Need help /suggestions 72 johnson 9.5 overheating

G

guymd

Recruit
Joined
Apr 25, 2013
Messages
3
72 johnson 9.5 in great shape is overheating, good thermo, good pump / impeller, clean as a whistle inside, it looks like its not had much water run through it at all. it starts to spray some water then stops. i took off the exhaust cover and could not find a spec of blockage. thanks
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R

Rick.

Captain
Joined
Jul 30, 2006
Messages
3,740
Re: Need help /suggestions 72 johnson 9.5 overheating

Your impeller looks as though it should be replaced as it has a permanent set (curve) to it. Is the drive pin which holds the impeller to the drive shaft in place? How much water did you have in your barrel? The water level should be well up the lower unit well above the water pump. Your motor does look like it hasn't pumped much water over it's lifetime. Best of luck. Rick.
 
D

ddwilson

Petty Officer 2nd Class
Joined
Apr 8, 2012
Messages
116
Re: Need help /suggestions 72 johnson 9.5 overheating

Make sure there is not a piece of an old impeller that has broken off and stuck someplace up the tube, if it starts to spray then stops either something is blocking it or the thermostat is not staying open even if it looks good.
Doug
 
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