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Fancy fueltration

Nessmuk

Nessmuk

Well-Known Member
Messages
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Location
East Amazonian polar region
What I've got is a pair of fuel tanks, each with a clear plastic 30 micron filter, then a 10 micron racor with water separation filter, then a cheapo Mr gasket pump, then a tank selector valve. Do I need to go to 5 or less micron filtration and do I need a booster pump for my mechanicallyinjected 6.5 turbo diesel?
 
Stock mechanical injection pump 5 psi. Install a gauge so you can see that it never goes below 1 psi going into the injection pump after all filters.

10 microns is the factory filter. You can go smaller, as long as your pressure and volume stays good.

Good luck with the mr gasket pump- they usually dont last very long. Remember it will make noise and not pump properly. Your injection pump can suck fuel through the dead lift pump and keep running, but it wears out the injection pump much sooner.
 
Nessmuk said:
What I've got is a pair of fuel tanks, each with a clear plastic 30 micron filter, then a 10 micron racor with water separation filter, then a cheapo Mr gasket pump, then a tank selector valve. Do I need to go to 5 or less micron filtration and do I need a booster pump for my mechanicallyinjected 6.5 turbo diesel?
Click to expand...
make sure they are rated for diesel. gas filters will plug in a few miles and either leave you stranded or suck the element and cause no filtration.
 
Good to know, all of it. I'll carry a spare pump I have and find better pre filters. I have a Holley pressure gauge, so that'll help.
What pumps are better?
 
Nessmuk said:
What I've got is a pair of fuel tanks, each with a clear plastic 30 micron filter, then a 10 micron racor with water separation filter, then a cheapo Mr gasket pump, then a tank selector valve. Do I need to go to 5 or less micron filtration and do I need a booster pump for my mechanicallyinjected 6.5 turbo diesel?
Click to expand...

Better order:
2 fuel tanks, each with a clear plastic 30 micron filter, then a tank selector valve, then a cheapo Mr gasket pump then a 10 micron racor with water separation filter.

Filter the fuel after the lift pump. The water separator works best before the lift pump.

If it was my system:
2 tanks, selector valve, CAT water separator, lift pump Walbro FRB-5, final filter. The water separator is the most beneficial part to add to our system. It's more important than final micron size. The Walbro is a tough to kill pump rated for biodiesel.

Oil filters and other "Not rated to do the job of filtering fuel" risks clogging the fuel line and/or contaminating the fuel as it dissolves and comes apart or just bypassing and not doing anything. Cold Diesel fuel laced with Biodiesel is not hot engine oil. You got 1 pass on fuel before it's risk of "does damage" is higher where an engine oil filter can filter multiple passes.

THIS is why I say worry about water more than micron ratings:
http://www.thetruckstop.us/forum/th...ulsd-and-biodiesel-this-can-affect-you.35096/
 
I read up on the Walbro, it's not ethanol resistant. I've got it plumbed with the cheapo pump with it's filter, filters, valves and then a pump in the single fuel output.
Those mr gasket pumps are economy for sure. The output nipple pulled right out of one. I pulled both, pipe tapped them, and put in a real fitting. Since their before the filters, if I missed a spec of the nylon I threaded, no harm.
 
Not clear on a relevant difference between Methanol and Ethanol. However the Walbro is B100 biodiesel rated and that is from being able to handle the leftover Methanol in it. The Methanol wrecks the stock and other lift pumps. I have a grave yard of lift pumps from B99 and only the bugs making acidic moisture laden fuel killed the walbros (along with the injectors, IP, fuel tank.). I rebuilt one Walbro and it's still going today. (Parts not available for the higher pressure version.) Thankfully haven't f'd with a lift pump in years. (Finally!)

OEM AcDelco: dead, aftermarket OEM equivalent: dead x5, Carter fuel cooled: dead, OverKill Mallory 140GPH alcohol rated race pump blew shaft seals, brushes wore out once...
 
What I found was that the bellows couldn't hold up to the new fuel blends.
I have two Walbro. One seems complete dead, but the other stills works. The dead doesn't make any houses. Is that one beyond hope?
 
The Filters used on CAT truck and earth mover equipment is as large as it gets. Use the water separator as the trash/prefilters. Use one for each tank, selector valve, pump, final filter. One option: Stop by a CAT house to get all the parts you need for the CAT filters as their filters are special as well as the fittings to the filter heads.

You must have a serious dirty fuel problem to worry about the selector and want big filters. Feeding it from bulk railroad tanker cars?

Racor and some CAT filters have a clear bottom.

https://www.westmarine.com/fuel-filters/racor

http://www.fleetfilter.com/filters/wix-filter-bases.html

http://www.glacierdieselpower.com/dept.aspx?dept_id=08-002
 
I meant a large, but simple, inline filter. Like the type you cut your like and clamp it in and it hangs there. Clear so I can see the filter element. 3/8 hose, large surface area, diesel rated.
 
I thought I might try to find a large 2 micron filter head to fit a racor element and mount it under the hood.
Hoping that would prolong my injector pump life.
 
go to tractor supply. get the goldenrod. get fittings from Lowes where you can spend more for the fittings than you did for the filter. mount it where you want to as a final filter. look through the clear element for trash. drain as needed through the bottom. end your nightmare by spending less than 100 and be done with it.
sometimes i think you need to follow some of the advice given, esp when it's what you asked for. going cheap doesn't have to mean skimping on quality, but after reading some of your threads, it makes me wonder. not trying to be rude, just honest.
remember, your getting the same answers from here:
http://www.dieselplace.com/forum/63...902121-fuel-filtration-fancy-refined-db2.html
 
Well now you've made all sad inside. I feel like rainy, damp and cold. Of course it is rainy, damp and cold today, so that may be part of it ;)
So I'm cheap, I admit it. I spent good money on the racor filters and heads and water bowl heaters and sensors. I don't need to do the same on pre filters.
 
Nessmuk said:
Well now you've made all sad inside. I feel like rainy, damp and cold. Of course it is rainy, damp and cold today, so that may be part of it ;)
So I'm cheap, I admit it. I spent good money on the racor filters and heads and water bowl heaters and sensors. I don't need to do the same on pre filters.
Click to expand...

This be the internet so I can't exactly see what you are playing with or want. The small screw together glass tube fuel filters are a PIA. They clog and stop your engine before you can look at them. A CAT, Racor, etc. sized filter wouldn't even sneeze on what it takes to plug that small mess of a filter. "Been there Clogged that" turned out to be a BAD idea.

Your heater setup: That's all well and good till the cold fuel gels and clogs the first filter, screen, or hole smaller the 1/4" it encounters. The upstream fuel heater will take care of the Racor, except, the cold prefilters in this case would stop up with gelled fuel anyway. Make the racor's the prefilters or whatever filter you can stick a fuel heater in... I am in AZ so I don't worry about heaters until I get high. Then it can get cold... and I worry... I doubt any fuel heaters I have even work. I am not clear on your climate and gel issues if any. Note there is a bowl screen in a Walbro FRB-5 and it is a prefilter that can gel clog.

As an example the only OEM extra filter offered on pickups I know of is RAM and it has a fuel heater in the kit that mounts below the cab. You can order the kit to retrofit or check a box to get it factory.

Again for our primitive injection system replace the injectors every 80-100K. For best pump life add lube to the fuel, better water separator than OEM (you may already have) and when it dies get a new pump with hardened internals for ULSD.
 
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@WarWagon :
I like your responses-- you have had quite an experience!
I'd like to avoid a "lift pump graveyard" like yours and solve *this part of The6.5LVoodoo with a first-strike-- if possible.

-Two things:
*I also have 2 tanks, and (try to) only fill one at any pump. Does the tank selector you mention automatically switch over to tank2 if tank1 is low? Or a switch with two level gauges?
While I'd want to keep a base level above any water and dreck, the ability to *isolate a bad fuel load is attractive. Amazon: Brand/Part#?

-Will check for a heated element/mount for a 30u prefilter-- and an additive-- (tho I'll have to carry a silver cross at a Dodge dealer)
Maybe simplest to call @Leroy ...For a Walbro F-10 (DS4 IP) filters and LP harness, tho no heater is mentioned.
 
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