brian18330

Okay, I had sucked up tons of sand and flushed out everything I could and replaced some parts. The engine that kept overheating now runs at about 100degreesn and the other one that wasnt really affected (or so I thought) will run at 190 at WOT. I replaced both thermostats, maybe the one thats only running at 100 is defective??? Also, isnt 190 too hot at WOT? Thanks for all the help

Dave M

My MPI motors always ran about 170-180. I believe they have 165* t-stats. I would check the sending unit on the motor that is running cool.

brian18330

They have 160* thermostats.........I thought you dont want it too cool because the computer will dumpp more fuel???

JaayTeee

Correct,
don't run it without the thermostat.

You could swap the temp gauge senders, or gauges
from side to side to see if the problem transfers.

Or, if you had access to one, use a infra red temp
gauge and check to see what they're running at.