Anyone know what fittings are needed to hook up a fuel pressure gauge. And Im assuming you hook it up to one of the fittings on the filter housing. Thanx

 

Here's the fitting you need to adapt the fuel bowl threads to 1/8 NPT


http://www.itpdiesel.com/store.php?c...on=show_detail

 

You can also find a similar fitting at a hardware store. It's a flare fitting, but I can't remember the exact size, maybe 1/4" though. If you take that plug that's in the fuel bowl with you, you can find the right size, and a new o-ring. All you have to do is grind the flare part of it off, so it's flush with the threads. You should come out under $5.

 

The thread form is 5/16" NF

 

I removed the plug on the rear of the fuel filter housing and replaced it with a Boss O-ring fitting with a JIC flare. I put a JIC cap on the fitting when not in use. My fuel pressure gauge kit from MAC Tools will screw on the JIC fitting. The gauge has a rubber seal on the hose similar to R-12 A/C gauge hoses and seals fine. I found the thread size for the filter housing to be 7/16" NF. I got the fitting and cap from my local parts store that makes hydraulic hoses. Any hydraulic hose shop could hook you up with the fittings and hose needed.