Ford 9N, 2N & 8N Discussion Board |
Re: Valve guide seals
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Posted by Gaspump on June 03, 2004 at 09:49:39 from (168.192.9.171):
In Reply to: Valve guide seals posted by Ronin on June 03, 2004 at 09:16:58:
That topic flies around this board all the time! No there is not a problem putting seals on all guides, they were that way from the get go. The guides are in the block so they are block temp and won't burn, (burning is a common misconception) I have taken engines down with seals on and off the exhaust guides and see no unusual damage to the seals when installed on exhaust guides. Consider, which would you consider the worst, crankcase fumes seeping by the guides to the intake or exhaust gas seeping to the crankcase? Actually the amount of either occuring to a damaging point is unlikely. All gasket sets come with 8 so why not install 8? Cheap protection and saying they will burn off the exhaust guides is another old wifes tale often perpetuated on this board! Now if the engines old guides are badly worn you could get enough seepage to cook the seals but even if that occured you likely are replacing the valves and guides (or should have)anyway! Go with the seals on all.
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