Add water pressure gauge to 1970 115

[tcreech]

I'd like to add a water pressure gauge to my 1970 115. Can I just splice a tee into one of the water hoses between thermostat housing and block?<br />Also, what pressures should I be looking for?<br /><br />Thanks,<br /><br />TC

 

[Mark42]

Re: Add water pressure gauge to 1970 115

According to Teleflex, yes you can T into the water hoses. Also, they say that the tell tale can be used.<br /><br />I ended up connecting to the exhaust cover plug with the hardware included with the kit. <br /><br />Most engines use the low pressure guage, but you need to check your specific model&year because there are a few that take a high (up to 60psi) guage.

 

[tcreech]

Re: Add water pressure gauge to 1970 115

No telltale on this model.<br />Did you have to drill & tap into exhaust cover?

 

[tcreech]

Re: Add water pressure gauge to 1970 115

Also, what kit did you use, and what did it include?<br /><br />Thanks<br /><br />TC

 

[Silvertip]

Re: Add water pressure gauge to 1970 115

I used a Teleflex 30 PSI kit. It has tubing, brass fittings, and generally everything you'll need. If you tap into the exhaust cover you'll need a proper pipe thread tap.

 

[Silvertip]

Re: Add water pressure gauge to 1970 115

I used a Teleflex 30 PSI kit. It has tubing, brass fittings, and generally everything you'll need. If you tap into the exhaust cover you'll need a proper pipe thread tap.

 

[Mark42]

Re: Add water pressure gauge to 1970 115

I used the 30psi kit too. I didn't have to tap the plug hole, but I did end up drilling it out and using an extractor (easy-out) to remove it. Then the brass fitting screws right in. The Teleflex pressure guages come with about 6 different fittings that work on most model engines, hose, tie-wraps, and instructions. If you think it will take more than about 14 feet of hose, buy the hose extension kit too. Basically another length of hose and connector.<br /><br />If there is no plug, then the instructions say to drill and tap, or connect to a water hose. <br /><br />Check out my other post tonight about how I almost pulled the gear case thinking the pump was shot. Bottom line is don't expect a pressure guage to register if the motor is on the hose and not in the water.