PMC
Well-Known Member
Oh... You can't tell visually if you are getting enough flow...
Agreed. Doesn't the 320 have underwater exhaust?
The first time happened on plane .. Shut the engine down pretty quick and returned to the dock on the starboard... Started again during docking and by that time it cooled....
Ran it again on idle just to check to see if it was a thermometer issue and it gradually overheated after around 10-15 minutes up to 190 (turned it off before alarming )
just checked the the oil again today and no water
what's the best place to out the laser thermometer to get a good reading of the temp? Risers ? Thermostat ? Manifolds ?
Also so after reinstalling the impeller do I have to add water back in the engine before I start her up ?
If your overheating at idle, you have very little (to no) water flowing through the engine to cool it. Start scanning all the areas and post them. Risers, Thermostat, Manifolds, Elbows. Post some pictures of the specific locations. You have a lot of variables to eliminate before finding the problem. Could be a collapsing hose, could be a clogged cooler (oil, fuel ?? ), could be a lot of things. Is this a V drive or Outdrive boat (I may have missed it)?