<VV> White pushrod tubes
BobHelt at aol.com
BobHelt@aol.com
Fri Feb 4 20:12:55 EST 2005
In a message dated 2/4/05 12:49:00 PM US Mountain Standard Time,
BigD@davemorris.com writes:
> 5. Are the pushrod tubes normally a major source of oil leaks in a Corvair?
> 6. Would it be smart to find out what others have done to reduce oil leaks?
>
>
>
Dave,
Actually the pushrod tubes never leak on Corvairs. The problem is generally
centered on the FACTORY pushrod tube SEALS that leak. And the generally
accepted fix is to replace these seals with those made of Viton. This cures the oil
leaks from these areas. So no other correction is usually required for the life
of the engine if the seal replacement was done correctly.
Now painting the pushrod tubes white is an attempt to lower the temperature
of the tubes, and thus the seals in an attempt to lenthen the life of the
seals. This may help some, but may not have the effect some think because there
have been no known tests run or data published showing an improvement in seal
life.
If anyone has any data, please share it with us all.
Regards,
Bob Helt
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