Bob Oswald wrote:
>
> On the subject of thermostats: When I took a look at mine (which is
> supposedly in a 24,000 mile from new 1961 poly 318) it had an obsolete
> thermostat (Stant S-370H 180 degree). I had already bought a replacement
> Motormaster unit from a Canadian Tire store in Alberta, and was surprised
> how much smaller the new thermostat was than the old. Especially in the
> hole diameter and amount of gap when heated in a pan of water. At NAPA I
> found the newer recommended Stant was also much smaller than my old
> thermostat. I then simply hunted through the thermostats on the rack,
> looking for one with the same outside diameter but larger opening. I found
> one (Stant 35127 170 degree) that has about the same opening as my
> original, and in fact even larger potential flow, because the spring and
> its shaft are so much longer. I was concerned that this might be too long,
> but I found that there's plenty of room for it in the engine, and it works
> really well. In fact, you can see that sucker kick right in there as the
> engine warms, by the needle movement on the temperature gauge. I thought
> I'd share this with other poly owners in case thermostat choice has been
> problematic for anyone, or if overheating has been an issue.
>
> -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
> Vote now for the 2003 Calendar vehicles!
>From my understanding, the High performance thermostats wer more of this
nature. Big hole for the main flow, and if the thermostat company was on
the ball there should be a small hole in the unit for air bubbles to
pass through.
--
Paul Holmgren
Hoosier Corps #33, L-6
2 57 300-C's in Indy
-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
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