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Old 09-27-2008, 09:41 AM
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SBC Lifter/pushrod question after removing intake

Removed intake to investigate potential internal vacuum leak that was sucking oil from lifter valley into intake ports (previous post on major oil blowby problem); anyway the intake ports were bone dry. However I did notice (4) raised lifters which I was unable to twist pushrods and another partially raised lifter that I was able to twist the pushrod. Is this of concern ? Pics below (left and right side).....any info would be of great help. thanks.



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Old 09-27-2008, 09:51 AM
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That is normal. Those are the camlobes that are currently either opening or closing a valve. The reason you can't spin the pushrods with your finger(s) is the fact they are currently "under load". -Jim
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Old 09-27-2008, 10:01 AM
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Thanks Jim, I feel like an idiot. I know they were under load but I guess I got mistaken by reading another article stating that if you can't spin the lifters they were bent.

Now to investigate valve guides as potential souce of oil consumption
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Old 09-27-2008, 11:18 AM
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Don't forget to change your oil after you button things back up. Looks like You have some coolant that snuck into your crankcase.
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