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  #1  
Old 07-08-2005, 08:30 AM
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Question whistling sound

Just finished rebuiding to swap heads. The first time around I put down a thin
line of rtv on both sides of the valley pan before assembling the intake mani-
-fold this time I didn't, only on the four corners where the rubber ends are. I
now have developed a whistling sound @ idle, increasing an decreasing de-
-pending on accelleration or not........... I've checked for unplugged vacum
lines, everything appears o.k. is it possible I have an intake manifold leak???
Before I go ahead an remove the intake again is there some way for me to chk.
for leak without removing it??? Any suggestions would sure be appreciated
as i'm getting tired of tearing down an going up. Thanks again.
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  #2  
Old 07-08-2005, 10:56 AM
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Default Re: whistling sound

Take a can of carb. cleaner and spray it around the intake and vac. lines while the car is running. If the sound and or idle changes you've found your leak.
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Old 07-26-2005, 08:37 PM
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Default Re: whistling sound

Quote:
Originally Posted by corsair231
Take a can of carb. cleaner and spray it around the intake and vac. lines while the car is running. If the sound and or idle changes you've found your leak.

corsair231, Thanks for the tip! It worked perfect! INTAKE LEAK! I removed
it an applied silicone the way i did the first time, unlike what the package said
just for corners, i applied it all around the perimater.......... no more whistle!
Thank you very much CORSAIR231
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Old 08-08-2005, 12:28 PM
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Default Re: whistling sound

thanks for the heads up. sprayed starting fluid at idle running temp. an the
idle short up like a rocket on the right side of the upper intake {plenium}
mounting surface to lower intake. Went out an bought some rtv an new gas-
-ket applied rtv both sides of gasket let it cure..........WHISTLE'S GONE!!!!!!!
no more vacum leak.
thanks again,
A.R.
x1349x
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  #5  
Old 08-09-2005, 03:01 AM
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Default Re: whistling sound

No prob, glad I could help.
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