Water Pressure Guage

[Esox]

I am going to install a water pressure guage on my '97 150 FICHT. Will a 30psi guage work or does this engine require a 60psi guage? Thanks

 

[rickdb1boat]

Re: Water Pressure Guage

30 will be fine......No need for a 60...

 

[Esox]

Re: Water Pressure Guage

Thanks Rick!

 

[Esox]

Re: Water Pressure Guage

One more question. Since I bought the correct guage I am going ahead and installing it. The instructions that came with the guage are less than helpful. I think I found the right place to connect the hose to the engine but I just wanted to verify that I'm on the right track. On the top of the block on the starboard side right under the TPS there is a plug in the block. Is this the correct place to connect the hose for the guage? Thanks again!

 

[AguaSki]

Re: Water Pressure Guage

Sound like your on the right track by installing to the plug on the block.

Others may not like my method, but here it goes. I cut my water line with a box cutter. Then I installed one of those "T" fittings used in landscape drip lines. From the "T" I ran a line to my guage in the dash. I did use a little sealant around the "T", and I regularly check for leaks. I am now almost an entire season with this installation, and it is working great and leak free. My pressure guage shows a steady 23 psi. I would never advise someone to deviate from the manufacturer instructions, but in this case, I believe my method to be adaquate. You can stick with the manufacturer instructions, but I thought I would offer what I consider to be a suitable alternative.

 

[Silvertip]

Re: Water Pressure Guage

Installing the gauge in the tell-tale is perfectly acceptable.

 

[Esox]

Re: Water Pressure Guage

I installed the gauge and it's working fine. I installed the hose in the block with a brass fitting that came with the gauge.I have 2 psi @ idle and 22psi @ WOT. Thanks for your help.

 

[emdsapmgr]

Re: Water Pressure Guage

2 psi at idle seems low. Did you tee the line, or go direct to the block?

 

[rickdb1boat]

Re: Water Pressure Guage

2 psi at idle seems low. Did you tee the line, or go direct to the block?

Good point. Might not be a new pump.....Now is a good time to change out the pump so you have a good baseline reading. Then you will know by the pressure when it's getting weak...

 

[Esox]

Re: Water Pressure Guage

I didn't see any line that I could tee. There was a plug in the top of the block under the TPS. I removed the plug and installed the fitting in it's place. Pressure comes up to 4-5psi just above idle (1000 rpm or so).

 

[Esox]

Re: Water Pressure Guage

The pump isn't new. In fact, i think it's safe to day the pump is original - 92hrs on engine. I have a pump kit and t-stats that I will be installing this week.

 

[KYHunter2]

Re: Water Pressure Guage

If its the original, your definately running on borrowed time.

I change my pump , every two years, regardless of pressure.

Cheap insurance.

KYHunter

 

[Esox]

Re: Water Pressure Guage

Thanks to all for your help! I installed the water pump kit and t-stats this weekend. Now the water pressure is 9psi @ idle and 27psi @ WOT.

 

[KYHunter2]

Re: Water Pressure Guage

Your readings are almost exactly the same as mine, on a 115 johnson.

I'd say your good to go . Have fun.

KYHunter