clutch screech
Thread Starter
Melting Slicks
Joined: Apr 2002
Posts: 2,947
Likes: 0
From: North Aurora Il
clutch screech
Hi all,
I'm a c4 newbie and am wondering if what I'm hearing
is normal or not.
I sometimes notice a sceech type of sound when shifting.
Happens if engine has too many rpms when letting clutch out.
Another way to reproduce is to accelerate in 1st at ~50% throttle
and then press in clutch without immiediately letting off gas.
After a few days of driving I got to where I can shift without
this noise (ie get the rpms right). I'm just wondering if this is normal.
I just got out of a mustang, which had a considerably more forgiving clutch.
tia
Ken
ps car is a 96 lt4; bone stock
I'm a c4 newbie and am wondering if what I'm hearing
is normal or not.
I sometimes notice a sceech type of sound when shifting.
Happens if engine has too many rpms when letting clutch out.
Another way to reproduce is to accelerate in 1st at ~50% throttle
and then press in clutch without immiediately letting off gas.
After a few days of driving I got to where I can shift without
this noise (ie get the rpms right). I'm just wondering if this is normal.
I just got out of a mustang, which had a considerably more forgiving clutch.
tia
Ken
ps car is a 96 lt4; bone stock
Race Director
Joined: Sep 2000
Posts: 13,985
Likes: 0
From: Hillsborough NH
Cruise-In V Veteran
Cruise-In VI Veteran
Re: clutch screech (kwd1)
I have a similar deal when shifting from 1-2 or 2-3 sometimes. It was mostly when i first started to drive the car and wasn't used to it. I rarely have any noise now.
Its lower than a screech though.. :confused:
Its lower than a screech though.. :confused:
Safety Car
Joined: Aug 1999
Posts: 4,862
Likes: 118
From: Texas
Re: clutch screech (devilfish)
Here's a tip regarding clutch noises:
If it squeels when you push the clutch in or begin letting it out, it's the pilot bushing.
If it makes a grinding noise that goes away when you push the clutch in, it's the throw out bearing.
[Modified by RatRacer, 3:20 PM 5/20/2002]
If it squeels when you push the clutch in or begin letting it out, it's the pilot bushing.
If it makes a grinding noise that goes away when you push the clutch in, it's the throw out bearing.
[Modified by RatRacer, 3:20 PM 5/20/2002]
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Thread Starter
Melting Slicks
Joined: Apr 2002
Posts: 2,947
Likes: 0
From: North Aurora Il
Re: clutch screech (RatRacer)
Ratracer,
I don't think its the pilot as you describe. It's not every
time the clutch goes in or out, only when the rpms are too
different from what they will/would be with the clutch fully
engaged.
It sounds to me like its the flywheel spinning on the clutch disk
briefly.
thanks
Ken
I don't think its the pilot as you describe. It's not every
time the clutch goes in or out, only when the rpms are too
different from what they will/would be with the clutch fully
engaged.
It sounds to me like its the flywheel spinning on the clutch disk
briefly.
thanks
Ken
Safety Car
Joined: Aug 1999
Posts: 4,862
Likes: 118
From: Texas
Re: clutch screech (kwd1)
That's when the pilot bushing does it's job. It is the bearing that couples the engine rpm and the tranny rpm. When the pilot bushing starts to give out it will squeel occasionally when there is a large differential between the rpm of the engine and tranny. When it gets real bad it will squeel any time the clutch is pushed in.
Fortunately the pilot bushing is only loaded during shifts or when you are idling in gear. It is not very critical and you can postpone replacing for a while until it starts squeeling everytime you use the clutch.
I garranty you that it is the pilot bushing.
Fortunately the pilot bushing is only loaded during shifts or when you are idling in gear. It is not very critical and you can postpone replacing for a while until it starts squeeling everytime you use the clutch.
I garranty you that it is the pilot bushing.
Thread Starter
Melting Slicks
Joined: Apr 2002
Posts: 2,947
Likes: 0
From: North Aurora Il
Re: clutch screech (RatRacer)
Alright dude, thanks for the info. I got the
vette from dealer and it came with a 2 month warrenty,
so I'll have this looked at. Many thanks
vette from dealer and it came with a 2 month warrenty,
so I'll have this looked at. Many thanks
Race Director
Joined: Feb 2002
Posts: 11,268
Likes: 14
From: Honolulu, HI
Re: clutch screech (kwd1)
Holy Sheeeeet what a small world, I live in North Aurora too! (as you probably saw from my profile) Orchard Crossing subdivision right across the street :lol: :lol: :lol:
Cool! now I have someone to cruise with :cheers:
Cool! now I have someone to cruise with :cheers: