Does anyone have any tricks to tell if a raw water pump has gone bad? 350 FWC Merc
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Does anyone have any tricks to tell if a raw water pump has gone bad? 350 FWC Merc
Assuming you have alphas on an 88 300 weekender? Is it overheating and how hot are the exhaust elbows?
Just to clarify, are you talking about the belt driven circulator pump, or the impeller down in the outdrive?
Your title says circulator pump, but your first post says raw pump
Isn't a weekender strightdrive's/shaft's?Are we sure this is FWC with a heat exchanger? Im thinking for the style and age boat - it would be raw water cooled.
Previous post says you picked up a 160 thermostat. What temps are you hitting on the gauge? Did you put a 160 in each engine, and only one is showing issues?
What's going on that you suspect them to be bad? How old are they? How deep is your water? Sandy bottom, right?
Isn't a weekender strightdrive's/shaft's?
Mitch is correct about the straight shafts. Engines don't really factor in, though - but based on his signature they're small blocks.Need a little information on the boat and motors
Ok folks this is what I have to report.
Risers and manifolds were cool to the touch and the output at the exhaust was pretty normal.
All hoses but one were the same. The one hose leads from the circulation pump to the bottom housing of the thermostat was very hot.
Any guesses would be great. I’m still looking at the pump or the thermostat