Can I use a vacuum gauge?

[PKRWUD]

hey, in all fairness, i just read this thread for the first time, and I knew what you were referring to from your last PM, and I still giggled. You have to understand, vacuum is only created when the engine is spinning. A problem that some people have is an internal vacuum leak at one of the intake ports. There is no way to check it, except with a vacuum gauge, and that's what it sounded like you were asking. BUT, in your defense, yes, you would be able to check it without the engine running. In fact, you have to disable the ignition to keep it from running when you do the test (for an internal vacuum leak).

What you are asking wouldn't work with a vacuum gauge because the vacuum is inside the manifold, not underneath it. What I don't understand is how there could be such a large gap.

Do what Drew suggested, and post the results. A solid bead of silicone should have worked fine.

Take care,
~Chris