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SoCalKyle5

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Dodge 440 thermostat? or lack-there-of...
« on: June 20, 2017, 02:25:26 PM »
Hey guys I inherited a 71' hydro from my grandpa. My dad and I rebuilt it over the last 4 years but my grandpa was a bit of a mickey mouser and we are trying to do it right. Which brings me to my question... Right now we have a cheap Y garden hose adapter attached to the pump house so that we can attach a hose to run it in the driveway. Because dodge mounts the thermostat on the water pump in a car, we don't have a thermostat in the boat. So we just kind of open that little hose valve when the boat is warming up, and tune it that way. I don't like this!!! it seems like there must be a better solution out there! Does anyone have any suggestions?
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mash on it

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Re: Dodge 440 thermostat? or lack-there-of...
« Reply #1 on: June 20, 2017, 02:51:22 PM »
Welcome to socaljetboats :thumbup:

98% of all jet boats DO NOT run a t-stat.

This is a single pass system. you want to gain about 50*.

Lake temp 75*, outlet temp 125*. DO NOT run 180-195. ITS NOT A CAR.

McMerc's run 'tween 140-160, with a stat. Outboards usually cooler, too.

Oil temp is a much bigger factor.

use a gate valve, at the pump, to get some temp out of the motor.

good luck,

Dan'l
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CJ/RR 212...under construction  "Pistol Annie"

 


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