Danger from RTV?? Re: <VV> heating the oil

[FrankCB at aol.com]

Bob and Bob,
    As I understand it, silicone rubber RTV used in sealing any engine parts 
can have a BAD effect on any oxygen sensor installed in the exhaust system.  
So, if you've got EFI or even intend to install it later, it would be wise to 
avoid using any silicon containing material that can ultimately end up fouling 
the O2 sensor used to control the EFI.
    Regards,
    Frank Burkhard 

In a message dated 2/5/05 9:02:06 AM Eastern Standard Time, 
dryenko@mindspring.com writes:
Finally , on my race engines , I have seen a measurable oil temperature
reduction by coating the outside of the pushrod tubes with red high
temperature RTV silicone rubber on at least the outer 1/2 of the tubes, as a
insulating medium.
I did this in the late seventies when I was racing my D/Production Yenko
Stinger , and on most performance engines I have built since then.
I would recommend doing it routinely on any High Performance Corvair Engine.
Bob Coffin