Return line question

Rupert8

Registered User
Joined
Aug 29, 2023
Posts
54
Reaction score
19
Location
Guerneville, CA
Doesn't get any easier than this


True - and I am the proud owner of a set, as above, with a couple already installed on the return line. And they came with a bumper sticker which is always bonus points in my book.... Thanks. But looking for the fuel pump outlet type and sizing if anyone has it to try to get the hard line replaced today if possible.
 

Nero

HD Diesel nut
Joined
Jan 3, 2022
Posts
2,441
Reaction score
2,475
Location
OR
I guess I misunderstood your question, are you referring to the injection pump return line? Because that is just npt pipe thread, use thread tape.
 

Rupert8

Registered User
Joined
Aug 29, 2023
Posts
54
Reaction score
19
Location
Guerneville, CA
Hi, looking for the fitting specs for the fuel pump outlet (to the fuel filter). Planning to install a rubber hose to replace the steel line with the heater.
 

Old Goat

Full Access Member
Joined
Jan 14, 2021
Posts
1,689
Reaction score
1,670
Location
Northern Nevada
I changed mine to rubber hose several years ago. It`s 3/8" hose. As I remember I used a brass fitting, Barb/threaded. Just don`t remember the thread size.

When you get the hose on, remember to fill the hose with Fuel, ATF etc... before attaching it to the Filter. Don`t need to add air to the system, and cranking on the engine etc...

I use one of those meat syringes the $ store use to sell, really handy. Haven`t seen them since the Covid Scam.

Goat
 

IDIBRONCO

IDIBRONCO
Joined
Feb 5, 2010
Posts
12,410
Reaction score
11,155
Location
edmond, ks
Hi, looking for the fitting specs for the fuel pump outlet (to the fuel filter). Planning to install a rubber hose to replace the steel line with the heater.
That's a flared fitting. There's no seal except for the flared end on the steel line. The nut is just to hold the flare tight. You could always cut off the lower end of the steel line that fits inside the lift pimp and put a piece of 3/8" fuel line on that to go up to the filter inlet.
 

Rupert8

Registered User
Joined
Aug 29, 2023
Posts
54
Reaction score
19
Location
Guerneville, CA
Thanks. I struggled to find that fitting locally so reinstalled the steel line from the lift pump to the filter, with a new olive. I had to bend the line slightly to make it couple up with the new pump, however, which makes me a little nervous going forwards. Is it weaker now? But so far so good on a short test drive. Not sure why I had to bend it to get it to join, perhaps the new pump is slightly different in size.

Think I'd still like to replace it with rubber line before too long, perhaps cutting the steel line if necessary, as suggested. Kinda warming up to that idea.


Much appreciated.
 
Last edited:
Top