Mariner 9.9 Waterpump

[Mackpac1]

Regarding a 1981 Mariner 9.9 engine, I ran the engine on dry land while having water running thru the flush port (via a garden hose attachment) on the lower unit. I was informed that this is a no no and that there is a possibility that I may have blown the water pump in the lower unit by doing this. Is this true and if so, how would I be able to tell if the water pump is blown before I put the boat in the water?

 

[bill giffear]

Re: Mariner 9.9 Waterpump

Mackpac1, I always use a set of muffs to flush my engine ,never had a problem!!!!as long as you see water coming from the tell tail ,the pumps working.. bill

 

[Bear]

Re: Mariner 9.9 Waterpump

With no water at all, this is what will happend in just a few seconds:<br /> http://www.brokeboats.com/drypump.html <br /><br />You can test it now if you fill a trash can or similar with water. The water level must be above the waterpump. That is important.<br /><br />/Bear