M35A3 Anyone added a filter before the pump?

[Eliteweapons]

I am thinking about adding a prefilter to the fuel system on my A3. The only filter in the system is after the pump but before the injectors. I am considering adding a filter before the pump to keep crud out of the pump and to help keep cleanup the fuel that is recirculated to the tank. Has anyone done this already and if so what filter assembly did you use? I didn't see anything posted about this in a search.

Thanks

 

[gimpyrobb]

I have some 30 micron fm100 filters that would be great for that application, if you decide to do it.

 

[Eliteweapons]

Is that a complete assembly or just a filter? I was thinking about getting a 33641 assembly with a 30 micron and mounting it low on the driverside firewall.

 

[MAdams]

The Cat 3116 in the M35A3 doesnt have a injection pump, only a transfer pump which is low pressure. The style injection is HEUI and compresses the fuel at the injector.

 

[Eliteweapons]

The Cat 3116 in the M35A3 doesnt have a injection pump, only a transfer pump which is low pressure. The style injection is HEUI and compresses the fuel at the injector.

I know that. I don't believe I called it an injection pump. I am looking for a filter assembly to keep the pump from getting junk in it and help keep the fuel clean.

 

[gimpyrobb]

Its a complete system. Ill post pics when I get home.

 

[snowtrac nome]

the down fall to the 3116 is air in the system my suggestion is to use a good filter like a racor with no primer pump and o-ring boss fittings

 

[Monkeyboyarmy]

I did.

 

[Monkeyboyarmy]

I made my own filter housing but there are many generic ones out there.

 

[gimpyrobb]

These are what I have. The 2nd one is a 5 micron installed in a cucv.

 

[1967pont]

My 3116 uses a filter under the crank case vent filter between the tank and pump, and the post pump filter that is normally provided on these A3's. My understanding is the A3 had this filter housing installed but it was not used (no filter installed, not plumbed up). With the hoses and fittings used, it sure looks like it was plumbed up from the military. It surprised me when I wrote down all the filter numbers on the truck, then searched on here to verify the numbers and came up with one extra!