Clutch slipping or not?

xii · Post by **xii** » Sun Sep 14, 2008 5:33 pm

Hi guys, thought i'd post this up for some advice.

I have a 92 L wagon and it was fine until I stopped at a set of traffic lights a few hours ago. When the lights turned green and i let off the clutch with some gas as usual, I couldnt get any bite on the clutch at all. The gearbox gives a fast rattling/knocking sound like some metal thing hitting a propeller constantly when I rev the engine and let my foot off the clutch pedal. This was in front wheel drive mode and was about to call a tow truck when I decided to try 4WD. Theoretically I didnt expect it to work but it did! Clutch bites and the car moves as per normal in 4WD mode.

Now im not an expert but isnt the rear wheel drive behind the clutch as well? My rear wheels shouldnt be moving the car if it was a worn clutch slipping right?

Secondly, symptoms of a worn clutch should have been gradual and noticable instead of being so sudden? I also suppose a slipping clutch should sound more like a grinding noise instead of knocking.

Would appreciate any advice on this. Thanks!

Cheers
Calvin

tambox · Post by **tambox** » Sun Sep 14, 2008 5:48 pm

check your front drive shafts, sounds like a joint has popped or broken

Suba · Post by **Suba** » Sun Sep 14, 2008 6:21 pm

Certainly sounds like it could be a cv , strange that it would go without warning though.

Mike.

xii · Post by **xii** » Mon Sep 15, 2008 12:08 pm

Hmmm thanks for the replies. I doubt its the CV as i put in reconed ones not long ago. Ill check today anyway. Could it be the transfer case or front diff?

Also, There is no noise in 4wd mode. If it was CV, should the noise continue in 4wd mode? Thanks

Suby Wan Kenobi · Post by **Suby Wan Kenobi** » Mon Sep 15, 2008 1:27 pm

Wouldnt be the transfer gears if you have drive in 4WD which are at the rear of the box. Could be the front diff but would be unusual. Still even with recoed CV's they would still be worth a check. Could also be the high/low gears out of adjustment too.

92 brumby · Post by **92 brumby** » Mon Sep 15, 2008 3:59 pm

i would say cvs because ive had a bad run out of reco cvs in my eyes your beeter off goin new ive had mine in for nearly a year and they are goin good no clicking at all yet

Cam · Post by **Cam** » Mon Sep 15, 2008 4:15 pm

When i did a front inner there wasn't much warning, just let go, no clicking only a slight rumbling noise a little before it gave way...

AndrewT · Post by **AndrewT** » Mon Sep 15, 2008 5:27 pm

yep, it's a front CV for sure.

Busdriver · Post by **Busdriver** » Mon Sep 15, 2008 6:43 pm

I think you can stop worrying about the clutch anyway- no clutch = no go in 2wd or 4wd.
Pardon my ignorance please, but if it was a front cv or any thing to do with a front driveshaft, why would it not make the same noise in 4wd as it does in 2wd? They are still turning arent they?

INEEDABEER · Post by **INEEDABEER** » Mon Sep 15, 2008 7:06 pm

Why is in 4wd in the first place?

Post by **Alex** » Mon Sep 15, 2008 7:24 pm

put your car in low-range 4wd. Pull up the handbrake and do a big massive skid! lol

your cv shaft has broken. GUARANTEED!

alex

D3V1L · Post by **D3V1L** » Mon Sep 15, 2008 7:25 pm

because in fwd its trying to drive the front wheels.....slippery diff means drive goes to blown joint = noise

in 4wd front and rear split is the same so the rear drives the car and the front wheels turn as well the same speed as the CV, last time i blew a cv i didnt hear it, unless in 2wd

but again..i could be worng..might not be a cv at all:P...may be blown front diff...but i doubt that

dave

AndrewT · Post by **AndrewT** » Mon Sep 15, 2008 9:28 pm

slippery diff? i might mean open diff dave, I don't think he has an STI gearbox with front lsd

D3V1L · Post by **D3V1L** » Mon Sep 15, 2008 9:37 pm

i know what i mean andrew...u just need to think aobut it...lol..slippery diff...open diff...same shit different day:P

YouTube · Post by **El_Freddo** » Mon Sep 15, 2008 9:37 pm

D3V1L wrote:because in fwd its trying to drive the front wheels.....slippery diff means drive goes to blown joint = noise

in 4wd front and rear split is the same so the rear drives the car and the front wheels turn as well the same speed as the CV, last time i blew a cv i didnt hear it, unless in 2wd

Agreed with the above.

Cheers

Bennie

Morcs · Post by **Morcs** » Wed Oct 01, 2008 9:45 am

Center diff cage thing in gear box.
Probably cheaper to source another gearbox