10 replies to this topic

[Mitch B]

Hey guys.

Since purchasing my 97 RVR HSG, I've noticed a rather loud rattling noise when backing off the accelerator in 3rd, and a lesser noise, but of the same type, in 4th.
The noise seems to be a little louder when backing off the accelerator down a hill also.
The noise is concentrated at, or around 50km/h.

I had a look underneath today. All the brackets are tight, cat looks fine, muffler is fine.
I did notice that there is a piece of exhaust flex pipe that rests on the sump.
Could this be the cause?

I have heard of this happening when a lightweight flywheel is in, but to my knowledge, the car doesn't have one.

Need some opinions and/or experience with this topic before looking into it further, i.e spending money to fix the fucker.

Edited by Mitch B, 20 August 2011 - 06:08 AM.

[Beastlee]

Sounds like the same thing we have. My gearbox man reckons it's the input shaft bearing.
Our flywheel has been skimmed and balanced but isn't what I would call lightweight.

[86psi]

my car does the exact same thing since the new clutch and billet flywheel went in. i thought something was wrong but it hasnt got any louder or anything

[Beastlee]

Hmm, we have an Exedy Fast Road clutch fitted but I'm fairly certain it's not the clutch springs [which can rattle].

[p055um5]

I'm with Beastlee, clutch springs, ring Chris at meek and tell him symptoms.
Save yourself a lot of money.
I had clutch changed (old one r/s) and rattle started after a couple of months,
got gearbox rebuild change tail shaft hanger bearing did not help, rang chris he fixed it quick

[vr401]

+1 for clutch springs. Had same issue on my galant. Changed the clutch to one with rubber replacing few springs and solved the problem.

[Mitch B]

Thanks guys.
Was hoping it was an exhaust rattle, although expecting it to be a clutch/gearbox issue
I'll look into it!

[Lister]

Clutch spring rattle comes STD with all non genuine clutch plates.

[Evo-00x]

Youtube a video of the noise
Do you notice the noise when the car is idling in neutral and parked? Does it disappear when you step on the clutch pedal?

[Mitch B]

It's only when the car is moving, and when I have released my foot off the throttle, around 50km/h in third gear. It is also slightly notIceable in 4th.
If I put my foot on the clutch while I hear the noise, it goes away.

[Beastlee]

It's only when the car is moving, and when I have released my foot off the throttle, around 50km/h in third gear. It is also slightly notIceable in 4th.
If I put my foot on the clutch while I hear the noise, it goes away.

Definitely the same issue here.