strange marks on pressure plate and fly wheel

[max1]

hi, i think there is a problem with my clutch. i put new one in about a year ago, now i have decided to rebore block have removed clutch to find strange marks on pressure plate and fly wheel. has always felt soft and maybe slipping but not sure. cos compresion down a lot.what i found was two pressure marks ajasent to each other in the center of the pressure plate, but no normal wear marks enywhere els on it. i would post pics but don`t know how. any idea`s ? . [/b]

[liquid079]

Try this:


Hang on

[liquid079]

http://www.e30zone.net/modules.php?name ... g+pictures

[max1]

thanks i`ve tryed it and here is link. http://img85.imageshack.us/img85/8070/c ... te1st0.jpg
and another link. http://img132.imageshack.us/img132/6465 ... te3dd1.jpg
http://img223.imageshack.us/img223/2092 ... te5db8.jpg

[max1]

anybody have any idea`s what might be causing these marks ? cos i am going to be assembling shortly.
noted no oil leaking from gearbox side.

[liquid079]

Have you tried laying a ruler across those spots on the pressure plate to check those aren't raised/depressed spots?

I have a M20 pressure plate unused at home if your interested max .

[liquid079]

Whoops forget that, I've just seen where you live .

[DRIFTBOY]

Looks like heat damage to me dude!





Been giving it a bit of stick, have you?

[marlon]

It does look as though fluid of some sort has got in and contaminated the friction plate by the ring around the centre of it.

Is it possible there was a blob of grease or something spilled/dropped etc when doing the clutch change ??

Have you tried cleaning the pressure plate marks off with say alcohol, meths etc ??

Sorry...not much help........

[stuartgallafant]

they're hot-spots, caused by a lot of friction

[max1]

hi, yes i tryed cleaning it with meths and thinners but didnt budge,and i put streight edge across flyweel but didnt see any noticable light through.when i put the clutch in i also put new crank seal, and had the flyweel mashined. i can understand if clutch plate and or pressure plate was maybe contaminated on one side but these marks are identical on flyweel too. another question how could i tell the diference between clutch slipping and the compression being very low, and no power?
i think both would give same simptoms eh. .

[max1]

haha
i wish i could have been giving it stick, but thats the reason iam reboring power was flat as a pancake.

[Nelly]

Preasure plate hot spots due to excesive heat fella - you'll find that the clutch plate is shagged now as well.

Best to replace both parts on the rebuil imo.

Neil.

[max1]

thanks to all input on this matter. i will get all new parts cheers.