Jump to content
SAU Community

Recommended Posts

So with the help of Luke and a few others today we got the gearbox out of my car to try and find out what was behind the bad grinding sounds and gear selecting problems. As soon as the clutch came off the reason for the grinding sound was pretty clear. The clutch centre was rubbing on the bolt heads on the centre of the flywheel. Im not to sure what caused this to happen but im very happy that the clutch didn't explode at the time attack on monday as the result could have been pretty bad.

I'll have a look on here to see what i can find but if anyone has any hook ups with clutches let me know. Gonna go for a twin plate this time round, need some thing thats good for 300kw+

flywheel.jpg

clutch2.jpg

clutch.jpg

Link to comment
https://www.sau.com.au/forums/topic/291411-clutch-fail/
Share on other sites

  • Replies 55
  • Created
  • Last Reply

Top Posters In This Topic

Top Posters In This Topic

Posted Images

Woah! Lucky it didn't let go at the time attack.

Glad to hear you caught it just in time. Didn't look like it would have lasted much long.

and +1 to never seeing a clutch like that before. :)

Link to comment
https://www.sau.com.au/forums/topic/291411-clutch-fail/#findComment-4873255
Share on other sites

Kubos motorsport, do good GENUINE Exedy clutches, all parts branded Exedy, not mix and match crap. Talk to him, very helpfull, good quality and great prices. There are some RB25/30s running these clutches, i'm pretty sure cubes was impressed with his.

Link to comment
https://www.sau.com.au/forums/topic/291411-clutch-fail/#findComment-4873314
Share on other sites

The clutch centre was rubbing on the bolt heads on the centre of the flywheel. Im not to sure what caused this to happen but im very happy that the clutch didn't explode at the time attack on monday as the result could have been pretty bad.

Pretty clear that the clutch centre let go 1st and then bowed out against the flywheel bolts......obviously bolts need to be replaced now regardless if they're still tight.

Seen clutches like that before....usually caused by hard launches or flat changing causing the centre to over flex.....also if it's excessively tight over the splines during release.

Link to comment
https://www.sau.com.au/forums/topic/291411-clutch-fail/#findComment-4873390
Share on other sites

The springs probably bottomed out also, causeing shock loading which made it crack. I'm no expert on clutches but I know my metals, those cracks look like a combination of high temps and shock loading.

I was just saying the other day at vilis that i didn't like those clutches after a bad exerience I had with mine.

Link to comment
https://www.sau.com.au/forums/topic/291411-clutch-fail/#findComment-4873437
Share on other sites

i could probably get you an os for a decent price.

If you could find out that would be awesome, I'm after a twin plate to take 350-400rwkw and lots of track use. Also need it ASAP!

Cheers!

Link to comment
https://www.sau.com.au/forums/topic/291411-clutch-fail/#findComment-4876533
Share on other sites

True twin plates are never going to be as good as a single for very quick gear changes as you're attempting to release 2 driven plates as opposed to 1.

However, we don't have a drag strip and grip racing doesn't require the lightning fast changes that drag racing does, hence why I went for the Coppermix Twin plate......which in actual fact, is not a true twin plate (ie. with intermediate plate) cause it uses a single sprung Boss Drive. The other reason I went this way is cause of the lighter diaphram that you can get away with and still get a greater clamping pressure.

I've never ever liked solid centre style driven plates or the metal button style ones either cause they're not forgiving as a daily driver. Also double diaphram pressure plates used to be the rage years ago but your left calf muscle needs to be bigger that your right, lol. Drivelines also hate these 3 style of setups.

Link to comment
https://www.sau.com.au/forums/topic/291411-clutch-fail/#findComment-4876582
Share on other sites

yeah I had one let go in similar fashion , opened up the pressure plate to find shrapnel inside it on my RX7, Aluminum flywheel / Center force racing clutch

make sure you check the run out on the flywheel, bet it could be borderline to thin?

also check the bearings on the input shaft ,always replace the center pilot bearing, you call it something else in OZ. but it goes into the crankshaft?

good time to swap out the seals on the input shaft as well ?

and if your real bored polish the casing to mirror finish..hahahah

sucks mate but least your floor doesnt have a hole in it from the flywheel

Link to comment
https://www.sau.com.au/forums/topic/291411-clutch-fail/#findComment-4877746
Share on other sites

yeah I had one let go in similar fashion , opened up the pressure plate to find shrapnel inside it on my RX7, Aluminum flywheel / Center force racing clutch

make sure you check the run out on the flywheel, bet it could be borderline to thin?

also check the bearings on the input shaft ,always replace the center pilot bearing, you call it something else in OZ. but it goes into the crankshaft?

good time to swap out the seals on the input shaft as well ?

and if your real bored polish the casing to mirror finish..hahahah

sucks mate but least your floor doesnt have a hole in it from the flywheel

Scopot Bush?!

Edit: Damn word filter, i mean one of these - i bet the word filter messed with the link.

Edited by Aberax
Link to comment
https://www.sau.com.au/forums/topic/291411-clutch-fail/#findComment-4877991
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now



  • Similar Content

  • Latest Posts

    • Hi...so a "development" here aswell The swap is "done" and car went "test drive" BUT it seems the clutch(maybe gearbox?) is a little bit sad? I bought this clutch kit https://justjap.com/products/xtreme-heavy-duty-organic-clutch-flywheel-kit-nissan-skyline-r31-r32-r33-push-type "Problem" is that the first gear is hard to put into and it seems that the clutch is not disengaged. It was not the problem with the old clutch...(or like sometime the first gear would not get as easy specialy when the fluid was cold) So? Can it be like...bad "install" or is the clutch wrong ((it should not have been) i done research to get the right one) Or is this "normal" with new clutch and needs to be break in? 
    • @Duncan I can try  and thanks i did not thought about VIN and part numbers for 33/34. @GTSBoy yeah it looks like iam gonna do that  
    • Forgot to include this but this is the mid section of my steering rack that looks like it has a thread/can be turned with that notch mentioned in the post:
    • Hey everyone, Wanted to pick some brains about this issue I'm having with rebuilding my 33 rack (PN is 49001-19U05). All of the tutorials/videos I've seen online are either R34 or S Chassis racks which seem to be pretty straightforward to disassemble but this process doesnt carry over to my rack. Few of the key differences that I've noted The pinion shaft on the other racks bolt on with 3 torx bolts: Whereas my rack bolts on with 2 allen head bolts: These changes are pretty inconsequential but the main difference is how you pull the actual rack out of the housing. The other skyline/s chassis racks can be taken out by tapping the rack out of the body with a socket and it just slides right out. I'm unable to do that with my rack because there's a hard stop at the end that doesn't let the seal/shaft be tapped out. Can also see a difference in the other end of the rack where mine has a notch that looks like you're able to use a big wrench to unthread 2 halves of the rack whereas the other racks are just kinda set in with a punch. My rack: Other racks: TLDR; Wanted to know if anyone has rebuilt this specific model of steering rack for the R33 and if there were any steps to getting it done easier or if I should just give this to a professional to get done. Sorry if this post is a bit messy, first one I've done.
    • I would just put EBC back on the "I would not use their stuff" pile and move on.
×
×
  • Create New...