Running hot on 1 bank.

[jerryjerry05]

1999 200hp EFI
New impeller, new thermostats 143d, new pressure relief.

I changed position of the thermos' and made no difference.?

The stbd. side runs hot and the alarm sounds off.
Continuous solid tone.

The oil's full.
The lower unit's new.
The high pressure pump's new.
Ne thermo;s.

I have a temp gun and the port runs 130-140
The stbd. gets to 150+ after a while.

Any ideas??

THANKS!!

 

[jerryjerry05]

Was there a service bulletin about changing the 143d thermos to a 130d???
That might solve my problem??

 

[jerryjerry05]

Nobody??

 

[Dukedog]

over temp should sound at 190 min... usually over 200+.. not unusual for stbd. ta be a "tad" warmer... this is not ta say ya don't have a problem somewhere???

pretty sure tha 143 is only option unless after market has stepped in.... they do have a 120 something that came in tha 15" 225 pro max...