50HP Replaced impeller and thermostat. No water flowing. Where to look?

roscoe

Supreme Mariner
Joined
Oct 30, 2002
Messages
21,739
Drop the lower unit and make sure the key is in the impeller.
Then install lower unit and make sure the water tube is inserted into the water pump housing.
Put motor in lake or tub of water, make sure water pump is submerged in water.
 

777funk

Petty Officer 2nd Class
Joined
Jan 12, 2015
Messages
150
Old thread but I think his problem was that we didn't have the lower unit aligned with the water pipe. He made sure all lined up and it works.
 

Scott Danforth

Grumpy Vintage Moderator still playing with boats
Staff member
Joined
Jul 23, 2011
Messages
49,538
Thanks for coming back to put closure to this
 
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