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

Forum: Engines

06-02-2023, 06:49 PM

Replies: 16

5.7 merc/bravo2 temp creep

Views: 1,273

Posted By mmwjr

Mainly a pass through but it is a heat exchanger...

Mainly a pass through but it is a heat exchanger to remove heat from the PS fluid. So I would perform the flow test to verify the proper water flow is getting to the heat exchanger. Then pull hoses...

Forum: Engines

06-02-2023, 01:41 AM

Replies: 16

5.7 merc/bravo2 temp creep

Views: 1,273

Posted By mmwjr

I would do a water flow test per the Mercruiser...

I would do a water flow test per the Mercruiser manual. This is for the raw water side to verify there is proper flow rate per rpm. Possible blockage in the power steering cooler.

Forum: Engines

05-13-2023, 12:00 PM

Replies: 16

5.7 merc/bravo2 temp creep

Views: 1,273

Posted By mmwjr

160 is the correct thermostat for closed cooling...

160 is the correct thermostat for closed cooling system you have. I would be concerned as well. Have you verified that the coolant level is correct in the heat exchanger?

Forum: Engines

05-13-2023, 12:04 AM

Replies: 16

5.7 merc/bravo2 temp creep

Views: 1,273

Posted By mmwjr

What thermostat is in the engine? It should be...

What thermostat is in the engine? It should be 160 *F. My 5.7 with closed cooling never gets above 175*F and it uses the Bravo water pick up.

Forum: Engines

08-09-2022, 12:05 AM

Replies: 16

5.7 merc/bravo2 temp creep

Views: 1,273

Posted By mmwjr

I’m taking about the transom assembly that the...

I’m taking about the transom assembly that the leg bolts to. If this was rebuilt as well I would perform a water flow test by removing the raw water hose to goes to the heat exchanger and verify the...

Forum: Engines

08-08-2022, 09:33 PM

Replies: 16

5.7 merc/bravo2 temp creep

Views: 1,273

Posted By mmwjr

Could be Bravoitis. This is where the transom...

Could be Bravoitis. This is where the transom hose retainers get clogged with growth. The retainers are plastic insert that hold the hose in place. Very common problem. When was the transom assembly...

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