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Search took 0.00 seconds. Search: Posts Made By: mmwjr

Forum: Engines

05-29-2022, 01:02 AM

Replies: 22

3.0 thermostat issues

Views: 1,612

Posted By mmwjr

If you put the shifter into gear and the...

If you put the shifter into gear and the propeller spins the shaft that turns the impeller is turning. Missing key, bad collar in the impeller or just worn impeller.

Forum: Engines

05-24-2022, 01:25 AM

Replies: 22

3.0 thermostat issues

Views: 1,612

Posted By mmwjr

I would consider that end of life. It’s near the...

I would consider that end of life. It’s near the point when failure will occur allowing water to get into the exhaust.

Forum: Engines

05-22-2022, 09:03 PM

Replies: 22

3.0 thermostat issues

Views: 1,612

Posted By mmwjr

Idle being 650 rpm? See the mercruiser...

Idle being 650 rpm?

See the mercruiser manual for you engine under Documents

Forum: Engines

05-22-2022, 06:35 PM

Replies: 22

3.0 thermostat issues

Views: 1,612

Posted By mmwjr

The two ports on either side of the transom...

The two ports on either side of the transom assembly are for idle and at higher rpms most of the water will come out the prop, what rpm are you at? Have you performed the flow test to verify the...

Forum: Engines

05-21-2022, 12:14 AM

Replies: 22

3.0 thermostat issues

Views: 1,612

Posted By mmwjr

Yup rust scale. No easy way to clean it out. I...

Yup rust scale. No easy way to clean it out. I had to replace the engine on my first boat due to this as it was causing overheating all the time. I did try removing the heads and scraping the water...

Forum: Engines

05-19-2022, 01:03 AM

Replies: 22

3.0 thermostat issues

Views: 1,612

Posted By mmwjr

Raw water cooled in salt water 140 F to stay...

Raw water cooled in salt water 140 F to stay below the crystallization point of salt. Not sure what the black stuff is.

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