelectShift" with a manual selection of 1 or 2 at any
    time...supposedly. Both the C4 and C6 designed borrowed heavily on
    the A-727 and A-904 Torqueflite design, and Ford paid Chrysler
    up-front fees for parts of their design. The orignal, however, was
    and is still better.
    That all changed when the Japs went to B-W for their automatics in the
    '60s. The Toyota 830 is a B-W box built under license, as were the
    Nissans. VW also went to B-W for their automatic transaxles in their
    Varient/1600 series in the late '60s. All had one annoying feature
    common to all B-Ws...bad modulation of the 1-2 shift and indifferent
    part throttle downshifts, but they were very durable.

    B-W autos weren't complicated at all, and were far easier than
    redoing, say, a Dual Coupling HydraMatic or the horrid Chevy
    Turboglide. Twin Turbine Dynaflows were also complex rebuilds that
    commanded high prices. One reason shops didn't like B-Ws is because
    they never saw them very often....they were too durable! Money hungry
    tranny shops loved GM the best, especially in the late '70s and '80s
    during the height of the THM200 scam by GM...a Chevette transmission
    in V6 and V8 powered cars, for which they (again) were sued and lost.
     
    DeserTBoB, Oct 23, 2006
    #15
  16. misc tranny comments.....(please make allowances for the passage of time
    & my memory)

    oddly enough, my first car was a '56 Packard Four Hundred with
    Twin-Ultramatic......car was 10 years old when I got it and the tranny
    was awesome!!!! and, since I was 18 years old, you can believe that I
    beat on it. Eventually, however, it started to leak......had it rebuilt
    by Aamco and it was almost as good as new.....10 years later, only a
    private 1 man shop would work on it and they never got the final "shift"
    (actually engagement of lock-up clutch) right.....and it burned it up
    pretty quick.But considering the "makeshift" nature of mods to the
    original Ultramatic, the weight of the car, and the difference in output
    of the V8 vs S8, it did a good job. Always liked the "double passing
    gears" : first downshift was just the clutch unlocking and torque
    converter going online - adequate for most passing
    situations.......second downshift added low gear and wow, did it fly!

    speaking of weight, I remember that one of the modifications for '56 was
    making the case out of aluminum instead of iron.....which reduced weight
    something like 95 pounds. Geees, what did the thing weigh?

    other: of course, John DeLorean was behind the '56 pushbutton control
    fiasco and other gadgets, but had nothing to do with the original
    Ultramatic of '50.........have some articles somewhere by the principal
    designer, Forest McFarland, in which he says the main problem with the
    V8 application was that the clutch wasn't made larger. and, it is my
    understanding that TU had a much better record in the '56 Golden
    Hawk......although still dealing with the massive power, the car was
    1000 pounds lighter. don't know how it worked in '55 & "56 Hudsons &
    Nashes, but the V8 itself was less troublesome in Hawk & Hahes since it
    didn't have the vacuum booster on the oil pump.)


    Stude automatics: the original '50 "Studebaker Automatic Drive" was
    from the Borg-Warner Warner Gear Division and also featured a lock-up
    torque converter clutch with virtually no durability problems. That
    tranny was used by Stude thru '55. Since Stude production had fallen so
    much (and by all indications, S-P wanted to use more Ultramatics in
    Studes following Packard's purchase of Stude in June 1954) the Warner
    Gear tranny tooling was shipped off and used by Jaguar and others in
    Europe.

    BW then furnished a lighter-duty unit which Stude called Flight-O-Matic
    (Flash-O-Matic at AMC, Fordomatic, Mercomatic at FoMoCo). a decent
    tranny, but not as good as the old Warner Gear version (didn't have the
    lock-up, anti-creep, fewer bands, etc). It was beefed-up for the Avanti
    as "Power Shift" and handled the power well.....also available in AMC
    (forget what they called it). I had '67 & '72 Avantis with it and it
    was acceptable.......although I've never heard an adequate explanation
    of why B-Ws started in 2nd gear. But my '80 Avanti had Turbo-Hydro 400
    and it was much better (but much newer design).

    But perhaps the best engine/tranny/car combination I ever had was a '67
    Checker: Chevy 327 with a Cruise-O-Matic (C6?? it had Drive 1 and
    Drive 2 positions).......a great car!
     
    Itsfrom Click, Oct 24, 2006
    #16
  17. mike

    Dave Gower Guest

    I also wonder if a version stripped of its automatic control circuitry could
    replace conventional manuals. They would have far fewer parts, and be much
    easier to learn to drive (no need to clutch when shifting, for example).
     
    Dave Gower, Oct 24, 2006
    #17
  18. mike

    Bret Ludwig Guest


    The high cost of BW rebuilds is why many Jags were converted to V-8/US
    automatic power. Personally I would rather have a 5 speed manual, which
    people pay stupid sums for kits to put a Toyota five speed behind the
    XK engine. The Toyota five speed is cheaply available and there is no
    reason to pay big money when one can simply have a scattershield-style
    bellhousing made for about $600.

    There is also the "Quarterbreed" conversion which puts a THM350 or
    700R4 behind the XJ engine.


    http://www.johnscars.com/qb/xj6qb.htm

    Which Jaguars are compatible with this conversion?


    XJ6 Quarterbreed kits are for all 68 to 87 XJ6 models (XJ6, XJ6C,
    XJ6L). Kits for XJ12, XJS, Mark I, II, IX or X are available too. No
    kits for ETypes yet. The Jaguar T400 from later V12 engines and the
    German ZF transmission on 1988-on XJ6's (XJ40) will not bolt to a
    pre-88 Jaguar 6-cylinder nor to early V12s equipped with a Borg-Warner.
    There's never been a GM trans behind a Jaguar 6-cylinder until John's
    Cars Quarterbreed.

    Why should I put a GM Transmission in my XJ6?
    The archaic, light duty BW (derived from a 1962 Rambler design) and its
    idiosyncrasies are expelled by a GM Turbo Hydra-matic (THM)
    transmission. Prime benefits of the Quarterbreed conversion:

    * Strong and reliable - Jaguar uses a GM THM in their later V12
    cars, Rolls-Royce has used them since 1969.
    * Quarterbreed cars are quicker - less mass, better gear ratios
    and stall speeds. They also have consistent upshift and downshift
    characteristics.
    * Older Jaguars with a 3.08, 3.31 or 3.54 rear axle ratio really
    benefit from a GM overdrive, relaxing a buzzy 3000 RPM cruising speed
    to a calming 2100+. Lower RPM means better gas mileage and less
    engine wear and tear.
    * Years later - if your Quarterbreed needs tranny service in Bass
    Lake, CA., you can have it repaired for a fraction of the BW price tag,
    not to mention the same day.
    * Faster Starts - the GM flywheel-starter combination creates
    more torque and cranks faster... Plus you'll eliminate the death rattle
    flywheel and the $$$ Lucas (Prince of Darkness) starter.
    * Finally, when your cat finally uses up all 9 lives and it's
    time for a V8 - you will already have the transmission, starter and
    more. I will even allow you $200.00+ for the QB kit leftovers returned
    when you go Chevy V8.

    The Jaguar twin cam 6-cylinder is retained without modification to it
    or the car. The shifter retains its original appearance. Check out
    our Customer Testimonials.

    Which transmission should I use?

    * T350 for 1982 to 1987 Jags (with a 2.88 differential).
    Inexperienced drivers can lug the Jag motor (258 CID) when combined
    with a T700 30% overdrive and a 2.88 rear end.
    * T700 overdrive for pre-1982 cars (with a 3.08, 3.31 or 3.54
    differential) to reduce cruising RPM.
    * T400 is not recommended as it is more involved and not necessary
    for the horsepower/torque of a 4.2L.
    * Don't use a 4L60E or 4L80E on your Quarterbreed.




    John's Cars is the home of halfbreeds - those wonderfully English
    cars with American drivelines. While not everyone loves my V8
    conversions, most loathe the Borg-Warner (BW) automatic transmission.
    Time for another John's Cars exclusive retrofit:
    Jaguar
    Body + Jaguar
    V12 Motor + GM T700
    Overdrive + Jaguar
    Suspension = V12 QUARTERBREED (QB)

    What is the V12 Quarterbreed?
    MORE QB's
    Quarterbreed for XJ6
    Quarterbreed for Marks

    The V12 Quarterbreed is a John's Cars kit that allows you to put a GM
    T700 overdrive transmission behind a Jaguar V12 engine. This kit is
    not compatible with the V12 XKE although it is under consideration.



    This conversion is compatible with all Jaguars in the XJ series that
    have a V12 motor and GM T400 hydramatic. This includes all 1978 to 1996
    XJS and XJS HE and all 1978 to 1992 XJ12 models (XJ12, XJ12L, XJ12C).
    This conversion is compatible with left-hand and right-hand drive cars.

    This kit is not compatible with the V12 XKE although it is under
    consideration. Quarterbreed kits for Jag 6-cylinders (XJ6 Sedans, Mark
    I, II, IX or X models) are available - call for free info.



    There is a street rod in the area with a Weber-carbed 4.2 and the
    John's 700R4 swap whose owner reports complete satisfaction.
     
    Bret Ludwig, Oct 25, 2006
    #18
  19. mike

    Some O Guest

    My '95 Concord does that for 2 nd through 4 th.
     
    Some O, Oct 25, 2006
    #19
  20. mike

    DeserTBoB Guest

    The first Ultramatic came out in mid '48 in the new "bathtubs" to
    compete with Buick's new Dynaflow. Buick already had a better engine,
    and Packard felt that they'd better have an automatic transmission if
    they were going to keep offering their obsolete flathead 8. De Lorean
    hired on at Packard in early 1952 after getting a better offer from
    them to quit his new job at Chrysler's engineering department in
    Highland Park, MI. He soon replaced a retiring Forest McFarland as
    chief of R&D at Packard, and it was he who updated the Ultramatic to
    "Twin Ultramatic" and contracted with Ford's Autolite for the electric
    control for '56...a fatal flaw. James Nance, head of Packard, had
    hoped that De Lorean's and stylist Dick Teague's young talents could
    combine to save Packard from their '48-'50 "bathtub" fiasco and their
    indifferent styling of '51-'54, but they just didn't have enough
    capital to work with, and Packard's ancient factory was ill suited for
    modern mass production. As it was, Teague's new body for the '55s was
    scrapped and a clever "remake" of the '51 body sufficed for '55 and
    '56. The V8s came about three years too late, and the Ultramatic
    already had a nasty reputation when compared to GM's HydraMatic and
    even Buick's Dynaflow. Had Packard had the V8s before Buick
    introduced theirs in '53, had the Ultramatic project gone a bit better
    and had they been able to switch over to Dick Teague's new body styles
    slated for '57, Packard might have been able to give GM and Ford some
    serious gas for awhile competing against their more profitable
    high-end cars. A resurgent Packard would've wiped out Ford's Edsel
    even worse than it turned out, and GM's Buick and Olds divisions
    would've had some serious erosion. As it turned out, the takeover of
    Packard by the Studebakers was more a marriage of two also-rans, with
    predictable results.
    See above.
    That wasn't really a problem, so long as line pressure could be
    maintained. The real problem was that the torque converter output
    shaft bushing would wear and start to leak a lot of oil, thus
    depriving the lockup clutch servo (and every other servo in the
    transmission, not to mention the lube lines) of pressure, thus causing
    the TCC to start to slip. The straight 8s could tolerate this awhile
    longer, since they were quite a bit lower in torque than, especially,
    the '56 V8. Once the bushing would leak, a predictable series of
    failure events would happen, first with a lack of lube oil to the rear
    of the transmission, then overheating of fluid caused by converter
    clutch slippage, and total failure shortly thereafter. Even Packard
    fanciers these days replace the Ultramatic with a THM700R4. Stick
    shift or GM converted '55 and '56 Packards also command premium prices
    over Ultramatic examples except for purists. Another factor was
    inefficiency...much power produced by the Packard 374 was wasted in
    the 4 element torque converter during acceleration, much as it was in
    contemporary Buicks. There is only one source I know of in the world
    for Ultramatic master kits anymore, and he's retiring any day
    now....Reseda Transmission in Los Angeles.
    Hard to say...not that many Golden Hawks were produced! Many Golden
    Hawk owners have similarly ditched the Ultramatic for the THM400 and
    THM700R4 conversions.
    The oil pump mess on the '56s was due to a flimsy bottom casting that
    would warp and cause leaks, thus lowering oil gallery pressure.
    Hudsons and Nashes used electric wipers and didn't need the vacuum
    pump, which was replaced with a steel plate that did not warp.

    The '56 Hudson and Nash used the Packard V8, but with GM's
    discontinued (for cars, not trucks) Dual Range HydraMatic. Although
    these cars looked like they were more suited for a rest home than
    anywhere else, they could easily eat lesser Chevies and Fords, even
    Oldsmobiles, due to their huge displacement and efficient
    transmission.

    GM loved the deal, since they were switching over to the new Dual
    Coupling HydraMatic on mid-'56 cars, and providing both the new AMC
    and GMC Truck and Coach with cast iron HydraMatics cleaned up lots of
    surplus cases and parts until 1962. A '56 Hudson or Nash so equipped
    would run rings around any '56 Packard, simply due to the better
    transmission of power to the rear axle. I know...I had a '56 Hudson
    Wasp Hollywood sedan for awhile, and I've also driven a few '55 and
    '56 Packards. The Packards accelerate like a bus in comparison. One
    drive in that car told the tale of why Nash had to fold their
    tent...the car drove like a pre-war Ford and couldn't safely handle
    the power of the big Packard V8. Brakes were as bad as Chrysler's
    Lockheed brakes of that era...meaning horrible. All the Big 3 cars
    handled and rode far better than the Hudsons/Nashes of '55-'56. The
    Hudson would wallow, bounce and shoulder side to side in the most
    disconcerting fashion, even worse than a '37 Ford. Also, interior
    appointments in the Hudson harkened back to around 1946. They simply
    could not compete. By '58, George Romney's new AMC dumped the big
    Hudsons and Nashes and concentrated on their bread and butter...the
    Rambler and Metropolitain lines.
    That was the DG-150/200 three band, a heavy beast, almost outweighing
    GM's chunky HydraMatic.
    The ink on the Stude takeover was dried in early 1955, with conveyance
    of all Packard equities to Studebaker at the end of 1956 production.
    The first thing the Studes did was shut down the Detroit Packard
    factory and trash all the Packard archives and records. Next, they
    sold the near-new Packard engine plant to Chrysler. That's where all
    those "A" engine hydraulic lifters came from, as well as many other
    "A" engine parts.
    Studebaker rejected the Ultramatic due its bad reputation after the
    Golden Hawk had problems with it, preferring to stay with B-W until
    1964. Also, retaining the Ultramatic would've made keeping the
    Detroit plant open, something that was a non-starter with the Studes.
    B-W also provided auto transmissions for Checker Motors up until 1971,
    even after going to Chevrolet Division engines in 1964. Prior to
    that, unless special ordered, all Checkers used Continental 223" 6s
    with B-W Model 8s, while optional Chevy V8s used the Model 12, same as
    what was used by Studebaker and licensed to Ford as the original MX.
    True to AMC after GM ceased providing Dual Range Hydra Matics for AMC
    at the end of the '62 model year. '63 onward AMC used B-Ws
    exclusively, while Stupidbaker continued using B-Ws all along. GM had
    closed the cast iron lines at Detroit Transmission to make way for the
    new Turbo HydraMatic 400 line which debuted in '64.
    'Flash-O-Matic,' derisively known as "Flush-O-Matic" in view of
    superior offerings from the Big 3 at the time.
    That was a B-W Model 12 design which Studebaker used to replace the
    B-W DG150/200 three band from 1956 until 1964. Avantis with B-Ws
    that I saw had a similar quadrant to Ford MX/FMX/C4/C6s until '68.
    Common mistake also with Ford drivers who didn't start the car in the
    *second* drive position (the green dot). Ford got the second gear
    start option from B-W and found it a popular feature for drivers in
    the NE and north, who had to drive on ice all the time. The reduced
    torque at the rear wheels due to a second gear start would prevent
    wheel spin. That's why they carried through the second gear start
    ability with the 1968 revision called "SelectShift" on all later C4s
    and C6s.
    1964, introduced on the Cadillac DeVille and above cars. The base
    Series 62, the Series 75 limos and Commercial Chassis used leftover
    Dual Coupling HydraMatics until late in '64 when they were depleted.
    They're actually more desirable cars. The "new" 390 with a Dual
    Coupling would out accelerate any THM400 car every time and turn in
    better fuel economy...GM duping the public...again...still? The other
    part of the plant that was producing Rotos for Olds and Pontiac would
    then be shut down in late '64, and Buick, Olds and Pontiac
    intermediates would get stuck with Buick's 275 and 300 2 speeder with
    a switch pitch converter while GM converted those lines to THM400
    production. Again, performance and economy suffered. Meanwhile,
    Chevrolet Divsion, by then managed by (guess who?) John De Lorean, was
    given the OK to build their own, cheapened version of the THM called
    the 350, while Buick converted their 275/300 production to the THM375
    to supply Buick and Pontiac. For a few years there, it could get
    quite confusing as to what car had what transmission, especially at
    Pontiac.
    If it was a '67 A-series Marathon, it had a B-W 12, like AMC V8 cars.
    When CMC abandoned Continental for engines due to Continental's
    refusal to stay in the automotive gas engine business, they opted for
    the Chevy 6s and V8s and used the B-W 8 or 12 until 1971, when they
    went with the THM350 from Chevrolet Division. From about '65 to the
    end, B-W was supplying units simply to supply Checker and AMC and by
    '71, they decided to exit the US business, which sent Checker to GM
    for a "package deal" on Chevy engines and transmissions, and sent AMC
    to Chrysler begging for Torqueflites.

    The big reason B-W finally left the US transmission market was Ford.
    When the MX/FMX was replaced by the C6 in '66, B-W lost their biggest
    income stream and parts buyer, since the C4/C6s were strictly a Ford
    product built with a lot of Chrysler's A-727 Torqueflite design.
    Simply supplying AMC and Checker wasn't attractive long term to B-W,
    as sales of both were on the decline. By that time, B-W's
    transmission business was focusing on eliminating US manufacturing
    altogether, preferring to live on design/license work done for the
    Japanese and Euro builders. Almost all Japanese cars imported to the
    US in the '70s had a B-W licensed box, as did VWs.

    Checker's reputation for economical and rugged operation went down the
    crapper with the Chevrolet conversion. The old Continentals, which
    had been around since the late '20s, and B-Ws were bullet proof in
    taxi and airport/hotel shuttle service, while the Chevrolets
    were...well...Chevrolets. It was after the first round of GM powered
    Checkers that many fleet operators started going back to Chrysler to
    avoid the short engine life of Chevy V8s, which would usually barely
    make 70-80K miles before major work was needed. Soft camshafts and
    "walking" main bearing caps were a Chevrolet trademark well into the
    '80s.

    It wasn't uncommon for the lowly old Connie 6 to rack up 300K miles
    without having its head off. One fleet I worked for had a few '61
    Checker Aerobuses with Connie 6s and B-W 8s. The longest toothed one
    had over 402K on it and was still original except for a valve grind.
    The B-W had only been drained and bands adjusted...period.
     
    DeserTBoB, Oct 25, 2006
    #20
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