1961 18 hp

Sugashane · Mar 30, 2009

this thing is driving me bananas! i recently rebuilt the carb. installed a tune-up kit, put in a new impeller and thermostat......it seems to be running fine, but for some reason it is still running hot. it peeing water like it's supposed to, but you could fry an egg on the heads! please help.

Sugashane · Mar 30, 2009

Re: 1961 18 hp

also, i took the cover off of the thermostat and noticed that it is dry as a bone. I'm new to these outboards, but i do assume that water is supposed to be flowing thru that compartment.....right?

jbjennings · Mar 30, 2009

Re: 1961 18 hp

If it's pumping water, then water will be pouring out if you have the thermostat cover off. If it's spraying out the exhaust hole but not coming through the thermo passage, then you have yourself an obstruction in the head, I believe.
Good luck and don't keep letting it get that hot!

JBJ

wbeaton · Mar 30, 2009

Re: 1961 18 hp

Yup. Thermostat can't work without water. That motor doesn't "pee". Water comes out with the exhaust located midway down the back of the midsection. You should see lots of water coming out. Sounds like you need to make sure everything is lined up and connected properly. Make sure the water pump housing and wear plate are in good condition. The water tube is lined up with the pump housing and that all the grommets are in good shape. If it still runs hot then you need to remove the powerhead and go through all the passages.

Good luck. I hate cooling issues.

Sugashane · Mar 30, 2009

Re: 1961 18 hp

sorry, when i said "pee" meant "spray". but it only sprays when i have it wide open, at low speeds i see nothing.

wbeaton · Mar 30, 2009

Re: 1961 18 hp

Actually, nevermind what I just said. Double check everything previously mentioned and then post back.

Sugashane · Mar 30, 2009

Re: 1961 18 hp

one more question before i get back to work on it. when i dropped the lower unit, the brass water line was attached to the impeller houser. when i re-installed it i made sure that the line went into the space where the water sprays out. i could see the brass thru the three small holes in the exhaust. is do i have it in the right spot, or is it supposed to connect to something further up.?

tx1961whaler · Mar 30, 2009

Re: 1961 18 hp

The bottom end of the water tube connects to the water pump. The top end goes into the power head. Get the water tube into the power head first, then put the lower end on and align the tube with the water pump hole. It's pumping water, but it ain't hooked up to anything...

F_R · Mar 30, 2009

Re: 1961 18 hp

Sugashane said:
one more question before i get back to work on it. when i dropped the lower unit, the brass water line was attached to the impeller houser. when i re-installed it i made sure that the line went into the space where the water sprays out. i could see the brass thru the three small holes in the exhaust. is do i have it in the right spot, or is it supposed to connect to something further up.?

Well I thought I'd heard it all, but not yet. NOW, I've heard it all! You are just pumping the water out the outlet, completely bypassing the powerhead.

The next reply says it but has the wrong term. The upper end of the water tube goes into a rubber grommet about half way up the housing, not really all the way up to the powerhead. Put it in that grommet first, then enter it into the water pump as you reinstall the lower unit.

wbeaton · Mar 30, 2009

Re: 1961 18 hp

That would cause your problem

Sugashane · Mar 30, 2009

Re: 1961 18 hp

F_R said:
Well I thought I'd heard it all, but not yet. NOW, I've heard it all! You are just pumping the water out the outlet, completely bypassing the powerhead.

The next reply says it but has the wrong term. The upper end of the water tube goes into a rubber grommet about half way up the housing, not really all the way up to the powerhead. Put it in that grommet first, then enter it into the water pump as you reinstall the lower unit.

in my defense, that is the way the guy that i bought it from had it set up. I guess i was wrong when i assumed that he knew what he was doing. Looks like i might actually get it right now.....thanks guys!!!

1961 18 hp

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