It seems like replacing the filter is a pain in the ... Mostly because it's so hard to reach . It feels like a 2' neck and 4' feet arms with 6 joints is what is needed.

From which position are you guys doing it under or over.

Do you remove any engine parts besides the air intake and the passenger side battery? I feel like I'd like to lift the engine out in order to get to it, he,he.

Any advice is greatly appriciated.


Also, as I understand it, the pump suck fuel from the tank and pushes it through the fuel filter. So the fuel coming in to the pump would be under low pressure. And the fuel leaving the pump going to the filter would be under high pressure. Hence the metal line leaving the pump in the bottom pic and the rubber going into pump.

But if you look at the filter pic both incoming and outgoing lines are rubber. Is that kosher? I don't have a lot of experience of cars and it seems llike the previous owner did a lot funky thing to this old beast...


TIA !

stop by the farm some time i have four stock diesels here to compare yours to. if you are just changing the box filter on the firewall i don't remove anything other than the filter. now if you had the spin on filter on the pre 84 rigs then i would complain my 83 secondary filter was the pits to change.

FUEL PUMP PUMP PUMP PUMP PUMP PUMP PUMP PUMP PUMP PUMP,
I'M A MORON, I'M A MORON, I'M A MORON, I'M A MORON, I'M A MORON
PUMP-MORON, PUMP-MORON, PUMP-MORON

I meant the fuel pump, yet i wrote filter - TWICE! I shouldn't have had that shot of whisky before I posted.

both ways i get the most done from underneath but its a toss up. yes it is the pits they had to build everything so close. i never taken the battery out but who knows. as far as filter or fuel pump its just another day. still welcome to change it out in my shop even though you have to use a creeper that stove feels good.

Thanks for the offer farmer. The fuel lines are off and the pump is loose so I'll just swing by when the pump is back in. The sad thing is that the old pump doesn't really look that old. So I'm afraid it might not be the cause of my hard to start problem anyway...

Appearance is no indication...

I find the easiest way to change the pump is from the front underneath. Slide underneath in front of the wheel and it gives you pretty decent access...

By the way, looks like maybe you have a little leak at one of those lines.

The hard steel lines are used for durability. The pressure that pump produces is only 4-7 psi anyway so rubber is fine.

Ok, the evil thing is out. I'm getting some new rubber fuel lines tomorrow. Might as well replace them all. Except, the back one probably goes to the injection pump. And it seems like i'd have to lift the manifold off in order to replace it.

As far as the pump goes I think it wasn't it. I both sucked and blew in both the fuel connection pipes on it and they seemed air tight. Well see tomorrow though...

Thanks guys!

no problem those air leaks can be very hard to find. after you replace those hoses and drive it for a month go back and give each hose clamp a twist because they are just a little loose.

Or better yet, throw the mechanical pump away and put an electric one on, :cool: