freebeerisgood
Member
1999 7.4l I/O
Water pump was about 60hrs/2 yrs old when it failed. I have changed them regularly and having owned the motor a long time, it's occasional failure doesn't surprise me one bit.
That said, prior to noticing the failure after I pulled it out of the water and attempted to flush the engine, there was a unique symptom/sign of it failing that I haven't seen before, and Im curious if its common.
About 10 miles out from the marina, I had some fuel flow issues (indicated at least) in my flow scan gauge. Fuel flow began to become erratic, dropping to 3-4 GPH from about 16 at cruise. I never noticed the engine act up, just a indicated change.
Ultimately I want to know if anyone has seen this caused by a water pump starting to fail, as I have yet to see that prior to it failing?
It has a Fuel/Raw water pump combo of course, and the engine never changed normal operating temperature prior to pulling it out of the water and attempting to flush, when I noticed it was not pulling in water, and checked the impeller and found it had failed.
Any experiences with this would be interesting to hear.
Thanks
Water pump was about 60hrs/2 yrs old when it failed. I have changed them regularly and having owned the motor a long time, it's occasional failure doesn't surprise me one bit.
That said, prior to noticing the failure after I pulled it out of the water and attempted to flush the engine, there was a unique symptom/sign of it failing that I haven't seen before, and Im curious if its common.
About 10 miles out from the marina, I had some fuel flow issues (indicated at least) in my flow scan gauge. Fuel flow began to become erratic, dropping to 3-4 GPH from about 16 at cruise. I never noticed the engine act up, just a indicated change.
Ultimately I want to know if anyone has seen this caused by a water pump starting to fail, as I have yet to see that prior to it failing?
It has a Fuel/Raw water pump combo of course, and the engine never changed normal operating temperature prior to pulling it out of the water and attempting to flush, when I noticed it was not pulling in water, and checked the impeller and found it had failed.
Any experiences with this would be interesting to hear.
Thanks