hello new guy with deuce problem

[Captainbill]

Hello everyone i have a 1970 m35a2 and the truck will not start without help. first let me give you some info on it. Truck ran fine till i went out wheeling in the pines did some water crossing and some recovery work.problem 1 got some funky fuel so i drained it. but i ran the truck 20 or so miles. problem #2 got lot of water in fuel tank at same time as bad fuel. Now i went and drained every thing and washed out fuel tank, as well changed the fuel filters (one on frame and two on block). and flushed the lines. So when you start the truck you need to spray some thing (eg starting fluid, or wd-40) then she starts. but will not stay running unless you have the throtle cable pulled out 3 clicks or more. and the truck is very undered powered now checked the fuel pump and i have flow out of the tank and back to the tank
any one have any clues???? thank

 

[dabtl]

Possible water in the fuel lines? Just a guess.

 

[Big Mike's Motor Pool]

nice work. lacey materials loves deuces lol

 

[m16ty]

You didn't happen to get any water in the intake did you? That could be a big problem.

 

[Big Mike's Motor Pool]

might need to change the fuel filtersa few more times and maybe take the injectors apart and clean them. they might have gunk in them from the bad fuel

 

[Big Mike's Motor Pool]

make sure the fuel line that comes off the copper line on the driverside is not damaged. the fitting out of the bottom of the injector pump if super close to the winch driveshaft. if winching while the truck is off of level ground you may twist the truck enough to catch the line on the winch shaft while operating. i have had my winch shaft banging against my radiator while winching on just slightly unlevel ground. if the line is damaged you may have a small air leak causin poor operation

 

[Big Mike's Motor Pool]

also if you have been running over trees make sure the line under the front crossmember isnt crushed. i crushed mine on my one truck and re routed a new one up outta harms way

 

[Captainbill]

hey mudlord that pic you posted is me

 

[Big Mike's Motor Pool]

i know, i know all lol j/k

 

[Captainbill]

yes i have hit some trees but i replaced that line and have good flow back to tank. hey where did you get that pic from?

 

[Big Mike's Motor Pool]

i seen it somewhere on myspace

 

[gimpyrobb]

I agree. If the fuel tank was emptied, did you use pressurized air to get the bad fuel out of the lines? If not, that might be the problem. I vote to change the filters once more. Turn the power on and let the intank pump push air out of the system by cracking the bleeder ontop the secondary and final fuel filters. Then put a gas soaked rag in the intake where the mushroom cap used to be. The fumes from the gas will keep the motor idling till the air gets out of the injector lines. I doubt swapping the pump will help.