Crankwalk evo 5 engine!

[ptaroni]

As stated above, the other day after work the clutch pedal started to oscillate, when letting off and accelerating. Removed the inspection bung on the gearbox and got my dad to press the clutch pedal and could see the flywheel moving. Just got in the house aftet removing the sump and crankshaft cradle and pulled the thrus washers out and cannot see any excessive wear or size difference to the new ones i have bought. The rest of the bearings look fine, no scores etc but then also noticed that my gearbox bell housing has a crack around where the dowel is on the front of the box and the bolt is long gone! Any ideas apart from waiting till i get to work and measure the thrust washers which a micrometer. Im pretty sure that the only thing thats stops the crank moving is are the thrust washers, please correct if i am wrong. Also there were no noises and the oil is clear from metal fillings etc. thanks

 

[madhillbilly17]

need to measure the crank movement with a dti gauge pulley side really, off the top of my head i think it should be between 0.05mm to 0.18mm,can only be the trust washers like you said,i would have thought the crank walk has to be pretty bad to cause the clutch pedal to drop,mine had 1.5mm end float and my clutch pedal was fine,i would also be looking at either the clutch slave and master cylinder.

 

[ptaroni]

Put new thrust washers in sunday morning, took less than 3 hours inc oil and filter change And no more end float or oscillating clutch pedal! Compared the old washers to the new ones and could see alot of difference but as above its all sorted now! Run it for a couple of weeks and if all still good will be remap time!!