5.3 fuel pump WTF

[kling-on]

ok so MSD 7222 full pumps suck and last 3-4k miles... but the one had had to get to get to round up only made it 300 and cost fawkin $178 so what do y'all run I'm tired of swapin this biatch out ... and I dont have a spare now...

 

[cruiser911]

Stock,GM.. its worth the trouble of using a fuel cell or making modifications to a stock tank... there is an inline pump from mazda, or ford that puts out around 65psi over the counter part. I will ask the local guru that told me about it, and pm you any details I can gather.

 

[rover67]

Yeah, I like what I ended up with.... stock GM in tank pump.


But, I did run a warlbro 225 in line pump for a while and it worked OK. I think that the higher flow in line pumps cavitate and kill themselves. My warlbro pumps were lasting a while, but got hot and loud in a hurry... I tried lots of different in line filters but the pumps cavitated with almost all of them.

You may want to try some of the cheaper low flow options from the local autoparts stores... there is good feedback on them working from other internets sites. Airtex and carter come to mind.

 

[Kurtis]

I know a lot of people use the walbros with good success in a variety of applications. I use a walbro with the tbi inline which isn't as much pressure but I've gotten 15k out of it trouble free and still sounds the same as when I got it. I've also got one on my turbo sand rail and never had any issue, also inline.
I'm sure in tank is the ideal way to run them but if the inlines last as long as I've been getting out of them (yet to have one fail) I like having it easily accessible.

 

[Dynosoar]

Those pumps are great pushers, but do not draw the fuel from the tank (suck) very well. It is a good idea to run a low pressure pump to draw the fuel from the tank and feed the HP pump.


Dynosoar

 

[ntsqd]

Dynosoar beat me to it, you need a Low Pressure pump to feed the High Pressure pump, and you want the LP pump to be placed as low as possible so that fuel in the tank puts a little pressure on the LP pump. This is particularly true if you have a filter between the HP and the tank. In general electric pumps do not suck very well. Forcing them to suck kills them early. A filter between the pump and the tank makes them suck that much harder. Really only need/want a strainer between the tank and the first pump to keep the larger chunks out of the pumps.
Probably don't need as much as what I did in my Wallace build thread, but if you're an anal belt and suspenders type.....

 

[Elbert]

walbro.... I have the same one I bought when I did my engine swap...mounted to the frame , driver side close to rear tire area.

Based on my experience I would either use a external walbro pump or figure out how to setup intenral gas tank GM OEM pump.

I've never had any issues with mine and I don't think I've even changed the fuel filter.

Correction....passenger side frame rail.

 

[MANUCHAO]

With all the issues that these pumps are or have given yah. I would run a walbro internal pump in a 62 tank. I ran this for 3 years with out any issues.... Very quiet n still in the tank....although I dont use that set up any more....
Let us know what you end up with.....

 

[kling-on]

I guess I need to mod up my Longrange tank for a stock pump and a 7222 to fill in the gap

 

[Elbert]

I don't know why you would need two pumps? Mine has worked fine... I have one walbro fuel pump, one GM large fuel filter between engine and pump (high pressure side) one small small earls fuel filter between the tank and the fuel pump (low presure side). I've not had any problems that I can say are fuel pump related.

 

[ntsqd]

The problem is the filter between the high pressure pump and the tank. You really only want a strainer there. The finer the filtration the more of a restriction the filter becomes. Since this type of pump is poor at suction to start with, increasing the restriction on the suction side is a move in the wrong direction. Going to an in-tank pump, with a strainer on the inlet, is one solution. Putting a low pressure pump between the tank and the HP pump is another, though now the LP pump is the one that will fail first due to any junk in the fuel and no strainer. If you can add or build a strainer (inline or otherwise) I would strongly suggest it. I was very surprised to find that FJ60 fuel pick-ups do not have one. I've no idea about a 62 system.

One approach would be to simply use a 62 tank & pump assembly to feed the external HP pump. That gets you a strainer (I assume 62's have them) and a 'low pressure' pump feeding the HP pump.

 

[muddogbob]

With all the issues that these pumps are or have given yah. I would run a walbro internal pump in a 62 tank. I ran this for 3 years with out any issues.... Very quiet n still in the tank....although I dont use that set up any more....
Let us know what you end up with.....

What model Walbro are you running? This is exactly my plan for my 5.3 swap!

~Bob

 

[phishincruisin]

Like Elbert I'm running a stock 60 tank, Earls filter, Walbro 255, GM vette fuel filter/regulator and then to the fuel rail. I haven't had any issues with it in about 12k mies over the past year. Don't really notice the noise of the Walbro, but its hard to hear much over my exhaust...

 

[kling-on]

Were on the frame are y'all puttin the pumps I have buddy telling me I need to do the filter screen flip AND move it to he front of the truck right now it's at the passanger rear spring mount

 

[Kurtis]

You want it as close to the fuel tank as possible and below the tank.

 

[CruisinFJ60]

so the one you bought in mason died already?


Pump needs to go as close and as low as possible to the tank. frame rail is fine for height. looks lke your filter is before the pump too... if so move that thing asap. a very course rough mesh is all you need before the pump the filter ALWAYS goes after the pump to filter debris out of the injectors. like others have said they push better than suck so you want as little resistance as possible on the suction side stuff on the pressure side aint no big deal.

 

[ntsqd]

Were on the frame are y'all puttin the pumps I have buddy telling me I need to do the filter screen flip AND move it to he front of the truck right now it's at the passanger rear spring mount

Where I mounted mine:

 

[Elbert]

I don't have a good picture of mine (where its located)..but its just a few feet or so from where the rubber fuel hose connects to the hardline that feeds the tank , as I recall the area inside the frame rail but generally above the rear tire... my fuel pump is attached to the frame rail just about 2feet or so down from that location. You can hear mine at idle but its not bad (does not bother me). The fuel pump is bascically down stream from the tank so I don't think it really has a tough job of pulling fuel from the tank...mine has lasted this long without issue.

My truick is at a friends shop righ now or I would get a pic for you.

 

[kling-on]

Where I mounted mine:

I don't have a good picture of mine (where its located)..but its just a few feet or so from where the rubber fuel hose connects to the hardline that feeds the tank , as I recall the area inside the frame rail but generally above the rear tire... my fuel pump is attached to the frame rail just about 2feet or so down from that location. You can hear mine at idle but its not bad (does not bother me). The fuel pump is bascically down stream from the tank so I don't think it really has a tough job of pulling fuel from the tank...mine has lasted this long without issue.

My truick is at a friends shop righ now or I would get a pic for you.

Looks and sounds like the same place I have mine y'all have the filter before or after the pump ???

 

[mwalls54]

Get a inline walbro 255 and put the filter between the fuel rail(motor) and the pump and never look back. I have been working on and modding these motors since they came out in the late 90s and I haven't seen many msd pumps do good.