port engine 190 to 200 at 1800. Replaced thermostats,cleaned heatexchangers.guages ok.
Would appreciate any suggestions
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Thread: 871TI over heating
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08-20-2018 03:57 PM #1Registered Member
- Join Date
- May 2005
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- 23
871TI over heating
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Re: 871TI over heating
Did you change your raw water impeller?
Looking for a 80 plus foot yacht
Hatteras of Cheoy Lee
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Re: 871TI over heating
How did you clean the heat exchanger? Thermostat may need replacing. Even if you recently changed the impeller check it, they break apart even when new.
SEVEN
1979 53' MY Hull #563
Antioch, California
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Re: 871TI over heating
Sorry about adding thermostat. I didn’t read it completely.
SEVEN
1979 53' MY Hull #563
Antioch, California
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08-20-2018 07:43 PM #5
Re: 871TI over heating
Impellers, gear coolers , seawater intake , exhaust elbow, any thing along the sea water path that can cause a oubstruction needs to be looked at , along with bottom fouling.
Capt. Andy1980 43 DC
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Re: 871TI over heating
Done anything on the FW side?
Semper Siesta
Robert Clarkson
ASLAN, 1983 55C #343
Charleston, SC
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08-20-2018 10:52 PM #7
Re: 871TI over heating
you using an IR gun to determine temps or some electronic gauges that may have the wrong sending units etc? Dirty hull and gear can cause it to run hot as well