Recent content by thomascrown

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    Thermostat GLM13230 OEM # 87290A4

    I am. Which is why I ran it both in lake and on hose. Everything is getting water when I remove the thermostat, when it is in, the exhaust manifolds are not getting water. I can hear them begin to boil water, thus when I pull the hose that supplies them water, the steam.
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    Thermostat GLM13230 OEM # 87290A4

    So why am I not getting flow to the exhaust manifolds when the thermostat opens. I pulled the cap off after running it, and the thermostat was wide open. But I had steam come out the exhaust manifold hole before I took the cap off.
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    Thermostat GLM13230 OEM # 87290A4

    I replaced my engine with an ATK rebuilt and a new SEI106 Lower unit. I have new risers, manifolds, circ pump,and new thermostat with T valve and check balls. Started the boat and temperature went to 200, verified this on hose and in the lake. I pulled the thermostat 140 degree, and ran the...
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    Mercruiser 200 V8 Alpha 1 MR Drive

    Getting antsy for the salmon season, so I started to pull my lower to put a new water pump in. And, the plastic tube that helps line up the water intake was melted. Looked up into the top half, and the water pocket had signs of heat/some melt from the outside. Gasket was okay and seal were...
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    Mercruiser 305 V8 running hot at low RPM fine at Speed

    Much appreciated. Confirmed I do have the 140 thermostat.
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    Mercruiser 305 V8 running hot at low RPM fine at Speed

    Honestly when I bought the boat, it had a new T stat setup in it. Based on the Serial number of the engine, I can never find anything about the engine on any parts sites. The boat is a 1987 so I buy parts for it based on that year range. The serial sticker says: A612838
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    Mercruiser 305 V8 running hot at low RPM fine at Speed

    Thanks for everyones input. Went and fired it up let it warm up at dockside for 20 minutes, temp never went past 170. Took it out for another hour. Temp hit 180 once, then came back to 170. To it back to the dock and let it idle another 15 minutes, stayed at 170. I went all speeds, but since...
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    Mercruiser 305 V8 running hot at low RPM fine at Speed

    I just noticed that Diagram one does not show the T valve balls, which mine has. Top of my thermostat is marked 47440
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    Mercruiser 305 V8 running hot at low RPM fine at Speed

    No Alarm, not even sure where I would hear it from, or where it would be wired. Engine SN# 0A688183 My Thermostat Looks like Design 1, so I didn't use the rubber 0 ring. Design 1 shows gasket on top of Thermostat, is that where the black 0 ring should go? between top of thermostat and copper...
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    Mercruiser 305 V8 running hot at low RPM fine at Speed

    This leads me to: hose from the bellhousing to the gimbal housing. How do I check this for obstructions and or kinks??
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    Mercruiser 305 V8 running hot at low RPM fine at Speed

    I used the Cork Gasket on top of the thermostat with the copper piece on top of that. I followed the diagram on the parts diagram.
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    Mercruiser 305 V8 running hot at low RPM fine at Speed

    The alpha pump will push just under 20 gpm. The pump deadhead pressure is about 20psi However as Bt doctur stated, At what RPM is it pushing this flow?
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