P-pump fuel tap?

[Trapper]

hey guys I don't know where to tap off the P-pump to get a fuel pressure reading. What size fitting too. Thanksop:

 

[366ci_cummins]

not sure the size but its the same place as the inlet

 

[Trapper]

I think I might just drill and tap that banjo bolt then.

 

[dzlfarmboy]

I've drilled and tap the top of the fuel filter housings before where there,s plugs in the early 24v trucks but it's just a hole in the casting for 12v's and put a 1/8NPT fitting in there.

 

[KingS]

on the 12v's we have the bleeder screw that is on top of the fuel filter the line to the front you can take that out and insert the fuel pressure gauge there but I have heard a few say that is bounces some there and you may have to put a regulator in line and close it just a little to steady the gauge.

 

[Trapper]

Well I found an old banjo bolt that is already threaded for the overflow valve but I can tap it for 1/8th and I can ust it in the future for my redneck fuel system, Thanks guys

 

[Mo Smoke]

The thread size is 14x1.5mm and I did all my lines in -6an aeromotive fittingsfrom the filter to the pump. The inlet to the filter is a -8an, and feeding the pump is a -10an