SoCal Jet Boats
Tech Talk => Engine Mechanical / Electrical => Topic started by: KonaGuy on June 02, 2010, 08:54:51 PM
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Alright. I am in the process of redoing some things on my motor. The manifold and thermostat housing being one of them. On my motor now I have coming out of the water outlets where the water pump usually gos is a "t" coming out of each hole connecting the 2 in the center and a "T" in the middle with another hose going to the top of the thermostat housing. So there are 3 hoses coming out of the thermostat housing. Is there a benefit to this? I was looking at pics of other bbc motors and they all only have 2 hoses coming out of thermo housing. Confused on what I should do?
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pics brother
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I will put some up tomorrow, thanks
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For "cold " plumbing the water should come from the jet to an open "T" then to the front of the engine (where the water pump inlets were) , it then comes out of the T stat/divider to each ,ex manifold then after circulating thru the manifold continues to the rizers . For "hot" the water comes from the jet to an open "T" then to each Ex manifold then to the front of the block , in this case when the water exits the block at the divider it goes directly to the rizers All of this is different of course for 4 tube water injected headers Tom
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tom so right now mine (460) goes from pump to T then to front of exhaust manifolds, then front of exhaust manifolds to where water pump was then t stat to risers.
question.
can i run from pump to water pump area fittings first to be colder?????
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thats how mine was setup before i replumbed. did you try opening the valve on the pump a little more to cool it a little first?
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thats how mine was setup before i replumbed. did you try opening the valve on the pump a little more to cool it a little first?
how was yours plumbed. i am confused
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tom so right now mine (460) goes from pump to T then to front of exhaust manifolds, then front of exhaust manifolds to where water pump was then t stat to risers.
question.
can i run from pump to water pump area fittings first to be colder?????
Sounds like you have it right... I have a 460 and run with the valve all the way open all the time. In the warmest water it will be 140-180. I had an olds before and you need to be careful on your water pressure....water jacket crack in the head.
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how was yours plumbed. i am confused
it was plumbed how you are asking. it went from the jet to the block, instead of preheating in the log first. i went and re-plumbed it the proper way, and noticed no warmer temps.
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cool thanks
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So,--- mine comes from the pump, into the exhaust manifolds, out to the former water pump inlets, then out of the thermosat housing, and back to the exhaust manifolds and exits out there. It seems to work, so is this correct? I guess you could say that my system pre-heats the water before it enters the engine itself. I do not run a thermostat, and I adjust the water flow to keep the engine at 150-165 degrees.