1969 johnson 9 1/2 cooling

[pafree]

i changed the water pump and still no tattle tail. i talked to a guy and he told me to pull the thermostat and check for garbage. he said because the water temps around here don't reach freezing (not that i would be out on the water anyway) to leave it out. he said if i still dont get anything then the duct inside the engine could be clogged. he said it could be cleaned out but it was not a fun job. any tips (tools, chemicals, etc.) if i get to that point?

 

[oldcatamount]

Re: 1969 johnson 9 1/2 cooling

I wouldn't advice to run your motor without a thermostat. It's in there for a reason and has nothing to do with the temperature of the lake water. The motor is designed to run the best at around 120 degrees and that's the function of the thermostat. My suggestion is to look at your impeller again and double check the installation. You may have a bad grommet that's leaking.

 

[James R]

Re: 1969 johnson 9 1/2 cooling

Oldcat is telling you true about the thermostat.
If you did not rotate the drive shaft clockwise when pressing the pump housing over the impeller then the blades are not in the correct direction and no pumping will occur. If the key is not located in the impeller, then no water. If the seal in the top of the pump housing is shot then no water to the motor. If the water tube is not located in the pump housing then no water. If the washer and or the 'O' ring at the top of the water tube is missing or damaged, then no water. If the tube is misshapen at either end, then no water. If the pump is not below the level of the water, then no water. If a previous impeller failed and came apart then there could be debris blocking the waterways.
You can pull the thermostat cover off and remove the thermostat, start the motor and see if you get wet. If you do then the pump is probably working but it doesn't tell you just how good the pressure is.
I would take a look up the exhaust tube just to make sure it is not blocked.

 

[Wishiniwuzfishin]

Re: 1969 johnson 9 1/2 cooling

Are you looking for a "pee stream" tattletale or are you looking at the exhaust ports on the top rear of the exhaust housing underneath the powerhead?

Your motor doesn't have what I think of when you say "tattletale". It doesn't have a special fitting to make the "pee stream". It should spray water out of the exhaust ports though.

Sorry if I misinterpreted your post.

 

[pafree]

Re: 1969 johnson 9 1/2 cooling

i screwed up now. i was taking the cover off the thermostat and broke two of the three loops that hold it down. anybody have a source to get a replacement? while i had it apart, i looked at the thermostat and above and below it was dry. i ran the motor yesterday evening and would think it would at least be wet. thermostats don't cost too much so a replacement will be ordered.

while the thermostat and cover was off, i started the motor and NO water came up. question about the water pump housing. it is a little rough/pitted. can or should i dremel tool it smooth? is there a diagram on how the pieces should be put back together? i put i together how it came apart and it might not have been it first rodeo.

thanks for the replys.

Wishiniwuzfishin you are correct. the water should out the exhaust.

 

[58rude]

Re: 1969 johnson 9 1/2 cooling

Drop the leg and put a water hose to the tube going up. You should see water comming out of the thermostat housing then. If you do, you know you still have a pump issue or the intake for the pump is clogged up. If you don't, you have blockage in the tube, or in the powerhead. You will have to pull the powerhead and see if the hole is clogged that the tube feeds.

 

[pafree]

Re: 1969 johnson 9 1/2 cooling

Drop the leg and put a water hose to the tube going up. You should see water comming out of the thermostat housing then. If you do, you know you still have a pump issue.

ahead of you on this one. i got water coming up.

If you don't, you have blockage in the tube, or in the powerhead. You will have to pull the powerhead and see if the hole is clogged that the tube feeds.

i put water through the hole leading to the engine where the thermostat is and got water out of the exhaust.

is there another hole that is past the thermostat?

i agree that i still have a water pump issue.

 

[oldcatamount]

Re: 1969 johnson 9 1/2 cooling

There is a small pin/key that connects the impeller to the drive shaft. Is it possible you don't have that pin engaged correctly? They can be a nuisance to re-install, that's why I'm asking.

 

[58rude]

Re: 1969 johnson 9 1/2 cooling

Well, sounds like intake to pump is stopped up, keyway is not engaged, tube not lined up with pump, or pump is installed backwards.

 

[Joe Reeves]

Re: 1969 johnson 9 1/2 cooling

Dismantle the water pump and inspect. Sounds like something was overlooked.

 

[kfa4303]

Re: 1969 johnson 9 1/2 cooling

I agree with Joe Reeves, and not just b/c he's always right. It sounds like the passages are clear, but the pump isn't working quite right. Double check it again to see if anything is out of place. Here's a video that might help you to replace the impller too. Keep us posted.

http://www.youtube.com/watch?v=Fj1c4oYpHAw

 

[boobie]

Re: 1969 johnson 9 1/2 cooling

Those mtrs had a history of the upper water tube grommet swelling up and blocking off flow to the p/h. Maybe that's your prob.

 

[James R]

Re: 1969 johnson 9 1/2 cooling

Parts are still available through your dealer.

 

[pafree]

Re: 1969 johnson 9 1/2 cooling

Parts are still available through your dealer.

my dealer sales gold plated stuff with prices to match. is there a good online supplier?

 

[James R]

Re: 1969 johnson 9 1/2 cooling

Boats.net

 

[kfa4303]

Re: 1969 johnson 9 1/2 cooling

you can find lots of parts right here at iboats.

 

[pafree]

Re: 1969 johnson 9 1/2 cooling

Boats.net

their site show it is a obsolete part and the online sales tech gave me a phone to try. 1-847-689-7090. the part number is 0309581. would one from a different year work? i will search further after the first when i get back from our trip. i will use my new trolling motor to move my 14 foot johnboat around in the canals behind the park. i will be able to sneak up on the reds and flounder easier.

question. does the cup/cap hold the thermostat in? my fab skills are pretty good and i could make one if i can't find one.

 

[James R]

Re: 1969 johnson 9 1/2 cooling

The cap holds the 'stat in. The seal should still be available.
Google outboardpartsplus. They run on Ebay and have a load of used parts.

 

[boobie]

Re: 1969 johnson 9 1/2 cooling

I "sit" corrected. It was the 9.9 and 15 hp mtrs that had the upper grommet swelling up probs. Not the 9.5. Had a brain f*#t. Sorry.