Rattle that goes away when I push the clutch in?
#1
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Rattle that goes away when I push the clutch in?
At idle my car will start making a metalicy rattle noise, coming from somewhere between where the driver sites and the enginebay. Its under the car and I havent had a chance to attempt to hunt it down. I noticed it goes away the second the clutch is depressed. I just purchased this car and its pretty modified. It has an ACT clutch that I know about. Am I just hearing the sheilding around the clutch/flywheel rattling or could it have a lightweight flywheel I dont know about (which I've heard can sometimes cause rattles like this)?
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Mine does it cold or hot. The car has some other rattles so I'll start hunting everything down. I may run into whats causing it in that process. If not, what damage would be done from this rattle? The 5th gear syncro is cracked already and the tranny shows signs of age (little tough to downshift sometimes and it'll grind for a sec if I shift real fast)
#6
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Originally Posted by Gamezilla
Mine does it cold or hot. The car has some other rattles so I'll start hunting everything down. I may run into whats causing it in that process. If not, what damage would be done from this rattle? The 5th gear syncro is cracked already and the tranny shows signs of age (little tough to downshift sometimes and it'll grind for a sec if I shift real fast)
this could also be your master/slave cylinders going out on you
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Originally Posted by obviousboy
this could also be your master/slave cylinders going out on you
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#8
built my own engine
could be the rotor bearings having excess clearnancing
when you apply clutch pressure, you basically pull everything on the eccentric shaft tighter....
so if the rotors are flopping, it will correct it
replace throwout/pilot bearing, grease them well, then try again...if it's the same noise, my money is on your engine internal bearings
when you apply clutch pressure, you basically pull everything on the eccentric shaft tighter....
so if the rotors are flopping, it will correct it
replace throwout/pilot bearing, grease them well, then try again...if it's the same noise, my money is on your engine internal bearings
#9
Lives on the Forum
It's just a trait of this car.
My car has had two motors, two pressure plates, two clutch release bearings, two pilot bearings, two clutch discs and two clutch forks. Always the same low, growling noise with the tranny in neutral and the clutch out. Push clutch in and it stops. I don't think the noise comes from the clutch; sounds like it comes from the input shaft of the tranny to me. It's not a worry.
Every FD I have seen does the same thing if you know what to listen for...
My car has had two motors, two pressure plates, two clutch release bearings, two pilot bearings, two clutch discs and two clutch forks. Always the same low, growling noise with the tranny in neutral and the clutch out. Push clutch in and it stops. I don't think the noise comes from the clutch; sounds like it comes from the input shaft of the tranny to me. It's not a worry.
Every FD I have seen does the same thing if you know what to listen for...
#15
Pretty much all manual cars have an audible amount of gear noise when you have your foot off the clutch (that goes away when you push the clutch pedal in). But it shouldn't be "clunky" sounding. A light flywheel can lead to some light clunky noises as the gears bang around from the lumpy idle, but that is normal.
My car recently developed a very disturbing, loud clunking noise in the tranny. It still worked perfectly, but it made a very disturbing noise. The noise goes away completely when you push the clutch pedal to the floor. The thread-starter may be experiencing the same thing. I decided to buy a used tranny as a replacement, since I think the problem is an input shaft or countershaft bearing -- $$$ for tranny rebuild to fix.
-Max
My car recently developed a very disturbing, loud clunking noise in the tranny. It still worked perfectly, but it made a very disturbing noise. The noise goes away completely when you push the clutch pedal to the floor. The thread-starter may be experiencing the same thing. I decided to buy a used tranny as a replacement, since I think the problem is an input shaft or countershaft bearing -- $$$ for tranny rebuild to fix.
-Max
#17
It's the ACT cuz I have it too!!!!
I thought it's some things else before. Was gonna have it check, but after this thread, won't do that
Thanks guys for asving me time and money
POM HB
I thought it's some things else before. Was gonna have it check, but after this thread, won't do that
Thanks guys for asving me time and money
POM HB
#18
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Originally Posted by Gamezilla
At idle my car will start making a metalicy rattle noise, coming from somewhere between where the driver sites and the enginebay. Its under the car and I havent had a chance to attempt to hunt it down. I noticed it goes away the second the clutch is depressed. I just purchased this car and its pretty modified. It has an ACT clutch that I know about. Am I just hearing the sheilding around the clutch/flywheel rattling or could it have a lightweight flywheel I dont know about (which I've heard can sometimes cause rattles like this)?
#19
Senior Member
Originally Posted by POM HB
It's the ACT cuz I have it too!!!!
I thought it's some things else before. Was gonna have it check, but after this thread, won't do that
Thanks guys for asving me time and money
POM HB
I thought it's some things else before. Was gonna have it check, but after this thread, won't do that
Thanks guys for asving me time and money
POM HB
#22
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Tranny has 120k on it. Guess there's no real point in fixing it. Tranny is showing signs of age and has the typical cracked 5th gear syncro. Its either rebuild it now or rebuilt it later. Might as well not rush
#23
I have the same problem too. I have an ACT clutch as well. The first ACT didnt do it at all. I'm not worried seems like everyone has a similar sound. Normally when the t/o bearing wears out you will get similar a noise.
#24
Perpetual Rebuilder
A bent/partially broken fork is easy to tell by the vibration in the pedal and a sudden shift in the point of clutch engagement but that would not account for no sound with clutch in so that is clearly not the problem. The pilot bearing would probably make noise with the clutch in or out now that I am thinking about it. So that leaves throwout bearing or transmission internals. My transmission has always made a quiet but audible noise in neutral with the clutch out - but if this is something new for you to hear then I would guess that is not the noise you are hearing.
And I agree diagnosing a noise in person is hard enough much less over the internet.
And I agree diagnosing a noise in person is hard enough much less over the internet.
#25
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I'm betting its a combo of both. The tranny may have a new clutch but its still all original and the syncro's are showing obvious signs that they're on their way out. If I shift slow I dont have any issues, but if I try and shift fast it wants to grind for a split second before going into gear. Also first gear I get a weird grumbly noise. Sounds like i'm dragging something almost. I'll just wait until it becomes bothersome.