Got it Running :) :) Last Question, where is the pee-hole?

[merc_500]

Just wondering where the water is supposed to spit out on a '62 Johnson Seahorse 40HP? <br /><br />The exhaust is the top big hole then there are 2 little holes below it, are these the pee-holes? <br /><br />I looked when it was running but didnt see any water coming out anywhere? But then again i'm not sure where to look? <br /><br />THe impellor is good so maybe something is clogged somehwere, can i remove the thermostat and spray water down there with a garden hose? will that get water through the system to remove anything that might be blocking it?<br /><br />BTW: Thanks for everyones help and tips on getting this thing started. it seems to run and idle really smooth.

 

[jim dozier]

Re: Got it Running Last Question, where is the pee-hole?

I don't think a 1962 Johnson 40hp had a pee hole per se. The water came out the exhaust relief (the thumb sized hole in the back of the middle unit) in a spray and also out the exhaust below the water. But you should see a spray coming out.

 

[merc_500]

Re: Got it Running Last Question, where is the pee-hole?

i have it started in a garbage can so i cant see anything below the cavitation plate. Is this thumb sized hole on the middle unit above the cavitation plate? <br /><br />BTW: When i removed the thermostat after i was running it had had water moving through it. And in that cap that covers the thermostat, this is a good sign rite? This means the motor is getting cooled? <br /><br />Although the head i could hardly touch just after i ran it it was so hot.....

 

[voodoo]

Re: Got it Running Last Question, where is the pee-hole?

replace the impeller and/or the waterpump assy...<br />it may "look good" and move water at idle but change it anyway if it is more than 2 years old..<br />the rubber gets hard and can't keep up with the RPM'S

 

[merc_500]

Re: Got it Running Last Question, where is the pee-hole?

ok thanks guys, after i ran the engine i removed the thermostat cap and there was water all in there. does that mean its getting cooled? <br /><br />by the way, how can i, lets say, "flush" the coolant system? if i remove the stat and spray water down there with a garden hose would that be enough to remove anything blocking it?

 

[ledgefinder]

Re: Got it Running Last Question, where is the pee-hole?

There is no 'pee hole' on the motor. <br /><br />The big hole on the back, not far below the cowling, is an exhaust relief hole (if I am remembering my 40HPs correctly). If the thermostat's working, expect nothing there when the motor is cold, a light mist as it warms up, and a heavier 'rain' when it's warmed up & at higher throttle settings. <br /><br />Your motor may be fine. The motor is supposed to get fairly warm, due to the thermostat (as opposed to the Merc 500s). I don't know what the thermostat opening temp is on the 40HPs. In general, if the outside of the head & cylinders reaches 170 degrees, it's too hot. That's good & hot, IMHO. Most people can put their finger on there for 2-3 seconds, then have to pull away. You can get 'heat sticks' at your local OMC dealer if you want a closer test.

 

[ledgefinder]

Re: Got it Running Last Question, where is the pee-hole?

I'll respectfully disagree with 'middleground'. I can't rest my fingers for several seconds on an OMC with a properly setup thermostat. To my fingers, those walls are pretty hot. Most of my experience is with 1980s-90s V4s.

 

[merc_500]

Re: Got it Running Last Question, where is the pee-hole?

thanks guys i'll look for a mist next time i start it up.