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Discussion Topic:
Engine Internal Paint
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Derby |
11-02-2018 @ 2:37 PM
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Member
Posts: 19
Joined: Nov 2018
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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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Senior
Posts: 3406
Joined: Oct 2009
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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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Member
Posts: 19
Joined: Nov 2018
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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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Member
Posts: 19
Joined: Nov 2018
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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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Member
Posts: 85
Joined: Apr 2017
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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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Senior
Posts: 842
Joined: Oct 2009
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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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Senior
Posts: 613
Joined: Oct 2009
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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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