My Great Pee Hole Idea (Johnson 85hp)

McGR

Senior Chief Petty Officer
Joined
Jun 19, 2004
Messages
664
Yesterday, I conducted the "maiden voyage" of my recently resurrected '76 Johnson 85hp. The motor ran great, in large part due to the good advice I've received and referenced from this site. Anyway... The one thing I don't like about the motor is the lack of a pee hole. Someone had previously suggested drilling and tapping into the motor. However, at this point, when things are going well, I'm not too sure I want to start drilling into the block. It seems to me that it would be easy to rig a modified automotive flushing tee into one of the two rubber hoses going to the heads. The modified tee would consist of a small, say 1/8" ID, barb type fitting machined and sealed into the tee cap. A length of tubing connected to the fitting would exit the motor. My question is... Is this a good place to do this? Or, perhaps, is water pressure only available here after the thermostat has opened?
 

Dhadley

Supreme Mariner
Joined
Feb 4, 2001
Messages
16,978
Re: My Great Pee Hole Idea (Johnson 85hp)

Youre talking about working in a fairly tight area. I'm not really sure what kind of "automotive flushing Tee" youre refering to but it sure sounds like its going to be a bunch harder than drilling into the water passage. Which is a known proven method. The other thing is that if you read water pressure from somewhere different than everybody else your readings may not be the same. Gets kinda confusing then.
 
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