Gearbox noise

[Paul Beazer]

I have recently purchased a 4yr Old V6 sport manual with 87k on the clock. :-D

However, when the engine is running there is the noise of what sounds like a rough / dry bearing. :sad3:
When i push the clutch down, the noise stops. When I drive off it gets a bit louder, and if i lift off the accelerator again it quietens down.

My feeling is that its not the clutch release bearing as it stops when the clutch is depressed. I think that it may be down to a knackered thrust bearing on the input shaft or something. The gearbox oil has been replaced, but made no difference im told.

The gearchange is absolutely fine and the noise is around through all gears (including reverse). If anyone has any thoughts / suggestions please let me know! :dozey:

Cheers
Paul

[Polabear]

I have recently purchased a 4yr Old V6 sport manual with 87k on the clock. :-D

However, when the engine is running there is the noise of what sounds like a rough / dry bearing. :sad3:
When i push the clutch down, the noise stops. When I drive off it gets a bit louder, and if i lift off the accelerator again it quietens down.

My feeling is that its not the clutch release bearing as it stops when the clutch is depressed. I think that it may be down to a knackered thrust bearing on the input shaft or something. The gearbox oil has been replaced, but made no difference im told.

The gearchange is absolutely fine and the noise is around through all gears (including reverse). If anyone has any thoughts / suggestions please let me know! :dozey:

Cheers
Paul

You called it right first time Paul, the thrust bearing WILL quieten down when it comes into contact with the pressure plate fingers, beacuse what you are doing by forcing it against ther p/p is taking the slack/wear out of the bearing race itself.....
;)

[Kieran]

Bleh! Hordak's been making this noise... (he's been doing it a while and got worse after a bungled start at the 'Pod! :$:$)

Well at least I know what it is now.... Bugger! More Megapounds!!!! :rolleyes5

[Paul Beazer]

You called it right first time Paul, the thrust bearing WILL quieten down when it comes into contact with the pressure plate fingers, beacuse what you are doing by forcing it against ther p/p is taking the slack/wear out of the bearing race itself.....
;)

Ok, so is this an easily done job (not by me, but a pro!)? Or am I wasting money on what could already be a gearbox slowly dying?

I went to see my Mitsi dealer his morning who said that they would be able to do the work and quoted £1300 for a NEW gearbox & fitting, ouch! His point was that the thrust bearing could probably be fixed, but that other stuff might then go tits up in the future.

I think whoever had the car before (and im not including you in this, Nick Mann!) was quite hard on it, as its had 2 clutches in 70k miles! This sounds a bit low mileage to me! My last car, a Sierra Ghia estate (dont laugh I really liked it at the time!) did 42k miles on the same clutch.

Any further thoughts opinions would be welcomed!

Paul

[Kieran]

I think whoever had the car before (and im not including you in this, Nick Mann!) was quite hard on it, as its had 2 clutches in 70k miles! This sounds a bit low mileage to me! My last car, a Sierra Ghia estate (dont laugh I really liked it at the time!) did 42k miles on the same clutch.

Any further thoughts opinions would be welcomed!

Paul

Certainly think replacing the whole box is utter overkill. I think the dealer's trying to hoodwink you there.

Regarding clutches... I've No idea what number clutch mine is on, but when I was talking to the workshop manager at my local dealers, he reckons that the V6 can chomp through them quicker than you think - And 2 clutches in 70,000 gives the clutch an average lifespan of about 35,000 miles..... There's worse out there - Anyone else owned a Cinquecento Sporting before?! :$ :$

[Spirit]

Why not simply call a local gearbox specialist and get their opinions on it - I'm sure they can just do the bearing for a reasonable price. I think they will be more likely not to rip you off as they should have a reputation to maintain - and as usual word of mouth is usually best - ask work colleagues/friends/neighbours etc if they know of anyone.

[Nick Mann]

I noticed that as well, Paul. My previous V6 had 45 on it when I bought it and 80 when I sold it. I never had a murmer from the clutch. Going on the history of yours, you'd have thought that if I owned one for 35k, I should have seen a clutch replacement?!

Sorry I can't help - I think we covered all aspects whilst we chatted at the weekend.