1970 johnson 25 hp no water out of exhaust????

J

jb77009

Cadet
Joined
Mar 2, 2012
Messages
6
im helping a friend of mine with this. we bought a water pump repair kit and replaced the pump. the copper tube that runs from the water pump is in the hole that goes up to the engine. we took it to the river and put the boat in and there is not a drop of water coming from the exhaust? any ideas. the old water pump impeller was not broke
 
B

boobie

Supreme Mariner
Joined
Nov 5, 2009
Messages
20,826
Re: 1970 johnson 25 hp no water out of exhaust????

Did you miss the water tube when you put the g/c back ? Is the mtr overheating ? Is the water pump impeller key installed correctly ?
 
J

jb77009

Cadet
Joined
Mar 2, 2012
Messages
6
Re: 1970 johnson 25 hp no water out of exhaust????

the key is in right and the tube is in the right place. do these have a thermostat?
 
B

boobie

Supreme Mariner
Joined
Nov 5, 2009
Messages
20,826
Re: 1970 johnson 25 hp no water out of exhaust????

Yes. It's right on top of the cyl head under a cover held in by 3 bolts. Pull the cover off, remove the thermo and start the mtr up and see if you get water out of there.
 
J

jb77009

Cadet
Joined
Mar 2, 2012
Messages
6
Re: 1970 johnson 25 hp no water out of exhaust????

ok i will try that. this motor has set outside for 2 years. i didnt see any bugs nests in the exhaust or anywhere else. thank you for your help
 
You must log in or register to reply here.
Top