Need help...adding a water pressure gauge 2004 Johnson 175

[Wolfepack]

Looking for some help on adding a water pressure gauge to a 2004 Johnson 175hp engine. Model J175GLSR s/n G05065466

1st question...what type of pressure will I see at WOT. Been doing some research and found it could be over 30 psi, which would require a 60 psi gauge. But I am not sure and would like to buy a the proper size gauge.

2nd question....where do I attach the tubing to the engine. Is there a plug to remove or do you "T" into the pee hole tube.

Thanks
Wolfepack

[RUSTY63]

Port or Starboard cylinder head ....there is a plug on either head that you need to remove to install the fitting for the water pressure gauge.


As far as pressure.....above 15 PSI at WOT would be acceptable.

[bassslim]

I am doing the same to my 140 and had the same question on the "t". I can tell you that on my teleflex gauge, it says that a 6cyl requires the 60lb gauge.

[Wolfepack]

bassslim,

I contacted Teleflex and they told me according to there "instruction sheets" a V6 Johnson would require a 60 psi gauge. Teleflex still didn't know what the pressure would be at WOT. Guess I better go with the 60 psi instead of pegging a 30 psi gauge.


Wolfepack
90 Champion 184SCR
04 Johnson 175

[bassslim]

at least if its pegged you know you have water pressure.

[Wolfepack]

TRUE......but if the gauge starts filling up with water I might be have a livewell where I don't want one.