Quote:
Originally Posted by Frank Lee
Valve covers get a lot of heat from being doused by hot oil. Some of them are even finned to help reject more heat- not just for appearances.
Excess heat can weaken valve springs. If the engine tends to run really hot I would be wary of this and monitor temps closely. If you p&g a lot this could really keep the heat in.
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Thank you Frank. I had counted on the cooling system keeping everything within safe temperature limits. However I hadn't considered the requirements of valve springs and their environment.
Do you think the insulation is flat out unwise? Only safe if coolant remains below some particular temperature?
Based on your note above, I'm considering removing the insulation. or maybe just remove it from the valve cover's forward face, which is located directly above the exhaust ports and exhaust manifold gasket. Does this make sense?
Thanks again for your input.