Help Priming a 6.2 it ran out of fuel. Please [Archive] - Diesel Place : Chevrolet and GMC Diesel Truck Forums

: Help Priming a 6.2 it ran out of fuel. Please


jcavender
04-10-2008, 03:13 PM
Theres no pump handle to prime it its an 1982 6.2l diesel.

MrBanjo
04-10-2008, 03:58 PM
check this out
http://www.dieselplace.com/forum/showthread.php?t=87582

DieselPro
04-10-2008, 09:50 PM
Fill filter with fuel and charge up batteries. It will crank. Might even crack the fuel lines to help get the air out.

LOW ONE
04-11-2008, 11:43 AM
definatly crack fuel lines it will go much faster. crank untill nice and wet then reconect lines and try again it should fire. had to do this on my cedes once.

Bigboytoys
04-11-2008, 06:28 PM
I would unplug the injector pump. The big pink or red wire coming to the top of your pump. Then open the air bleed on the to of your fuel filter. Crank till fuel comes out and close the bleeder. Then crank for another 40 sec. This will pass fuel through the injector pump. Plug in your pump and crank again. It will cough and splutter and throw a fit but should clear it's self. Don't crank for long periods unless you like buying starters. Let it cool in between. If you have to cool it while the bleeding the filter close it till your ready to go at it again. p.s. it can be a pita

BlueBurby1
04-11-2008, 08:58 PM
wtf are you driving that has a ****ing pump handle from the 80's

Joseph Wesolek
04-12-2008, 04:41 PM
When I put my new 6.2 in I asked about priming. It was easy with little cranking. Just pull return line on IP put 4 psi into return lines, not IP open bleeder on fuel filter It will leak fuel as air goes to fuel tank. Fill up a soda bottle, Shut bleed, let air back out of return lines re install line engine should start right up in only a couple cranks. MY new engine did it two cranks. Best way i found to bleed fuel system

wildphil
06-15-2008, 04:19 PM
I would unplug the injector pump. The big pink or red wire coming to the top of your pump. Then open the air bleed on the to of your fuel filter. Crank till fuel comes out and close the bleeder. Then crank for another 40 sec. This will pass fuel through the injector pump. Plug in your pump and crank again. It will cough and splutter and throw a fit but should clear it's self. Don't crank for long periods unless you like buying starters. Let it cool in between. If you have to cool it while the bleeding the filter close it till your ready to go at it again. p.s. it can be a pita

I am trying this method (I do not have an air tank) to prime my truck and no fuel is coming out of the bleeder.

I was going down the road one day and smelt burning wires for a min or two. The very next day, the truck up and died and would not crank back up. I tried to switch my inside switch from one tank to the other (second time I had used it, just got the truck) and it broke apart and fell into the floor. I replaced it, and pulled the lines from the fuel pump to check and see if it is working and it is sucking and blowing fuel/air fine. When I am cranking the engine with everything closed, air pressure is building up within the fuel tank that I have it switched to (right side).

I think somehow the inside switch went bad, causing no fuel to make it to the engine, and it drove about 10 miles with only the fuel in the lines and filter. Now that I have replaced it, I just need to prime the system.

Please let me know if you think it may be something else. I dont want to kill the starter cranking it so much. I am resting the starter for about 30 min after each cranking attempt.

Ohh, this is my first post to. I have read this site for years, just never posted to it.

Diaric
06-15-2008, 05:58 PM
wtf are you driving that has a ****ing pump handle from the 80's

some of the instructions for early cummins show a manual pump up, to help prime

BlueBurby1
06-16-2008, 07:47 PM
ahhh well....i'm a gm man so go figure dodge would be behind the times lol

farmer0_1
06-16-2008, 11:30 PM
all my john deeres out of the 70s and 80s have a pump handle. sure saves starters. and so does my dodge cummins.

Bigboytoys
06-18-2008, 02:01 AM
An air tank would work so slick but don't got one. So you've changed the switch and still no fuel. I'm a little confused about air pressure building up in the right tank, could you explain more? What happens when you pull the fuel line off the outlet side of the selector valve does any fuel come out? What about the inlet lines any fuel there? Maybe try by passing the selector valve and hook the outlet line direct to the tank with fuel. Unless your cranking till the battery's are dead 30 min cool time is a little excessive. Crank for a min then cool it for about 3-5 and it should be fine.