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Old 01-18-2008, 11:01 AM   #1
christians1600
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Join Date: Jan 2008
Location: lancaster sc
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Default oil on plugs????

1987 32ft gulfstream chevy 454 engine 49,000 miles, i changed the plugs today and noticed a tad bit of oil on th back 2 plugs, nothing major the engine runs great no smoke only if it sits and then a puff at start up,should i worry and should i change my oil to another weight?? i noticed another forum 454's at 50,000 miles the back lifters get starved for oil.......just trying to stay ahead of any problems..thanks
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Old 02-01-2008, 09:40 PM   #2
rdlamb
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I'd do a compression test on the engine. The back cylinders wear somewhat more than the front due to increased heat, and decreased water & oil flow. The back cylinders may be up to 10% less compression than the front ones.

If you get less compression, then squirt a little oil into the cylinder and see if the compression goes up. It that happens, you may need an engine rebuild.
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Rick



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