Engine/Transmission (1998.5 - 2002) FASS Question

[pharlacher]

This is my first post. I have recieved the TDR and monitored the advise on this site closely since I bought my truck in 99. I can't thank you all enough for all I have learned from you. Thanks again. I just installed a FASS on my 1999 2500. I decided to leave the existing filter and place. I did this for a couple of reasons. First, I like the idea of having a water in fuel warning light and second it didn't appear that draining the water was easy using the FASS water seperator. My truck is running a lot smother and fuel pressure is staying up around 15. 5. I wish I would have bought the 30 pound gage now. Has any one else left the stock filter? Can anyone tell me if I am going to have problems with doing it this way? I just discharge from the FASS into the stock filter and then to the injection pump. Thanks again.

 

[PRout]

Originally posted by pharlacher

I decided to leave the existing filter and place.

First to be fair, when I asked Brad about doing it this way, he recommended eliminating the stock setup, and plumbing straight to the VP44.



There have been several posts of people keeping their stock filter/water seperator/fuel heater inline, and they dont seem to be having problems.



My thinking is if you do keep it, you should definitely go with the upgraded fuel lines between the filter & VP. There are several kits available, one is the Wildcat Diesel maxflow line kit.



The stock lines are very restrictive to the point of being detrimental to the VP. Especially if you have power mods.



The thing that I see most advantagous about keeping it, is if the electric motor ever fails on the FASS while youre way out in the boonies, you can move the fuel line to your original lift pump, and hook its line back to the filter, and you can get home without a tow truck.



Its either that, or keep a spare motor for the FASS.



Also, it would be nice to keep the fuel heater, water sep, and have a filter close to the VP.



Ill probably do that. Its a nice unit, hate to waste it.

 

[pharlacher]

Originally posted by Shortshift

The stock lines are very restrictive to the point of being detrimental to the VP. Especially if you have power mods.

[/B]

Thnank you very much for your help Shortshift.



When you say stock lines are you refering to the trucks or ones that came with fhe FASS? I used the lines that came with the FASS. Should I upgrade from them?



I also kept the supply line from the filter to the pump so if the FASS pump does fail I can contect up the stock pump in emergiencies.

 

[BillGotthelf]

He is talking about the 5 banjo fittings that are located in the fuel line-in and out of the lift pump, in and out of the fuel filter and into the injection pump. There are companies like Geno's that sell larger diameter banjo bolts that allow more fuel to get to the injector pump.

 

[pgleavitt]

You can also call Rod at Wildcat and switch to AN fittings. I would do away with the banjo fittings all together. Too restrictive. You can find him in the Links section.

 

[pharlacher]

Thanks for the clarification. (This web site has to be the greatest resource anyone with one of these trucks could have. ) I will check Geno's and Wildcat. I need to get a direct reading guage also. I have had no luck at all with the electric one. Mounted it off the engine and it still goes batty.



The FASS has made a real difference in how my truck runs. Smoother and more responsive. Checking mileage now.





Anonther question, does anyone know where I can get covers made for the FASS filters and a set of Amsoil remote oil filters? I know they would have to be custom made. I could get dimensions . I am going up the ALCAN higway this summer and I m worried about them being out in the open. Thanks again.

 

[BillGotthelf]

Parlacher-since you have a 99 you can mount the sending unit directly to one of the 2 1/8" npt fittings on top of the stock fuel filter. One is pre filter and the other is post. I had 2 sending units mounted there for over a years with no problems. I eliminated the fatory lift pump and filter when I installed the FASS system including changing all my supply lines to 1/2". I used the stock 3/8" line for my return line.

 

[pharlacher]

Thanks Bill, I mounted the sending unit on top of the filter and got eratic readings. Thought it might caused by engine vibration so I mounted it on the firewall and ran a jumper. I am still getting eratic readings. I am sure I have steady pressure from the FASS. What am I doing wrong?

 

[WadePatton]

seems to me

That taking the fuel conditioned by the FASS/Preporator style filtration system--and then forcing it through those horrible banjos AND another filter stage would reverse some of the good work done by the aftermarket system.



The pump? OH ye with no faith! I've been told over and over by FASS users that there is no way their pump could EVER go out. Now don't start that again.



If I had any worries I'd carry an OEM LP for a spare, but NO WAY would I run conditioned fuel through anything but straight line to the VP inlet.



The gauge--check with another gauge, could be sender issues if electric. Mechanicals need a restrictive orifice to dampen pulses from the VP.

 

[Murle]

I'm sorry but I do not have a "FASS/Preporator " System



I have a FASS system. And I have never seen or heard of any one here that owns one say... . "there is no way their pump could EVER go out. "



But I will say this... . Since I have been using and running my FASS and have been enyoying the way my truck runs so much better than with the stock lift pump..... If my FASS goes tits up in 1 or 2 years..... I WILL buy another one for 600. 00 before I pay 1. 00 for a stock lift pump... .