Clutch scraping noise

[paulca]

Originally Posted by 8 six

I see what you mean, but this noise is coming from the clutch itself only when pressing it down with load on it. If I let the gas go completely before beginning the clutch pedal's journey down, there's no noise. I guess the engagement point is just so high?

I may have miss-understood you, but why would you have the accelerator applied when up-shifting after you put the clutch in? That will just cause clutch wear and increase the RPM adding more syncro wear on the shift and more clutch wear again on release.

Unless you are doing power shifts or hot shifts which will feck your clutch, the only reason to have pedal on when clutching it, is to blip on a downshift or in some big diesels to keep the rpm up as they take too long to rev back up if you change slowly.

If you let the accelerator off too soon though you'll get a forward jolt. The trick is to do both simultaneously, just as you lift off the throttle (completely), slip the clutch. You should already have the shifter "pre-loaded" in the direction of travel required so it will pop out into neutral, into the next gear, then bring the clutch back up to the bite point and apply throttle as you smoothly release the clutch.

Remember... you don't need a clutch to change gear. The syncro's work fine on their own as long as you are passing the correct RPM. Upshifts are therefore the easiest. Just lift your foot off the accelerator with a gently preload on the gear stick. As the transmission passes the "neutral" point with no load the gear will pop out. Immediately offer it to the next gear ups syncro. DO NOT FORCE IT IN! Maintain gentle pressure and as the (falling) rpm passes the correct rpm for the gear it will pop in. Then accelerate. Down shifts are the same, but you either have to rev match, or blip the rpm up above the gear and apply the same technique as upshifts.

[scionfrs2014]

Originally Posted by VenomRush

for mine it almost sounds like a horn, dont know what it is and i havn't got it checked out cuz my car is running fine at 38kmiles now

edit: it doesn't happen all the time, and it has happened from a cold start and when the engine is warm

My car has the same noise. Originally I thought the horn sound was given by someone until I went for a drive on a quiet country road recently. It does not happen all the time. Do you have an update? Many thanks.

[VenomRush]

Originally Posted by scionfrs2014

My car has the same noise. Originally I thought the horn sound was given by someone until I went for a drive on a quiet country road recently. It does not happen all the time. Do you have an update? Many thanks.

i dont, but i recently gave a friend a ride and asked him about it and he had mentioned it sounded like the flywheel

[scionfrs2014]

Originally Posted by VenomRush

i dont, but i recently gave a friend a ride and asked him about it and he had mentioned it sounded like the flywheel

It seems that if I fully release my gas peddle before I press clutch, it will be fine. If I release my gas peddle millisecond slower when I press clutch, the horn sound may come out. Just a thought, but still not sure.

[Caspeed]

Could you be hearing the shifter buzzer?

[2much]

does it sound like a car horn? my clutch sounds like a car horn

[VenomRush]

Originally Posted by scionfrs2014

It seems that if I fully release my gas peddle before I press clutch, it will be fine. If I release my gas peddle millisecond slower when I press clutch, the horn sound may come out. Just a thought, but still not sure.

i also realized this car is drive by wire, so there is a slight delay in when the gas is pressed compared to a car thats not drive by wire

[Tcoat]

Originally Posted by 2much

does it sound like a car horn? my clutch sounds like a car horn

Too lazy to find the thread but some where on here is info that the "car horn / goose honk" has been linked to the throw-out bearing. If it happens all the time it is best to take it in and have it checked.

[chaoskaze]

our car is drive by wire? O.o Don't feel like it to me..

[Tcoat]

Originally Posted by chaoskaze

our car is drive by wire? O.o Don't feel like it to me..

'Tis true

[2much]

Originally Posted by Tcoat

Too lazy to find the thread but some where on here is info that the "car horn / goose honk" has been linked to the throw-out bearing. If it happens all the time it is best to take it in and have it checked.

it's been happening since day 1. Only when everything hasn't warmed up yet. Do you think theres a long term problem or its just an annoyance? 'Cause I don't care too much about the noise

[Tcoat]

Originally Posted by 2much

it's been happening since day 1. Only when everything hasn't warmed up yet. Do you think theres a long term problem or its just an annoyance? 'Cause I don't care too much about the noise

From what I have read (I am not an expert on the subject) it can eventually lead to throw out bearing failure.
But... as long as everything seems to be working ok otherwise I would wait until closer to the warranty being up to have it fixed.

[2much]

Originally Posted by Tcoat

From what I have read (I am not an expert on the subject) it can eventually lead to throw out bearing failure.
But... as long as everything seems to be working ok otherwise I would wait until closer to the warranty being up to have it fixed.

how helpful. and NOT unhelpful.

[Tcoat]

Originally Posted by 2much

how helpful. and NOT unhelpful.

???????????