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How much Compression?

   
Old Mar 27, 2005 | 05:28 PM
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Piffery1
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Question How much Compression?
I have a virgin '83 460 (75k actual) in an F350 with auto trans. I just checked the compression and have 120 +/- 2.5 psi on all eight cyl. Is this low? What is normal? Virtually no oil consumption between 3000 mi. changes on 10W40.
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Old Mar 27, 2005 | 06:58 PM
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From: iowa
Don't worry so much about the number as that all the cyl are within about 10% (max) of each other you are within 2% so you are good to go.
 
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