High pressure fuel line bleeding.

[uscgmatt]

Ive done some searching but am still confused. What is the best way to bleed air out of the fuel system after the injection pump? I have replaced the IP, injectors, and return lines. I also cleaned out the steel lines. Thanks

Matt

 

[uscgmatt]

High pressure fuel line bleeding. DONE

I got the 1028 started today. As for bleeding the lines I found it was easiest to do one side of the engine at a time. I tightened the fittings on the steel line then about 1/4 turn loose (on injectors). Then about 15sec cranking to 1min of stoping to cool, after I would crank I would look at the fittings (lots of little bubbles). After a couple minutes of "cranking" it was all fuel. Tighten all 4 fittings and repeat for the other side. A good battery charger is a must as this would eat alot of batteries. Hope this helps.

Matt

 

[Goatwerks]

Easiest way is to use 2 people,one person on the key, the othersprays WD 40 into the plenum to start and keep it running while bleeding the lines one at a time.
Takes about 10 min and no battery charger. As each line gets bled, it will smooth out and run normal. I've used this method for decades

 

[uscgmatt]

That sounds alot easier. Oh well it will be easy next time.

Matt

 

[CCATLETT1984]

if you are gonna crank the engine, pull the glow plugs, that way you are not building compression. FYI, dont light a cigarette.

 

[uscgmatt]

if you are gonna crank the engine, pull the glow plugs, that way you are not building compression. FYI, dont light a cigarette.

Did not even think of that. Oh well the truck is running now and just needs the trans shift switch tweeked.

Matt