6BTA 370 overheat

[Ron Pickering]

I picked up some rubbish on my intake while leaving the harbor. Alarm sounded and temp was 220. I shut it down and then let it cool before starting up and put it just in gear back to harbor. Less than 1/4 mile. Temp got up to about 210 back to harbor. Changed impeller and cleaned up pieces downstream of that. Looks like I got all the pieces
What else should I check to make sure engine is ok?

Thanks
Ron

Topic

[Rob Schepis]

Sounds good, I’d say you dodged a bullet.

[Ron Pickering]

Rob,

I was at light load at 1200 rpms just leaving the harbor. No coolant lost or paint discoloration.
I’ll check the exhaust hose. Pyrometer was reading 300.

Thanks
Ron

[Rob Schepis]

At what load where you running?
Did you boil any coolant out?
Discolor any paint?
If coolant not lost it’s best to keep engine idling and coolant circulating. A temp rise due to seawater side problem is much more forgiving than overheat due to a coolant loss. What is the coolant level now? Are temps back to normal now? Check your wet exhaust hose off the mixer for possible damage from wet exhaust running dry/hot.

[Author]

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