Low block Pressure Alarm

[muc]

I’m having trouble understanding post #19. curse?
Then ...hope this dose it..
Then #20 Looking to repair myself. Did it not do it?

 

[Ken Stephens]

Sorry Muc Typo... Number 20 was answering a question . 19. Ran it for about a hour after changing thermostat and water pump. Flushed engine and changed block pressure sensor again after a good cleaning. Nothing was found in sensor. Boat seemed ok but it nay jump out and get me again. Still cant find a visible cause.

 

[muc]

Did I see somewhere that after replacing the impeller your temperature dropped way down? If so that would suggest that the impeller was in need of replacement.

Did you happen to notice any markings on the new thermostat? MerCruiser lists it as 140 degrees in the manual.

Hope it keeps working for you.

 

[Ken Stephens]

Yes had another after impeller change, Thermostat stuck open only 109 at high temp.corrected that with new 140 Thermostat.

 

[GA_Boater]

Fixed for now or just had another alarm with stuck stat?

 

[Ken Stephens]

No alarm with stuck Stat temp wise. Still had a low block pressure alarm. Replaced Stat with new 140 Degree, This was the first time the stat has stuck had a few sand particles holding it. Flushed out engine the best i could . it seem to do ok after a hours run. No I have not run aground . So not sure where the sand particles only two came from. Again i hope this did it . You guys are so patient and helpfull