Help on where to hook a fuel pressure gauge Big Cam with a PT pump

@SmallPackage @BoxCarKidd @OLDSKOOLERnWV one of them should be along later. There should be a fitting you can plug into with out needing a T.

 

You are gonna have to port it into the pressure head were the arrow is pointing. What does the stratoflex hose that is already there go to?

 

Fine ### truck BTW!

 

The gauge goes on the side of the shut off solenoid. I don't know where that other line runs to but that plug there is normally plugged and you put a gauge there. You would have to put a T fitting with a plug where that line is in there.

If you are very low on boost I would check your AFC.

 

It looks like you’ve got the NT88 big cam 4. It was the transition or “bridge”.between the NTC and the N14. Only produced for a couple years. 88-90. Other than the 855 cid and the pt pump the parts are only good for that engine. I believe Not much else interchanges. They used different heads, water manifold, water pump, and profile cams than the regular big cams. Been told an N14 exhaust manifold will bolt on but not sure. They had both fixed timed and stc timed available. The timing system was unique as you can see in your pics. It uses fuel pressure seperate from the injector fuel pressure to constently change the timing. That is what that hose you need to tee into does. The Highest rated NT88 was 444.
Does it still have the build tag on it at the front behind the drive assessory pulley just to be sure?

Look for a Cummins service manual specific to that engine.

 

Most Nt88’s had an F designation in the build codes. The old joke back then was if you had the F engine you were.....Well you know what that F meant.

 

That one should be the fuel return. It should tee somewhere with the hose that goes into the return that is coming out of the top of gear pump on the back of the pt. Then it makes its way to one of the tanks.