1975 Evinrude 40HP- New Impeller No Water From Exhaust

[Sunken Ship]

I replaced the impeller and housing season before last, which worked great until now. I just pulled lower unit off and the impeller appears as good as new. Impeller key was also good. Sucked water out the exhaust with a vacuum cleaner. Blew air through holes. Installed a tell-tale, which also worked all last season. I did not see a thermostat on this motor int he diagram. I put thermocoupler on it and let it idle to 200f then shut it off. Gear box is turning water fine in forward and revers. Running in a garbage can. Any ideas?

 

[racerone]

Water MUST be 6 to 8" above the pump in your garbage can.

 

[Sunken Ship]

well...guess I deserve to kick self for that one....thank you.

 

[F_R]

That motor actually is a very old design, and a multitude have been built and are still giving good service. So it has to be something simple as racer suggested.

 

[Sunken Ship]

racer was correct. Filled can to very top and it was fine. Did this several times in the can before and never really noticed how full I was filling it. It is an excellent old motor. Hope my next is as good.

 

[geoffwga1]

If you look after that one you likely won't need a "next one" it'l probably outlast you.lol.

 

[hardwater fisherman]

I have a 1976 40hp evinrude that I have got running very well with some help from here.. And just learning by working on it. People ask me why do you not buy a nice new four stroke? Then when they see all my fishing gear they ask where did you get the money for that.

 

[Sunken Ship]

Going on 2 decades with this same boat and motor now....just time to upgrade. Motor has never left me on the lake. If I never sell it then I will always have a good boat and motor. I did put it up for sale locally and I hate to let it go after owning it for soooo long now, but we need something bigger. Just want to make sure everything is working good before I actually sell it to someone.

HF it is crazy how much these motors cost new! I would never buy one new. Would just buy an old Evinrude/Johnson.

I can't seem to get a good grasp on used boat prices. Is nada a decent place to get accurate values on used boats? It doesn't appear to be uncommon for people to ask twice NADA book value, so I am wondering if that is a decent place to get fair market value.