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General Tech Water Wetter, does it work?

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Get a copy of the Stant catalog. Most stores will let you look at theirs, if you ask someone that knows how to read; or you can download it on-line
https://www.stant.com/files/9314/0979/5335/2012_Passenger_Light_Truck_Catalog.pdf

Near the back of the radiator cap section, it should have illustrations of the various caps available, which usually includes the pressure and reach for each cap. For example, a 10308 is a 4 psi cap for 3/4" reach; while 10205 is 4 psi for a 1" reach. Armed with the Stant number, you can either search for an application (eg 10308 fits 1954 Chevy Bel Air with the 235 "stove bolt" 6) and try to buy at FLAPS from the application; or just go to Amazon or Summit and order directly by Stant part number.
https://www.amazon.com/Stant-10308-...F8&qid=1448482611&sr=8-1&keywords=stant+10308
 
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Originally Posted by Merlin63Tr4
A bellows type thermostat can be affected by excessive radiator pressure.
Check your radiator cap pressure, should be 4 PSI for Tr3, 7 PSI for Tr4.

M.






Thanks guys!
that fixed it. Took Randall's advice and found an older guy at NAPA that could think out of the box.
He found a NAPA Balkamp #703-1543; 5psi, with the right dimensions.
now running at a shade higher than 185. (About a 15 dg. reduction)The puller comes on intermittently, ( as opposed to coming on and staying on).

never would have figured that out on my own.
 

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Glad I was of some help.

Happy Thanksgiving.

M.
 
quote_icon.png
Originally Posted by Merlin63Tr4
A bellows type thermostat can be affected by excessive radiator pressure.
Check your radiator cap pressure, should be 4 PSI for Tr3, 7 PSI for Tr4.

M."
Merlin,

Sorry to belabor this topic to the extreme. But I'm trying to get a fix on what was & what wasn't happening, due to that high pressure cap.
on comparison with similar radiator caps, I believe my after market cap was an 18psi (based on spring size and tension).

so I'm wondering, how was that effecting my cooling system & specifically the bellows thermostat.
note: the by pass system is functional on my car.

thanks again & Happy Thanksgiving
Click to expand...
Click to expand...
 
With the bellows-type thermostat (aka aneroid), the gas inside expands with heat to spread the bellows and open the thermostat. But water pressure tends to collapse the bellows, so the higher the pressure, the hotter it has to get to open.
 
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