| Derby | -- 11-02-2018 @ 2:37 PM |
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New to the Forum. I am starting a modified engine rebuild using a 8BA block. The H & H book being used as a reference shows the internal cam/valve valley as painted the correct red. Is painting these internal surfaces a normal and recommended practice?
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| kubes40 | -- 11-02-2018 @ 3:46 PM |
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No, it is not. Painting internally is typically for engines that need OPTIMAL oil return. In other words NOT a flathead unless you are building for the salt flats. Mike "Kube" Kubarth
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| Derby | -- 11-03-2018 @ 10:04 AM |
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THANKS, No salt flats for me.
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| Derby | -- 11-03-2018 @ 10:07 AM |
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THANKS, No salt flats for me.
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| Bill E Bob | -- 11-03-2018 @ 12:07 PM |
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I thought cast iron castings (such as engine blocks) were painted inside with glyptal to prevent lubricants from seeping through the porous castings? Obviously I'm missing something here.
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| 3w2 | -- 11-03-2018 @ 4:37 PM |
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Never met a flathead engine block with a casting porous enough to sweat oil, but '32 aluminum oil pans sure do and glyptal on the inside of the pan puts a stop to it.
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| wmsteed | -- 11-19-2018 @ 8:24 AM |
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It has been my understanding for many years that the oil in an engine is over 50% of the cooling. The splashing around of the oil onto the internal portions of the block, etc., then draining down to the pan carries away a lot of heat. It has also been established that the best color to paint an engine is "black" because it has the highest heat loss. Of course OEM engines have been painted about every color of the rainbow, the general purpose being for engine identification Bill 36 5 win delx cpe
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