12 valve cummins fuel filter housing

Hello everyone,

I have been looking for a couple days now and cant find anything.

I want to delete the factory fuel filter housing on my 1997 12v. The reason being, it is going to get in my way when I go to make a firewall and install the linkages for a throttle push rod.

I wanted to see if anyone out there has deleted the factory fuel pump on the block, the factory fuel filter and replaced both with just a fass (or similar brand) lift pump. Would this be a bad idea? Has anyone seen any kits to do this?

I see some people relocate the factory fuel filter housing. I guess I can do this, but I still would like to remove it from the engine bay, maybe hide it in the face somewhere.

Sven

Lots of people have installed FASS systems thinking they are an improvement over the stock mechanical pump. They cost seven times as much and are not nearly as dependable, but people buy them anyway. So installing one on a frame rail along with a filter doesn't strike me as being a difficult process.

What is this component in 12v fuel system? Need help...

See this fuel filter delete setup. Keeps a lot of the stock lines and the lift pump but would get most of that fuel filter canister out of your way. Not sure if those parts would still be available new or if you'd have to go junkyard huntin', and not really sure how the routing works, but if the main goal is to get that big 'can' out of the way it might be the way to go.

I did this in my 1950 chevy cummins swap. I can get you links to all the parts I used if you'd like and send some pics as well. just lmk if you need that but basically I bought 8AN line as supply and 6AN for return. I also bought barbed fittings for the pump inlet and return, an 8AN Tee fuel fitting that had a 1/8" NPT hole tapped in it, a 8AN cap, a M8x1.25 to 1/8" NPT adaptor fitting, and a few hose ends to connect to the Tee. Your return line from the p pump is a straight shot back using the 6AN line. The feed goes from the Fass into the fuel Tee. Your injector return line threads into the M8x1.25 to 1/8" NPT fitting and then down into the tapped hole in the Tee fitting. As for the other 2 ends of the Tee one goes to the pump inlet and the other is capped. Two other options you have are to 1.) get a Tee fitting that isn't already tapped and buy a M8 tap to eliminate the need for the adapter fitting, and 2.) run a dual feed into your injection pump as the p pump has the option for this. Instead of capping the one port of the Tee fitting just run a second feed up to the front of the pump and use another barbed fitting. Like I said if you want pics to help explain it or links to what I used just lmk.

To be honest I had a really hard time finding the correct way to do this and the couple other people I saw do similar set ups had confusing write ups on how to do it so if anyone is interested I'll do a full write up with parts list and pictures of exactly how I did it as simple as I can.

I did this in my 1950 chevy cummins swap. I can get you links to all the parts I used if you'd like and send some pics as well. just lmk if you need that but basically I bought 8AN line as supply and 6AN for return. I also bought barbed fittings for the pump inlet and return, an 8AN Tee fuel fitting that had a 1/8" NPT hole tapped in it, a 8AN cap, a M8x1.25 to 1/8" NPT adaptor fitting, and a few hose ends to connect to the Tee. Your return line from the p pump is a straight shot back using the 6AN line. The feed goes from the Fass into the fuel Tee. Your injector return line threads into the M8x1.25 to 1/8" NPT fitting and then down into the tapped hole in the Tee fitting. As for the other 2 ends of the Tee one goes to the pump inlet and the other is capped. Two other options you have are to 1.) get a Tee fitting that isn't already tapped and buy a M8 tap to eliminate the need for the adapter fitting, and 2.) run a dual feed into your injection pump as the p pump has the option for this. Instead of capping the one port of the Tee fitting just run a second feed up to the front of the pump and use another barbed fitting. Like I said if you want pics to help explain it or links to what I used just lmk.

That would be awesome!

I would have figured it all out if I needed to but, I wanted to see if someone already made a kit. Couldn't find a kit so I figured I would throw it up here to see what others have done.

Might be easiest to draw a quick schematic of the set up.

What size fass did you run with this set-up?

I was also considering running one of these, and mounting it to the inside of my frame... But it is rated for 90GPM. So, running a Fass 130GPH or an Aeromotive 130GPH pump seems pretty expensive if my fuel filter housing can only flow 90GPH. Or is this not something I should be concerned about?

also when I mocked it up it was with a Fass 150 but I'm in the market for a new pump anyway. I'm leading towards a Fass 140 as of now. and if you're going to be running the Fass pump you shouldn't need an additional filter really.

Awesome! Thank you.

Just to be clear, this is how it goes

And you used the 6AN line as the return line from the PPump back to the tank? And the 8AN line is used from the Fass to the T-fitting.

Can you post a pic of where the other fittings are used?

you'd need to get another barbed fitting to use the dual feed as well if you went that route. Reuse the banjo bolt from your primary feed on secondary port if you go that route.

gonna go with this instead of the T, and just run a single line to the PPump.

sorry, still confused about the 6AN line. It is going from the PPump to the tank? Where is the 6AN fitting used?

that'll work! I just went with the T to give me the option to do the dual feed if I decide to. the 6AN is just the fuel return line. It does from the overflow valve on the p-pump straight back to the tank

this is the OFV I bought. the 37psi-45psi should be fine for a mild set-up, right?
Not sure what size fass or aeromotive I am going to buy. probably a 150GPH or 130GPH. I think anything above that flow rate would be overkill for my set-up

this is the OFV I bought. the 37psi-45psi should be fine for a mild set-up, right?
Not sure what size fass or aeromotive I am going to buy. probably a 150GPH or 130GPH. I think anything above that flow rate would be overkill for my set-up

yeah that ofv should would. unless you plan on making over 700hp you'll be fine with that size pump.

Thanks a lot, I really appreciate it!

Last question, are you certain that the injector return line banjo bolt is in fact M8x1.25? I am planning on using an 1/8" NPT plug on the union, then drilling and tapping the plug to fit the banjo bolt.

I did this in my 1950 chevy cummins swap. I can get you links to all the parts I used if you'd like and send some pics as well. just lmk if you need that but basically I bought 8AN line as supply and 6AN for return. I also bought barbed fittings for the pump inlet and return, an 8AN Tee fuel fitting that had a 1/8" NPT hole tapped in it, a 8AN cap, a M8x1.25 to 1/8" NPT adaptor fitting, and a few hose ends to connect to the Tee. Your return line from the p pump is a straight shot back using the 6AN line. The feed goes from the Fass into the fuel Tee. Your injector return line threads into the M8x1.25 to 1/8" NPT fitting and then down into the tapped hole in the Tee fitting. As for the other 2 ends of the Tee one goes to the pump inlet and the other is capped. Two other options you have are to 1.) get a Tee fitting that isn't already tapped and buy a M8 tap to eliminate the need for the adapter fitting, and 2.) run a dual feed into your injection pump as the p pump has the option for this. Instead of capping the one port of the Tee fitting just run a second feed up to the front of the pump and use another barbed fitting. Like I said if you want pics to help explain it or links to what I used just lmk.

Can you please send my a pic of the new location of your fuel/water separator and lines coming from your Lift Pump?

To be honest I had a really hard time finding the correct way to do this and the couple other people I saw do similar set ups had confusing write ups on how to do it so if anyone is interested I'll do a full write up with parts list and pictures of exactly how I did it as simple as I can.

Im interested!