Thread: Idle vacuum - why only 10 inches?
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Old 09-11-2016, 09:46 PM   #54
rsgt
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Join Date: Apr 2009
Location: Lowell AR
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Re: Idle vacuum - why only 10 inches?
Try adjusting the valves with the engine running. Go 1/4 to 1/2 turn pass clicking. I have seen vacuum increase when they where tighter that that.
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