Quote:
Originally Posted by 1931 flamingo
I would think a spray can of WD40 would be A LOT SAFER! JMO
Paul in CT
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Paul, I agree, WD40 use to work good for such tests and was really some wonderful stuff. They changed the formula and WD 40 is no longer flamable. Now that WD is no longer flamable it will no longer let the engine speed up when sprayed over a vacume leak. When I last tried is on my 29 strip down it ran down the side of the valve cover and left dark ugly streaks from around the manifold on my purdy fresh painted engine.
Though it is very flamable I think that starting fluid works best, it evaporates quick and won't stain the engine. If there is a vacume leak it will tell the story right now.