Cooling 90HP Mercury 4 Stroke

[Chris mac]

I have just bought a new 90 HP Mercury 4 stroke. It ran perfectly on its first trip with no problems. When I started the motor in a tank of fresh water to flush the motor out no water came out of the 'tell tale ' hole at the back of the motor. The intake holes were submerged and were not blocked.

 

[miloman]

Re: Cooling 90HP Mercury 4 Stroke

I assume it was brand new my suggestion bring it to the dealer who sold it to you Im sure there is warranty I would not even bugger with it let them

 

[Bear]

Re: Cooling 90HP Mercury 4 Stroke

The water level must be above the water pump.

 

[miloman]

Re: Cooling 90HP Mercury 4 Stroke

Hey bear I see you are over 1000 posts doesnt that mena you are to be elevated from Captain to admiral

 

[dick]

Re: Cooling 90HP Mercury 4 Stroke

Not that it matters but if you don't want to run the motor I think you can screw the hose right into the tell tale grommet and flush the engine that way. Check the owners manual you got with the engine.<br />Oh and get the water level well above the antiventilation plate and see if it still doesn't pump.

 

[Chris mac]

Re: Cooling 90HP Mercury 4 Stroke

Thanks guys<br /><br />Have fixed the problem. Seems there was a small pebble which got in throughthe intake but couldn't get ot through the tell tale outlet, This caused the blockage. A backflush with the garden hose has sorted it out.<br /><br />regards