Dumb Question?? Where is the **** hole ??

[Kleverrr1]

I have this new to me Johnson 1976 but I don't see a **** hole like my 88' is it the top 2 holes only?

Thank you

 

[bktheking]

Re: Dumb Question?? Where is the **** hole ??

I have this new to me Johnson 1976 but I don't see a **** hole like my 88' is it the top 2 holes only?

Thank you

Wasn't till 77 and yes the exhaust relief holes.

 

[Jeremy1986]

Re: Dumb Question?? Where is the **** hole ??

the water comes out the exhaust hole on the mid section of the motor. there is no **** hole.

 

[tashasdaddy]

Re: Dumb Question?? Where is the **** hole ??

Green is Exhaust relief, and tale tell, should be atleast mist and drops coming out.

red is water pickup

yellow is high speed exhaust.

 

[Kleverrr1]

Re: Dumb Question?? Where is the **** hole ??

I ran the motor in a home made water tank ( 55 gal Drum ) last night. It was on for about a 1-2 mins. and not a drop of water came out of the exhaust relief at idle. I shut it down for the night because I don't want it to overheat. Now my question is does the thermostat need to reach a certin temp. before it open up and the water come out the exhaust relief ?? or should sign of water be there right away. My other engine water is coming out the **** hole as soon as it starts but I not sure about this one. If there should be water so I can order me a water pump kit and install before I start it up again.

Thanks

 

[ezmobee]

Re: Dumb Question?? Where is the **** hole ??

Yes. You probably didn't run it long enough for the therm to open

 

[steelespike]

Re: Dumb Question?? Where is the **** hole ??

I believe water should come out be sure the motor is in the water as it would appear at rest on a boat.At least up to the mounting beacket.

 

[tashasdaddy]

Re: Dumb Question?? Where is the **** hole ??

very true, i use 1/2 to 3/4 up the leg, exhaust will also blow water away from pick up, in a barrel. the water pump must be submerged, it is not self priming.

 

[jasper60103]

Re: Dumb Question?? Where is the **** hole ??

I have this new to me Johnson 1976 but I don't see a **** hole like my 88' is it the top 2 holes only?

Thank you

kleverrr1,

"new to me..." generally means you should check/replace the impeller/water pump. And gear oil is not a bad idea either. Enjoy your new motor!

 

[Kleverrr1]

Re: Dumb Question?? Where is the **** hole ??

I have the water level in the drum about an inch over the cavitation plate so the water pick-up screen are submerged, but the exhaust may be blow water away now that you metioned it. Maybe it I run it with the ear muffs I can get a better result. So should there be water right away or must the motor reach a certin temp. before the thermostat allows the water to flow, I just want to be sure?? I just ordered a new impeller since I am not sure when the last one was put on there, because Yes this motor is NEW to me.

 

[ezeke]

Re: Dumb Question?? Where is the **** hole ??

What HP is this motor?

 

[Kleverrr1]

Re: Dumb Question?? Where is the **** hole ??

It is a 1976 Johnson 70hp

 

[tashasdaddy]

Re: Dumb Question?? Where is the **** hole ??

i don't see where the HP has been mentioned, what HP, some cannot be run on muffs.
also your water level was too low.

 

[bktheking]

Re: Dumb Question?? Where is the **** hole ??

I know on my 76 15hp I have to rev it up quite a bit before anything will come out, this is on muffs and before someone jumps on me for doing it "i'm not worried about blowing it up"

And running in a barrel is always better than muffs.

 

[bktheking]

Re: Dumb Question?? Where is the **** hole ??

It is a 1976 Johnson 70hp

70hp should ok on muffs, it's got the water pickup grates like the newer motors. Shine a flashlight on the pickup and look for debris.

 

[1946Zephyr]

Re: Dumb Question?? Where is the **** hole ??

Yea, your model should work with muffs. water should shoot out below the lower shroud, out the two exhaust holes

TD, nice old Ski Twin you have there.

 

[tashasdaddy]

Re: Dumb Question?? Where is the **** hole ??

if you are think of this picture, it is and older motor, don't even remember what it was, just used it to show, parts. actually the pic came off the forum. but i have several.

running 76 70 on muffs is ok, should get better circulation with muffs.

 

[Kleverrr1]

Re: Dumb Question?? Where is the **** hole ??

Ok, I will run it on the muffs and wait for the thermostat to open so I can see some water run out of the exhaust relief holes. I will still do a water pump replacement and lower unit oil change before. I go out and give it a good run in the ocean.

Thank you all for your help

 

[ezeke]

Re: Dumb Question?? Where is the **** hole ??

Just as a precaution, don't wait too long for the water to spit from the exhaust relief ports. If you let the hose run a minute before starting you should get some water fairly quickly.

Test the cylinder head with your fingers, you should be able to hold them there for a three count anytime the engine is running if the cooling system is working properly.

 

[jiffyboat]

Re: Dumb Question?? Where is the **** hole ??

I have a 1985 70hp and a 76 70hp the 85 come with the water **** the 76 no , what I did was I drilled a hole in the same exactly place of the 85HP and installed a plastic 90 degree pipe and a hose and it **** the hell of the water, of course replaced the water pump impeller before, just in case I like to the water pissing