clutch problems

[JP240z]

im having real problems with the clutch in my 240z.

i think that the problem is the clutch not fully engaging, as it crunches in a big way when changing into first or reverse from standstill....it is at the point now where after putting the seal kit into the master cylinder and a new slave cylinder....the car is undriveable.

could this be due to a worn clutchplate?

im also hearing noises that i think are coming from the clutch bearing if that helps in the diagnosis.

any advice on this would be super.

the car is sooooo close to being finished for my licence and this is the last hurdle.

 

so....i will leave the diagnosis to the zed enthusiasts of victoria.

dont hesitate to throw anything out there.

 

ps...i have been unable to gather from the PO whether or not the clutch was reco'd with the gbox and engine. i think it hasnt due to the bearing sounds.

 

thanks in advance,

Jack.

[pauly_adams]

i have the exact same problem mine makes this buzzing noise when its in nutural so hopfuly some 1 no's whats goin on the good thing is itll pass a blue slip ect good luck gettin it fixed

 

pauly

[warrenz]

i have the exact same problem mine makes this buzzing noise when its in nutural

 

If the noise stops when you put your foot on the clutch it is most likely the thrust (or throw out ) bearing. Cheap to replace but you have to take the gearbox out.

 

Cheers

Warren

[JP240z]

okay...ive measured the stroke im getting at the slave cylinder.

its at 10mm and I dont think that's anywhere near enough.

just wondered if anyone could tell me what stroke they are getting with a fully functional clutch.

 

cheers

[nat0_240_chevZ]

Yea id say the pressure plate is on its way out, as they die their stroke becomes longer. also a noisy throwout bearing would indicate the clutch has had a bit of life.

 

just grab yourself a clutch kit stock if yo dont plan on killing it or a heavy duty one if you do plan on giving it a bit.

 

was this your rb30/25?

or an l-series??

 

if an l series depending on what flywheel you have ie a 240mm or a 225mm dia you can grab a 300zx turbo from z31 but worth taking yours off and checking before you hand over your hard earned dollars.

 

nato.

ps if you need more tilt from the engine to clear the tunnel(with the box), disconnect the exhaust after the headers lets the engine tilt back for you incase you didnt know.

[JP240z]

thanks nato.

i tried to eliminate all other problems before taking the gearbox off, but its the only way.

where would be the best place to go for a heavy duty clutch kit?

 

cheers,

Jack.

[pauly_adams]

i emailed exady clutches they have a very big range from single plate to double plate even for 240z 260z 2+2 ect so give them a call that might be your best bet cause i was gunna get a heavy duty 1 from them

 

cheers pauly

[JP240z]

well......i went and ordered a heavy duty clutch kit from repco prior to pulling the gbox.

only to find that my PO had installed a brand new clutch once id pulled the gbox and clutch out.

so....the clutch isnt worn or damaged...

but the thrust bearing is noisy and the clutch isnt disengaging fully....

after thinking about this dilemma for a while, i thought, could these problems have been caused by a slightly misaligned clutch? Could a perfect thrust bearing be made noisy by misalignment issues.

ive concluded yes.

and the gbox and clutch will go back in tomoro....

oh an by the way....neva do something stupid like pull a gbox on new years day....coz those things that roll you under the car are really easy to fall asleep on.

 

cheers,

Jack.

[JP240z]

well...my diagnosis was sort of right,

i made a tool up on the lathe to simulate the gearbox shaft so i could line up the clutch as i bolted it on....but wen i went to put the tool through the clutch and into the block i realised that there was heaps of slack around the tool...so after a short look I came to the realisation that my gearbox had been put in without a spigot bush by my PO alowing the gearbox shaft to move at least 5mm each way. so after going to repco and installing the bush, i went on to put the gearbox back in and go for a test drive.

Success! problems gone and clutch is beautiful.

so, i guess we can all just add that experience to our archives of friken stupid previous owners.

 

cheers,

JP

[Zeddophile]

Sounds like your motor was previously attached to an auto then!

 

Good work on picking up on that one, many wouldn't!

[JP240z]

no...the cars always had a manual, but it had to be taken out for reco.

[pauly_adams]

thanks for that id say the same things up with mine due to the PO was a bit of a mr fixit i found

 

cheers pauly

[RBZ 260]

bit late on reply sorry was on holidays. i hada similar thing in a honda prelude. though only reverse seemed a problem but other aspect was when reved hard vibrations could be felt and heard.

 

clutch was worn as well as the bush believe it or not honda doesnt supply so had to get one made. HINT NEVER BUY HONDA. though solved the problem and sold the damn car straight after.

 

though i had clutch problems and box problems galore with my s14. Well doesnt help with launching hard and shifting like theres no tommorow. 3x s14 gboxes 1xdiff and 3x heavy duty clutches RIP.

 

pretty much now i know whats wrong and whats next on the list. i smell another gbox comming up :cry: hear a clunking noise when in neutral. when u press the cluch the noise goes away.

 

had this problem before i was told it was the thrust bearing after a quick blast down the road it spat the dummy "the box not the bearing" and totaly ripping of 4 gears lot of metal came out when the plug got drained. was like jackpot in pocker machines. the thrust bearing was still ok but new clutch come in at the same time so it was all replaced.

 

still have the box with all the gears stripped off teeth. quite impressive. that was first box second had similar faith but i never heard any noise. damn that was quiet gbox.

 

:twisted: