hi all,
have a 81 Johnson j60tlcih,last week the warning buzzer came on,noticed the linkages holding the timing plate had broke,tied wire on them to get me home,tell tale was flowing solid water at all speed but rear exhaust was only pumping water at slow rpm,whenever i increased rpm the water stopped pumping from exhaust,so i drove slow all way home and hopefully havnt done any damage.I am wondering why the water wouldnt pump under higher rpm,i inspected impeller and it appeared to be in usable condition,I am changing it anyway whilst its apart and also doing thermostat and gaskets.
- why would water pump at low rpm and not high rpm,im assuming if it was blocked it wouldnt pump water out the exhaust at all ?
- is the warning buzzer for overheat only ?
-i had to grind the old impeller off and the keyway appears to be fixed to the shaft,is this correct,or is it just rusted in there ?
Thanx
Adam
have a 81 Johnson j60tlcih,last week the warning buzzer came on,noticed the linkages holding the timing plate had broke,tied wire on them to get me home,tell tale was flowing solid water at all speed but rear exhaust was only pumping water at slow rpm,whenever i increased rpm the water stopped pumping from exhaust,so i drove slow all way home and hopefully havnt done any damage.I am wondering why the water wouldnt pump under higher rpm,i inspected impeller and it appeared to be in usable condition,I am changing it anyway whilst its apart and also doing thermostat and gaskets.
- why would water pump at low rpm and not high rpm,im assuming if it was blocked it wouldnt pump water out the exhaust at all ?
- is the warning buzzer for overheat only ?
-i had to grind the old impeller off and the keyway appears to be fixed to the shaft,is this correct,or is it just rusted in there ?
Thanx
Adam