Leyland Car Owners -

Sunday, November 06, 2005
: Right oh ,
: i just found the prob (I think) I had a go at re-tuning the holley 600 carb and found that when I turned idle screws back in and only turned them out half a turn the motor started to run smoother and now theres no smoke out the pipes.
: Now the question is I thought that these carbs had a one and a half turn idle ajustment??
: Could there be another prob?(leak?)

: Any way its running alot better apart from the trani slipping like crazy(bloody borg warner 35) im hoping to put in a turbo 700 r4 when i get the time.
: For now is there a way to reajust the front bands without taking the trani out??

: cheers ,
: niko.

Tue, 8 Nov 2005

: Soz for the slow answer – lots of things not P76 are present in my world at the moment.

: Bad news is you need to drop the pan to adjust the front band – but that’s all you have to do (so you can leave it in the car ) .
: The P76 workshop manual has one of the best sections on the BW-35 ever written .
: The “BW-35” trans are quite reasonable if serviced regularly and kept fed with cool trans fluid (very important) and the P76 V8 version is probably the strongest version made with extra clutches a larger internal main shaft etc .
: Later cars were to rehash the V8 P76 box again and call it the BW-40 .
: BW had concerns about the toque this new version of the box could absorb and the weak area around the bell housing bolts failing , so Leyland fitted the top braces and lower plate between the pan and housing to prevent the casing failure , later ’40 variants were to also have similar fittings in Fords etc .
: Having said that they are not designed for large horsepower or constant “harsh” use (heat usually kills them) .

: Available 3 speed autos include the BW-65 as used in Rovers which is basically the ’35 with a redesigned case to make some things easier to fix but they are no stronger .
: The Rovers also used the GMH trimatic and so have a bell housing to suit a P76 ( they are stronger ) .
: and finally Range Rovers used a adaptor to fit a Valiant “Toque flight” and these are very strong .



: Alternatively , your present options for 4 speed autos are the early non computer controlled T-700 from GMH or you can use a “ZF” from a BMW using a BW-35 bell-housing and adaptor .
: BMW “ZF’s” are not as expensive as you think as many BMW’s had them and there is no real demand for them .
: Look around and you can find them for $250.00 .
: You need to create a tail shaft to suit and the rear mount is different (obviously) but you must use a electronic speedo as the ZF doesn’t have a speedo output at all.
: The ZF is the 4 speed auto also used in the late Range Rover’s but it has a very different output shaft and is mounted on a slight angle .
: All auto conversions are available from “The Rover Center” in Victoria (9782 2630)


: Hope all this helps , now where was that coma ……

: Rick

Leyland P76 Owners 2006

Technical

Auto's and options for the P76

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