Author Topic: m20 flywheel swap clutch problem (Read 2639 times)

Bimmer805 · « **on:** November 01, 2012, 07:10:29 PM »

i recently bought a m20 flywheel and pressure plate/clutch from a member here about 5 months ago for my 318is and i finally gathered all my necessary parts for the swap. well i took it to a friend to do the swap for me. and he ended up telling me that the clutch and pressure plate are squeezed together and he said it doesnt seem right to him. he looked at the flywheel and told me that the flywheel doesnt have an indentation on where the clutch will sit on? my question is are all M20 single mass flywheels are the same? or is there a specific m20 flywheel that will fit for my M42?

romkasponka · « **Reply #1 on:** November 02, 2012, 04:02:08 AM »

Single mass m20 flywheels can can be different, but all difference is in the weight and some should be moded to fit on m42 and the problem is the clearance between flywheel and engine. The problem can be in the clutch if it is for double mass flywheel but if it is right there sould not be any problems. If the clutch is for double mass flywheel I think you will not be able to tighgen the clutch screws because they will be to short.

Bimmer805 · « **Reply #2 on:** November 02, 2012, 02:21:43 PM »

Quote from: romkasponka;117323

Single mass m20 flywheels can can be different, but all difference is in the weight and some should be moded to fit on m42 and the problem is the clearance between flywheel and engine. The problem can be in the clutch if it is for double mass flywheel but if it is right there sould not be any problems. If the clutch is for double mass flywheel I think you will not be able to tighgen the clutch screws because they will be to short.

how will i know the clutch is for a dualmass? because i bought flywheel, clutch and pressure plate from someone at the same time?

romkasponka · « **Reply #3 on:** November 02, 2012, 06:01:14 PM »

Quote from: Bimmer805;117330

how will i know the clutch is for a dualmass? because i bought flywheel, clutch and pressure plate from someone at the same time?

By part number, visualy the difference is not so big.
http://webcat.zf.com/index.asp?SPR=4

Correct clutch
P/N 3082 005 134 pressure plate
P/N 1878 005 615 clutch disc with springs

Clutch for dual mass flywheel
P/N 3082 896 001 pressure plate
P/N 1864 919 001 clutch disc without springs