little man with jackhammer sound help!!!!
#1
T-bird painter
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Location: nellis airforce base, las vegas
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little man with jackhammer sound help!!!!
alright guys...ever since i went single...i have had this "little man with a jackhammer" sound coming from the turbo...there is no signs of exhaust leaks or anything...all gaskets are in place and all is tightened down. it sounds like it is the turbo itself that is making the noise. does any one else have this noise??? turbo is a garret 62-1...please help...its driving me crazy
#4
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is the idle smooth aside from the sound? are three any shaft play, or signs of wear on the fins of the compressor and turbine?
as a longshot.... when was the last time you changed your spark plugs? very fouled up plugs and bad ignition can sometimes sound like a jackhammer.
did you just slap the turbo on and not changed the programming of your computer? this happened to me because when my to4r was installed the programming on the power fc was not changed and it instantly fouled up the plugs moments after startup.
as a longshot.... when was the last time you changed your spark plugs? very fouled up plugs and bad ignition can sometimes sound like a jackhammer.
did you just slap the turbo on and not changed the programming of your computer? this happened to me because when my to4r was installed the programming on the power fc was not changed and it instantly fouled up the plugs moments after startup.
#7
It has been my experience that the tubular manifolds let some sounds out that are not as audible with the heavy cast iron manifolds. This might be what you are experiencing as well. I wish there was a good way to quiet things down again, but I don't know what, if anything, will help.
-Max
-Max
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#9
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Originally Posted by maxcooper
It has been my experience that the tubular manifolds let some sounds out that are not as audible with the heavy cast iron manifolds. This might be what you are experiencing as well. I wish there was a good way to quiet things down again, but I don't know what, if anything, will help.
-Max
-Max
#10
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well if a cast manifold will help...ill just buy an hks cast...right now ive got a shitty ssautochrome one...which has held up pretty good but...dont wanna take any chances...thanks guys...oh and impact tell me how yours comes out
#14
Originally Posted by impactwrench
Oh, by the way, I got my A&P back in 1979. Probably only you knows what that is
I have thought about header wrap. It should definitely help with the sound, but I am concerned about it cracking or eroding the manifold. Ceramic coating it first might help, but I've heard that it doesn't last long on the turbo manifold. I wonder if a looser-fitting blanket might offer some sound abatement without hurting the manifold.
-Max
#15
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A&P ...of course....thats how ya make the big bucks...what work did ya do impact? i am a structural maintenance troop...A&P dont really help me out in military but once i get on the outside...woo hoo
#16
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Originally Posted by maxcooper
Grocery store? There were a bunch of A&P grocery stores where I grew up (SE Michigan).
I have thought about header wrap. It should definitely help with the sound, but I am concerned about it cracking or eroding the manifold. Ceramic coating it first might help, but I've heard that it doesn't last long on the turbo manifold. I wonder if a looser-fitting blanket might offer some sound abatement without hurting the manifold.
-Max
I have thought about header wrap. It should definitely help with the sound, but I am concerned about it cracking or eroding the manifold. Ceramic coating it first might help, but I've heard that it doesn't last long on the turbo manifold. I wonder if a looser-fitting blanket might offer some sound abatement without hurting the manifold.
-Max
you're right.... the ceramic coating doesnt last long, im not sure if its the smooth finish of the ss autochrome manifold or the excessive heat, but mine started to crack and flake off after 1000 miles or so. as soon as it gets warmer out, im gunna wrap them with exhaust wrap also to dampen the noise.
oh yeah.... hood lining helps a lot when it comes to lowering the sound coming from the engine bay.
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