Hello Wayne!
> About gaskets: Is it better to use the NOS stuff from Nissan, or
> aftermarket? I have the feeling that the old stuff gets kinda dry and
> brittle after 20 years. On the other hand, aftermarket stuff may be NOS
> as well.
>
> Having a gasket in hand, do you use gasket sealer of some sort? If so,
> what? I tried Permatex #2 on the thermostat housing (previous leak) but
> I'm not sure it helped any.
For problem coolant leaks, I have actually had very good luck with the
Permatex "Form-a-gasket" stuff. (There are 4 or 6 different kinds, I've
only used the blue stuff in the silver tube - I don't remember the particular
flavor ;-) I even used it to seal up the heater in a hot tub (don't ask!)
that had been badly warped because it was left to freeze full of water
through the winter - worked great! That was a couple years ago, and if it
has been able to stand up to the heat and chlorine, I think it will work
just as well on your water pump. Oh - BTW the heater housing was alloy,
and the heater plate was steel.
Pat Vilbrandt John Fluke Mfg. Co., Inc. Everett, Washington USA
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