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PostPosted: Thu Aug 27, 2009 2:47 pm 
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If an engine over heats, will the excess heat ruin valve springs?


Last edited by Cheetah on Thu Aug 27, 2009 2:52 pm, edited 3 times in total.

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PostPosted: Thu Aug 27, 2009 3:09 pm 
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Location: Fayette City,PA
Year and Trim: 1990 Bonneville LE
Cheetah wrote:
If an engine over heats, will the excess heat ruin valve springs?


No. The temp needed to make the spring loose it's temper is much higher than anything the engine can generate, unless it is on fire.

Mostly an overheat creates a leaking head gasket, or at worst the piston seizes in the bore and then breaks up. This is about the only overheating failure that results in valve or spring damage (Valve getting hit with a chunk of molten aluminum, knocks the retainers out, valve drops, and spring rattles around in the top of the valve cover...assuming the engine keeps running long enough after dropping the valve.)

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Last edited by clm2112 on Thu Aug 27, 2009 3:17 pm, edited 1 time in total.

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PostPosted: Thu Aug 27, 2009 4:58 pm 
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Cool, thanks :)


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