In anticipation for some future upgrades, I decided I needed to tackle this. Although I had no problems, per se, with the factory system other than the weak LP I did want to get the factory FFM out of the engine bay and clean things up a bit, while adding a better LP and a few other goodies along the way.
To start off, I removed the entire fuel supply line, from the tank to the IP, including the LP and FFM. While I had the tank dropped, I took the oportunity to install the Metrum Rod Fuel Sending Unit from pmdcable:
This is a nice upgrade to the factory float system, and is more of a TLI. My gauge now drops more linear, and I don't get the way over full reading anymore.
While I was in there I removed the fuel sock too.
I then attached an adaptor fitting on the supply line to convert the threads to a -6an male fitting.
Moving on to the pre-LP filter, I used a WIX 33239 fuel filter (32 micron) with the appropriate base for it.
I then plumbed in a Walbro FRB-5.
Then to my new primary filter...WIX 33418 (fuel/water seperator w/ drain....12 micron) with it's appropriate base.
Both filters and the LP are mounted to a piece of 16 gauge steel that I drilled the mounting holes in a welded some flange nuts to the back of to facilitate the removal of any of these components. Then the plate was welded to my inner frame in between the torsion bar crossmember and carrier bearing crossmember. It is about 23" X 9" (L X W).
The plate sits about 1/2" below my frame. My primary filter is for a detroit diesel, and is too long. I don't like the drain fitting sitting that low on my truck, so it will get changed out for a WIX 33123 which is for a 6.2 diesel. That is the same filter as I have, but is about 2" shorter which will be perfect.
After the primary filter, you can barely make out my FP gauge sending unit up there.
From that, it is a straight shot to the IP where I used a 135* hose end screwed into a drilled out adaptor fitting screwed into a drilled out inlet fitting. (Thanks for the fitting Leroy!) I opened up the holes to 5/32" from the stock 1/8".
A while ago I added a Kennedy Diesel lift pump control harness, but could never use it as my factory LP would short it for some reason, but with the Walbro it works great.
I still have some things to finish on it though. I need to:
1) Solder my LP connections ( I wanted to start the truck, so I used temporary butt connectors)
2) Wire my FP gauge..I'm curious what kind of pressures I'm getting now
3) Replace the primary filter with the shorter one
I had been collecting parts for about a month to do this whole thing and have about $650 total in the project, but that includes some large expenses like the autometer FP gauge ($200), Walbro LP ($120), and Metrum Rod ($130). I am very happy now with the setup and now I feel confident to move on to future upgrades.
To start off, I removed the entire fuel supply line, from the tank to the IP, including the LP and FFM. While I had the tank dropped, I took the oportunity to install the Metrum Rod Fuel Sending Unit from pmdcable:
This is a nice upgrade to the factory float system, and is more of a TLI. My gauge now drops more linear, and I don't get the way over full reading anymore.
While I was in there I removed the fuel sock too.
I then attached an adaptor fitting on the supply line to convert the threads to a -6an male fitting.
Moving on to the pre-LP filter, I used a WIX 33239 fuel filter (32 micron) with the appropriate base for it.
I then plumbed in a Walbro FRB-5.
Then to my new primary filter...WIX 33418 (fuel/water seperator w/ drain....12 micron) with it's appropriate base.
Both filters and the LP are mounted to a piece of 16 gauge steel that I drilled the mounting holes in a welded some flange nuts to the back of to facilitate the removal of any of these components. Then the plate was welded to my inner frame in between the torsion bar crossmember and carrier bearing crossmember. It is about 23" X 9" (L X W).
The plate sits about 1/2" below my frame. My primary filter is for a detroit diesel, and is too long. I don't like the drain fitting sitting that low on my truck, so it will get changed out for a WIX 33123 which is for a 6.2 diesel. That is the same filter as I have, but is about 2" shorter which will be perfect.
After the primary filter, you can barely make out my FP gauge sending unit up there.
From that, it is a straight shot to the IP where I used a 135* hose end screwed into a drilled out adaptor fitting screwed into a drilled out inlet fitting. (Thanks for the fitting Leroy!) I opened up the holes to 5/32" from the stock 1/8".
A while ago I added a Kennedy Diesel lift pump control harness, but could never use it as my factory LP would short it for some reason, but with the Walbro it works great.
I still have some things to finish on it though. I need to:
1) Solder my LP connections ( I wanted to start the truck, so I used temporary butt connectors)
2) Wire my FP gauge..I'm curious what kind of pressures I'm getting now
3) Replace the primary filter with the shorter one
I had been collecting parts for about a month to do this whole thing and have about $650 total in the project, but that includes some large expenses like the autometer FP gauge ($200), Walbro LP ($120), and Metrum Rod ($130). I am very happy now with the setup and now I feel confident to move on to future upgrades.