Vacuum Leak....
Thread Starter
Melting Slicks
Joined: Feb 1999
Posts: 2,473
Likes: 10
From: New Paltz, New York USA
Vacuum Leak....
I put a new crate motor in my 81 a few months ago. I would like to check around the intake manifold for vacuum leaks, can anyone suggest something to spray that will not make a mess of my new motor?
Instructor
Joined: Jul 2011
Posts: 142
Likes: 1
From: Fort White Florida
I have never tried it but, I have read that spraying water in a mist form works well. if your engine stumbles you have found your leak.
Le Mans Master
Joined: Mar 2008
Posts: 5,948
Likes: 72
From: Oxford MA-----You just lost the game!!!!
Team Owner
Joined: Jan 2006
Posts: 37,637
Likes: 3,118
From: Crossville TN
Carb cleaner is best. It is volatile and will provide more "fuel" to the intake charge if it is actually ingested when you spray it. Spray small puffs of cleaner directly at the gasket area you want to check out. Spray at one area, then wait to hear if the engine revs up a bit (or not). Then move to another area. Spray along both sides of the intake manifold to cylinder head gasket areas and around the base/throttle shafts of the carburetor.
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