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Old 06-11-2011, 11:20 PM
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Overdriv Overdriv is offline
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Cleaning the casting flash out of the block is always a good idea. Instead of smoothing the cast surfaces, paint them with Glyptol. Glyptol not only make for a slicker surface for the oil to return, but also seals the casting so minute pieces of sand or metal won't shed. I is also good to epoxy screens in the drain back holes. If you break something in the valve train it won't end up in your oil pump, etc.
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