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M40 Transmission problem(s)! 120-130

uid 28180's pic
posted by  ClassicVolvoShop on  Wed Oct 6 07:39 CST 2004
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Hi,

I mostly agree with those answers regarding "not fully working mastercylinder".

Try to remove floorcarpet and check if mastercylinder is bleeding into the cockpit. It might sound strange, but I've seen it lots of times, -the mastercylinder is bleeding -VERY little is enough! -and the brakefluid in the system ruins the body-interior.

As described by others, check out if slavecylinder is moving the "clutch" "enough" -if not:

-absolutely no bleeding from the slave = problem in master.
->moist under carpet (up under/by the pedal-arrangement) and you're sure!

-bleeding from slave = problem in slave.

The bleeding and reduceing of function does not show big difference in the master's resovoir -the system is very fine-feeling.

Problem IS master/slave -not clucth itself.

Try: If you "pump" the clucth-pedal? -what happens?
- Seems the pedal can be "pumped up"? -if so, problem is mastercyl.
(Pumped up -like it feels that the "friction-point can be achieved at different pedal-level)

I hope you get my english - I'm danish, so I've got an excuse! :-)

/Soren





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