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Old 10-07-2010, 08:40 AM
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Default Thermostat Housing

I want to put the circulating pumps back on my engines and was wondering what t - stat housings will work the best? Are the stock Merc ones still available? BBC with Gil exhaust.
Thanks
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Old 10-07-2010, 08:58 AM
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if you only have 2 hoses going to the manifolds and none going to the riser then this woul be the one i would use and have used..

http://www.georgiawatersports.com/Pr...dcategory=2235
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Old 10-07-2010, 09:28 AM
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What should the water pressure be at idle? My gauge is plumbed into the top of the intake not sure if that matters
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Old 10-07-2010, 10:25 AM
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Originally Posted by eightsecmopar
What should the water pressure be at idle? My gauge is plumbed into the top of the intake not sure if that matters
i have no ides what your set up is and they all vary from boat to boat. but their is 2 npt threaded ports for your coolent temp and you couse the other for your water pressure gauge.
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Old 10-07-2010, 12:05 PM
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Idle water psi is 0-5# on pretty much all boats. Idle water psi really doesn't matter.
Its the max psi you see at WOT that is important. 20-25psi is ideal for WOT.
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Old 10-07-2010, 03:42 PM
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If you want the above style thermostat housing, but in a stock merc version, I have an extra one laying around that is in really nice shape. It's not all chrome and shiny, but it's not corroded or anything.

- Will
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