Thread: How do you all test for an intake manifold air leak?
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Old 04-21-2021, 06:47 PM   #15
Y-Blockhead
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Default Re: How do you all test for an intake manifold air leak?
Quote:
Originally Posted by Neshkoro View Post
Blockhead, what does the unlit propane do? Does the engine speed up if there is a leak?
It sounds like an easy and clean way to test!!
Yes the propane is sucked into the intake thru the leak and the engine speeds up just like any of the other methods using a flammable gas or liquid. Just no mess. I have used those micro-butane torches also.

And as Synchro pointed out, you don't want to point it towards the carb inlet.
Last edited by Y-Blockhead; 04-21-2021 at 07:01 PM.
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