Anyone know?

 

The real size is something metric like maybe 12or14mm, BUT a 1/4' NPT (National Pipe Thread) fitting works. With some pipe tape and tightening it down. I have no leaks....yet. Good Luck

 

I thought the pump inlet was 12MM x 1.5

I thought the LIFT-PUMP outlet was the only 14MM x 1.5 fitting in the system.

The 14MM x 1.5 ??can?? be substituted with a 1/4-NPT in the absence of the correct fitting.

It is not the best remedy, but in several attempts can be made to work.

 

The Lift pump output is M14x1.5 Bear, You're right.

The Filter head Inlet is M12x1.5

However I'm not sure what the Injection pump inlet itself is....

 

Correct. Injection pump inlet threads are 12mm x 1.5.

 

i would check the pipe tape often, fuels seem to like and eat away at that stuff, even though it is a compression fitting stock... mine leaks a little from around the tube, all will be fixed one day.

 

If your installing a fuel pressure gauge, doesnt it come off the lift pump, or does it go off the fitting for the fuel filter? And what size would that one be?

 

You want to get pressure when it comes through the filter,

The bleeder screw on the filter head is 1/8 NPT and makes a perfect place to put the fuel psi gauge, easy as that. It's after the fuel has been filtered.

 

Only if it has been re-drilled or replaced with a Geno's bolt .

 

Yes you're right, I forgot i used the bolt LOL.

 

I have done away with the mechanical lift pump and the stock filter head. I just needed the to find out for sure what the correct fitting size was so I can plumb accordingly. Thanks for the help guys, progress on the dually will speed up now.

 

Order all your fittings from Vulcan diesel. Fast shipping and cheaper than GDP

 

I buy all of my fittings from these guys.

They have the best prices and quality, plus they treat me right.


http://www.discounthydraulichose.com...ric_p/9068.htm


JIC/AN is the way to go.

 

I was looking at the tapped banjo bolt on vulcan's site. Anyone used on of these on the VE inlet?

 

Why would you want a banjo there? Go straight in with an AN fitting.