Volvo Penta D8 550 stbd exhaust temperature @ 1020F, port at 770F

Sailor999

Recruit
Joined
Oct 13, 2021
Messages
3
Hello, I am new to this forum so please forgive my etiquette mistakes.

I noticed that my engine display shows the starboard exhaust temperature sensor @1020F vs 770F on port at about 80% of power. All other engine parameters were nearly identical on both sides, within normal. and no errors were recorded. I know that the error detection system works as they are displayed liberally on benign occasions.

Questions:
- what is the allowable exhaust exhaust temperature? (could not find the limits anywhere)
- what could cause it and is that something critical to fix right away?

I just ordered an IR temperature meter to check the external temperature on both sides of the exhaust. Any other suggestions would be appreciated.

Thank you!
 

alldodge

Supreme Mariner
Joined
Mar 8, 2009
Messages
34,300
My guess is the sensor may be the problem, thinking other things would show up.

The IR gun will help identify if there is an issue. Might swap the sensor to see if it moves to the other motor
 

Sailor999

Recruit
Joined
Oct 13, 2021
Messages
3
My guess is the sensor may be the problem, thinking other things would show up.

The IR gun will help identify if there is an issue. Might swap the sensor to see if it moves to the other motor
Thank you alldodge. I will try your suggestion when I am next on the way. Any thoughts what that temperature should be? Not listed in the spec or operating manual.
 

alldodge

Supreme Mariner
Joined
Mar 8, 2009
Messages
34,300
Don't know for sure. If probe is right after the turbo then 1000 degrees or more would be right. If itsin the muffler then less because of water mix. Who knows the one reading 700 might be the problem. Just depends where the probe is located
 
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