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Registered
Join Date: Sep 2001
Location: Mt Sinai , Long Island N.Y.
Posts: 4,617
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It is very normal to have lower than spec compression on a fresh engine. Even more so if the engine was tested cold. However it would be hard to guess since we could be talking about your lawnmower going by your description. In any case if your compression is even within 5-10% I would suggest that you have no problems there. If some are lower by a larger margin then you should do a leakdown test which may show a tight valve.
Kurt Williams
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Never drive faster than your gaurdian angel can fly.
82 SC w/965S eng and G50 6:1 hp/w ratio
72 911t 2.6 twin plug and 72' 911t 57k orig 1 own miles
65/66 912 1 owner 76k orig
01' Aston Martin DB7 V12 Vantage Coupe 6spd
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