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Forum: Engines

11-03-2015, 08:36 PM

Replies: 8

Excessive Steam Mercruiser 5.7l raw water

Views: 5,052

Posted By Originalsin

Hello all, Found the issue, it appears the...

Hello all,

Found the issue, it appears the hose in the Bravo 2 leg was getting kinked and reducing the flow to the water pump. Will need to do further investigation why this has happened and maybe...

Forum: Engines

10-31-2015, 01:20 PM

Replies: 8

Excessive Steam Mercruiser 5.7l raw water

Views: 5,052

Posted By Originalsin

Yes Mike, raw water cooling with dry joints....

Yes Mike, raw water cooling with dry joints. There is something definitely amiss with the cooling system. I think I'll work through all the cooling hoses and take some more readings.

Thanks for...

Forum: Engines

10-31-2015, 09:44 AM

Replies: 8

Excessive Steam Mercruiser 5.7l raw water

Views: 5,052

Posted By Originalsin

Mike, the manifolds on both motors are around...

Mike, the manifolds on both motors are around 200f and the elbows are around 120f at 3000rpm. So all appears ok besides the steam on the stb engine. The stb engine elbows heat up when on the earmuffs...

Forum: Engines

10-31-2015, 12:20 AM

Replies: 8

Excessive Steam Mercruiser 5.7l raw water

Views: 5,052

Posted By Originalsin

Thanks Mike 2 x 350 mag with Bravo 2 drives...

Thanks Mike

2 x 350 mag with Bravo 2 drives and the boat is dry stacked. the old impeller was intacted on removal.
Helm gauge is reading 71c (160f) at all rev ranges. Had a temp gun on the...

Forum: Engines

10-30-2015, 12:19 PM

Replies: 8

Excessive Steam Mercruiser 5.7l raw water

Views: 5,052

Posted By Originalsin

Excessive Steam Mercruiser 5.7l raw water

Hello everyone......i need some advice or past experiences.

I have a Maxum 3100se 2006 had the Stb engine over heat at 3000 rpm a few weeks ago. So changed out the impeller and thermostat had the...

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