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#3 (permalink) |
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Not So Newb Anymore
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15-17 in hg is normal IIRC. Depending on elevation the number will vary slightly. A;so if the engine is older or in need of a valve adjustment the number could be less. As long as the reading is steady the condition of the engine is usually fair. The rest of the story can be told by a leakdown and compression test. Another factor in engine vacuum is the camshaft the duration of the cam can cause thew vacuum readings to be lower than normal. Stock shouldn't have any issues. HTH
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