Grinding Noise in lower gears - gearbox or clutch?

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delgwapo
Posts: 2
Joined: Sun Mar 09, 2014 10:48 am
Location: Oxford, UK

Grinding Noise in lower gears - gearbox or clutch?

Post by delgwapo »

Hi all

Purchased a 2003 206cc Allure 1.6 16V (87k) a couple of months ago - it's a fun car and I'm really enjoying driving it so far although there's an annoying grinding noise coming from the front passenger side of the engine which I'm currently trying to diagnose.

It occurs when the clutch is engaged and is most noticeable in 1st, 2nd and 3rd gear. As far as I can tell it doesn't occur in 4th or 5th. The noise goes when the clutch pedal is down.

My initial suspicion was low gearbox oil although the level turned out to be fine. Did a full change and replaced the drain plug and washer for good measure but it didn't make any difference.

I had my local garage look at it quickly whilst it was in for a timing belt change and they suggested it could well be a bearing in the gearbox or the clutch release bearing but was difficult to pinpoint without opening up the gearbox. Some Googling suggests it could be the input shaft or layshaft bearings.

Just wondered if anyone has any ideas of what it could be? If it is a gearbox bearing, how much would I be look at for getting my gearbox refurbished/repaired or perhaps I'd be better off replacing it with a second hand gearbox?

Any advice greatly appreciated! :thumbs:

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Capncol
Posts: 3761
Joined: Fri Nov 11, 2011 12:40 pm
Location: Reading & Southampton

Re: Grinding Noise in lower gears - gearbox or clutch?

Post by Capncol »

Most likely gearbox bearing (or two) Pricewise, it depends on if there are other issues once stripped, and if the clutch is worn, it would be false economy not to replace it at the same time.
The MA5 box is not a strong box, so if you go secondhand, the replacement may be as bad as the one you are replacing.
I would either repair existing box, or fit a service exchange.
Cheers Col.


206cc 1.6ltr (Wifes toy)
Mercedes ML (workhorse)
Corvette C3 (my toy)

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