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10-09-2002, 07:43 PM
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400 SB help
I just purchased a Camaro with a sb 400 in it. Supposed to be a fairly new overhaul, but blows a lot of blue smoke when started and also blows some oil from the tailpipes when cold. Compression checked out fine. Has a bit of a cam,(not sure what). Any ideas on timing as well.
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10-09-2002, 07:50 PM
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Sounds like it could be valve guide wear that wasn't dealt with or poor seals, either one would cause similar symptoms especially with a little extra camming.
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10-09-2002, 08:02 PM
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Another thing I should have mentioned is it has a high output oil pump (65lbs) and a deeper oil pan. It has a chrome dipstick, but with the deeper pan does it need a different dipstick? Could I be overfilling it and causing the problem?
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10-09-2002, 08:08 PM
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The stock dipstick should be o.k. for level, it will still set at the same level below the crank ( the important part when talking oiling problems),if the higher pressure pump was creating the problem I think it would constant instead at the periods you mentioned. It could also be rings not fully seated if the rebuild was a re-ring (with no bore job)and is still fresh.
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