More Fitting size questions from the PT pump

[Olly]

Okay, does anyone know what size the elbow is that is on the PT pump which the feed line connects to? My hose between my filter and pump takes a 13/16 wrench can't figure out what size the fitting on the pump is.... Also does anyone know where the cold start prime pump is plumbed into? My truck is an XM818 and a lot of the wiring and plumbing is not stock so I'm trying to weed through it just want to make sure I'm not looking for the wrong size fittings, and lines.
Thanks

 

[simp5782]

Okay, does anyone know what size the elbow is that is on the PT pump which the feed line connects to? My hose between my filter and pump takes a 13/16 wrench can't figure out what size the fitting on the pump is.... Also does anyone know where the cold start prime pump is plumbed into? My truck is an XM818 and a lot of the wiring and plumbing is not stock so I'm trying to weed through it just want to make sure I'm not looking for the wrong size fittings, and lines.
Thanks

Should be a #10 jic so 7/8 or 15/16 wrench. Most likely it's the 15/16. There are some #12 jic males on some feeds on the pumps it's a 1-1/8

The filter head is a SAE fitting since it has the o ring under the fitting so itll be a smaller size wrench"

Note : SAE fittings (base of fitting has a tightening nut) nd DOT air fittings take wrenches 1" 13/16, 5/8, 1/2" 3/8

JIC fittings (fittings with a cone shaped end) are 1-5/16 1-1/8" 15/16 for # 10s 3/4 for # 8s. 11/16 for #6s 9/16 for # 5s and #4s and 7/16 for #2s (2s are rare)

 

[Floridianson]

You have to be care full of what bottom ports the primer is tapped off of. One of the ports is the high pressure and if you open the primer with the engine running it will peg out the primer gage. The problem with that port and pluming the primer to it is if the hose gets a hole it will be under pressure and fuel every where. There was a work order to drill and tap the elbow fitting that is on the PT. That elbow connects the hose to the canister. Look and see if your PT has two NPT plugs on the bottom.

I was reading threads for today after I posted here and look what I found. Here is what I was talking about where they taped the elbow fitting for the primer pump. The other pic shows the port that is high pressure and has the STE/ICE sending unit screwed into the bottom of the PT. The only problem there is if the primer line get a hole the PT will suck air.

 

[Olly]

Thanks for your responses

 

[Floridianson]

You could also just do away with the primer pump / flame heater.