exhaust manifold noises
Thread Starter
Burning Brakes
Joined: Nov 2000
Posts: 810
Likes: 4
From: Austria
exhaust manifold noises
ive a clicking sound under my car, that im fighting against since i bought it..
checked everything, like compression, spark plugs, injectors, bearings, aso, all the ususal clicking stuff..and everything ok..
today, i tested again, and narrowed the problem down to the exhaust
im pretty sure, i´ve no exhaust leaks, and (stock) manifolds are not broken
also, i know i have a different cam in it, not stock, because ive a lope at idle,
and also when i take off its not the strongest, but when rpms comes up to 2000 it starts pulling like a beast...some passengers and stop light competitors knows this :D
can this cam cause clicking noises in the downpipes??
answers would be nice
thank you
checked everything, like compression, spark plugs, injectors, bearings, aso, all the ususal clicking stuff..and everything ok..
today, i tested again, and narrowed the problem down to the exhaust
im pretty sure, i´ve no exhaust leaks, and (stock) manifolds are not broken
also, i know i have a different cam in it, not stock, because ive a lope at idle,
and also when i take off its not the strongest, but when rpms comes up to 2000 it starts pulling like a beast...some passengers and stop light competitors knows this :D
can this cam cause clicking noises in the downpipes??
answers would be nice
thank you
Thread Starter
Burning Brakes
Joined: Nov 2000
Posts: 810
Likes: 4
From: Austria
Re: exhaust manifold noises (BAM92)
no, i dont mean the clicks of a hot exhaust, i mean the clicks when engine running..clicking like firing pulses..
as i said no leak in the exhaust, just if this noise can be caused by a cam, ??
as i said no leak in the exhaust, just if this noise can be caused by a cam, ??
Team Owner
Joined: May 2002
Posts: 24,337
Likes: 25
From: San Diego , CA Double Yellow DirtBags 1985..Z51..6-speed
Re: exhaust manifold noises (corvette90)
My vette's exhaust sounds like a John Deere. Is that what you're talking about? I've pulled the entire exhaust off twice, replaced the header gaskets, and have had no improvement.
This is with a stock cam. It's really getting on my nerves. Happens under slight load at 2000-2300 rpms. Perhaps its the AIR system that has a leak. :lurk:
This is with a stock cam. It's really getting on my nerves. Happens under slight load at 2000-2300 rpms. Perhaps its the AIR system that has a leak. :lurk:
Thread Starter
Burning Brakes
Joined: Nov 2000
Posts: 810
Likes: 4
From: Austria
Re: exhaust manifold noises (CentralCoaster)
hi..THAT is what i´m talking about
mine goes from idle, and when i rev the enigne i cannot hear it anymore..also i have a very aggressive sound from left and right header area when i accelerate..no knocking or pinging, just aggressive :D
but...when i idle, or under crusing conditions i have the clicking noises...
maybe we must learn to live with them... :confused:
mine goes from idle, and when i rev the enigne i cannot hear it anymore..also i have a very aggressive sound from left and right header area when i accelerate..no knocking or pinging, just aggressive :D
but...when i idle, or under crusing conditions i have the clicking noises...
maybe we must learn to live with them... :confused:
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Safety Car
Joined: Feb 2002
Posts: 4,212
Likes: 10
From: Sun City West Az
Re: exhaust manifold noises (corvette90)
i have new wires in it, about a year old..do you mena, spark is jumping around outside??
also plugs are new...
also plugs are new...
Team Owner
Joined: May 2002
Posts: 24,337
Likes: 25
From: San Diego , CA Double Yellow DirtBags 1985..Z51..6-speed
Re: exhaust manifold noises (ittlfly)
I had a plug wire arcing to the plenum right by the distributor,
but this was making a distinct 'snap' type noise.
The exhaust tick is more muffled, but still high pitched.
but this was making a distinct 'snap' type noise.
The exhaust tick is more muffled, but still high pitched.
