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Old 09-09-2016, 12:19 PM   #39
davepl
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Join Date: Aug 2006
Location: Redmond, WA
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Re: Idle vacuum - why only 10 inches?

They actually did do a smoke machine test on this one, but it was into the valley/crankcase to diagnose a cam gallery plug leak. That part, the crankcase, was perfectly sealed and tight, no leaks (other than the plug).

Can they use it to smoke out the other direction, like intake-to-exhaust-crossover leak, or intake to atmosphere?
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