clutch noise

[Mr Morlock]

fron another site
# If the noise is only noticeable at idle, does it change when the clutch pedal is depressed? A change would probably indicate a problem with the release bearing or pilot bearing. To find out what is causing the noise, set the parking brake, place the vehicle in neutral and start the engine.

# If you hear growling or grinding noises when the clutch is engaged, the cause is the transmission input shaft bearing.

# A squealing sound that occurs when the clutch pedal is depressed and held is usually caused by a bad pilot bearing or bushing.

# A chirping noise that intensifies when the pedal is slowly depressed would indicate a bad release bearing.

# If you hear chirping while idling in neutral and the noise goes away when the pedal is slowly depressed, the fork/pivot ball contact point is making the noise.

[silvermiata]

i have a problem with my gearbox for the last 2 years, it whines when i start the car and clutch is depressed (i always get confused from the terms depressed, engaged, not engaged. when i mean depressed, i mean my feet are off the clutch pedal), also hight pitched noise like supercharger in 1,2 and 3rd gears when the revs are high... it is a bearing problem of the gearbox, but it does not effect the driveability of the car. it is annoying tho..

if anyone has done the bearings of the gearbox (input shaft or counter shaft bearings), is it a hard job? (assuming that the person is competent enough to change the clutch /timing /water pump etc... )

[manga_blue]

Gearbox re-building is a special skill. There are many tricks and specialised tools. Maybe gearbox rebuilders are probably not the sort of people you'd put on your party list if you want to make the social pages.

If you're not into major turbos then few things seem to go really wrong with our gearboxes - just the odd worn bearing, leaking seal or dodgy synchro. For around $4-500 plus removal and re-fitting (if you don't do that yourself) then you'd expect to get the 5 bearings and 2 main seals replaced plus minor adjustments. This should feel like a new gearbox. If you do it yourself then you'd cut the cost down to $150 or so and the probability of having a decent gearbox down to around 10%.

[silvermiata]

hmm see the problem is i dont think anyone would open the gearbox for 4-500 dollars.. people i have spoken to so far are talking about around a grand for the reconditioning... maybe i will do an experiment on it to see if i can fix, if i can't then get a second hand one (as they go for around 4-500 mark).. time and space limitation is a big problem though

[Mr Morlock]

gearbox repairs are not really a job for amateurs in my opinion. If money is an issue removing the box would save quite an amount of $$.If a bearing is noisy it is damaged and possibly shedding metal fines in the g/box. Incidentally "depressed" is when the pedal is pushed down- just the same as people suffering from depression feel "down"