problems with 325i transmission.

Nedavno vanbasten1 napisa:

Wrong gearbox oil?

Perhaps the synchronizer is worn. There may be a way to evaluated the condition of the synchronizer without tearing the transmission apart, but I don't know of one.

Jim

I'll try chnging to different oil. we'll see what happens. Thank you.

In the old days we used to test a synchro by letting the engine tick over and pushing the lever into gear - the linkage used to be directly into the casing and not on the outside - haven't seen a BM box for a long time.

If the engine revs fell one could assume the synchro rings were Ok. Another test was to let the car pick up speed by itself - no appreciable throttle - in first then lift off and try to slip it into second - if it went in easy then no problem but this only works going up the box.

However a true sign of synchro ring problems is Crunching the gears. If it jumps out of gear it is usually the synchro-hub springs and balls and locating plates.

Hugh

Sounds like maybe the clutch is dragging a bit when fully depressed (disengaged). This would make it hard to shift into gear when the engine is running.

I cahnged the oil from 80W to 70W. This made the shifting a bit better. But there is still a problem.

Er! Are you sure that it requires oil this thick? I remember the old Rover V8 gearboxes used engine oil and had a rear bearing oil pump and I recall that this was based on the ZF boxes that BMW use.

Nedavno snipped-for-privacy@nowhere.com napisa:

So does my E30 M10 316.

I haven't been following this thread, but if you have a hard-shifting manual transmission, I have found Royal Purple SynchroMax to do wonders.

Bob