Noise When Rolling Backwards

[davros]

Late last night I noticed a bad knocking / grinding noise when rolling backwards down the driveway with the clutch in...sounds bad. Seems to be coming from the around the back of the car, so i'm guessing the diff is stuffed?

Rolling forward with the clutch in sounds OK, as does driving backwards in reverse with the clutch out. Any ideas what might be broken?

Car is a R32 GTS-T, motor is all standard except for exhaust.

[98si]

Late last night I noticed a bad knocking / grinding noise when rolling backwards down the driveway with the clutch in...sounds bad. Seems to be coming from the around the back of the car, so i'm guessing the diff is stuffed?

Rolling forward with the clutch in sounds OK, as does driving backwards in reverse with the clutch out. Any ideas what might be broken?

Car is a R32 GTS-T, motor is all standard except for exhaust.

I noticed the same thing today. If anyone can lend a clue it would be greatly appreciated

[gt-t_r34]

i get too i just thought it was normal in reverse

[kiwi32]

My work van was doing the same thing was the rear driveshaft universal we didnt fix it till it was doing it going forward aswell.

[Sean'O]

I have heard on maybe one or two occasions of a "Thump!!" sound, rather than a grinding, I've got a feeling that maybe a bolt is loose back there, i'll probably get it checked out when i get new tyres in the near future.

But yeah, pretty sure i have come across this before on the forums, and its an easy fix (don't quote me though )

Sean

Edited November 23, 2006 by Sean'O

[GTS20X]

My gearbox is real noisey when rolling with the clutch in in reverse, clutch out it's ok, probably the straight cut reverse gears.

[dano4127]

mine makes a terrible noise when in reverse under load? anyone shed any light on this? no noise with clutch in tho

[sl33py]

If it's the same noise I hear in my car (about to be fixed I hope), my mechanic says it's common in R33s... There are two lengths of thick wire on the arm thing with the throw-out bearing (forgive the incorrect/lame names), and in between those wires, there is a screw with a ball-head on the end. Apparently the ball-end can snap off and the clutch can still do it's job just fine, but when you're in reverse with the clutch IN, and you let it come out to the catching point (especially while rolling backwards slowly), you'll hear it go *CLACK* *CLACK* with each press/release of the pedal - it's a really ugly noise. I hear it a little bit when changing gears too. The guy who installed this clutch for me has the same 5h1t in his car so he thought it was normal.. this other guy says most ppl don't even realise its a fault or bother to look for it. Lame. I should know in the next week or so if it is my problem for sure (clutch has to be changed anyway).

Edited March 16, 2007 by sl33py