I have always used permatex blue (silicone) to tack the gaskets for
WPs, and never had a problem. I know others use the permatex red
with no problems. Permatex blue is hard to find now. It seems that
they are pushing the red.
I believe what Peter is referring to is the old brown non-silicone
form a gasket. I think that is Permatex #2, but I have not used that
for 30+ years, since the blue stuff came out.
Don't use RTV on the pump, use permatex of some sort, else it will
surely leak. RTV won't stick to anyhthing with glycol on it, I
found this out the hard way on my old Audi fox -- after the third
water pump gasket blew out I used liquid permatex and it was still
holding 4 years later when I sold it.
Peter
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