titanbry77
New member
"Hey All great forum here!
"Hey All great forum here!
I noticed 3 weeks ago, a bit of water/moisture coming from my sea water pump also black soot from it getting on the serpentine belt and the engine running a touch hotter than normal(Volvo 5.7GXI), local shop said common on this motor, so I bought a new pump put it on, piece of cake also a new serpentine belt. All exact volvo parts and when the old impeller was removed it was in perfect shape.
Now here is where it's strange, I see no more moisture or water, but, the engine is still running a touch hotter, im still getting some black soot from the belt (not as much) and now..... If I'm running in the 2200-2800 RPM range, the Temp gauge starts shooting up, somtimes to the point of beeping and limiting RPM 200+ Deg.. Bringing it to an idle or getting her to run WOT, temp comes back down within seconds.??
I have no idea what is up, I can idle all day and the temp is fine, I can run near or at WOT and its fine, right in the cruise area, issues?? Could the tensioner be off or having problems at certain RPM etc?
Also I've read about the water hose connector, how do I test this, it seems this could be the issue, sucking air. Also on the freshwater flush it does not overheat."
"Hey All great forum here!
I noticed 3 weeks ago, a bit of water/moisture coming from my sea water pump also black soot from it getting on the serpentine belt and the engine running a touch hotter than normal(Volvo 5.7GXI), local shop said common on this motor, so I bought a new pump put it on, piece of cake also a new serpentine belt. All exact volvo parts and when the old impeller was removed it was in perfect shape.
Now here is where it's strange, I see no more moisture or water, but, the engine is still running a touch hotter, im still getting some black soot from the belt (not as much) and now..... If I'm running in the 2200-2800 RPM range, the Temp gauge starts shooting up, somtimes to the point of beeping and limiting RPM 200+ Deg.. Bringing it to an idle or getting her to run WOT, temp comes back down within seconds.??
I have no idea what is up, I can idle all day and the temp is fine, I can run near or at WOT and its fine, right in the cruise area, issues?? Could the tensioner be off or having problems at certain RPM etc?
Also I've read about the water hose connector, how do I test this, it seems this could be the issue, sucking air. Also on the freshwater flush it does not overheat."