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Proper fuel line air bleeding procedure?

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Old 03-12-2005 | 07:04 PM
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Proper fuel line air bleeding procedure?

Could someone please give a detailed description of the proper way to change the fuel filter and bleed the air from the lines?
I will be changing my filter for the first time, and dont want to wear down my battery by doing something wrong.
thanks
Old 03-12-2005 | 07:19 PM
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Unplug the WIF sensor. Remove the old filter. Check to make sure you get the small o-ring off the pipe stub, and make sure the old gasket is still on the old filter. Move the WIF sensor to the new filter, use Vaseline or motor oil on the new o-ring. Be very careful what tools you use, the WIF sensor is plastic. Oil one side of the center o-ring and put a dab of grease or Vaseline on the other side, then stick it where it goes. Fill the new filter with clean fuel. Oil the gasket. Install the filter. Plug in the WIF sensor. Crack the bleed screw (the banjo bolt on the head that has a smaller bolt head sticking out) and pump the primer until you get fuel out of the bleeder. You may have bar the engine over for the primer lever to work, I do this with a big socket on the alternator nut. Tighten the bleeder. The truck will fire right up.
Old 03-12-2005 | 07:48 PM
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Which bolt do you crack open, the larger one, or the smaller center one?
What is the recommended filter change interval?
Old 03-12-2005 | 07:49 PM
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Small center one. I do mine yearly, I wouldn't run more than 15k on one though.
Old 03-20-2006 | 11:18 PM
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but how do you pump?

another simple question from me:

"and pump the primer until you get fuel out of the bleeder"

how do you pump the primer?

"You may have bar the engine over for the primer lever to work, I do this with a big socket on the alternator nut."

do you mean hand crank the alternator to turn the belt?

(I actually don't have an air problem (yet) but I'm getting ready to convert to waste veggie oil, and we'll be messing with the fuel lines)

Tys
Old 03-20-2006 | 11:26 PM
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You can pump it with your thumb, some guys use a broom handle so they don't have to lean way down there.

If the primer lever just kind of flops loosely, that means the eccentric on the cam is at or near max lift. The engine needs to be rotated a turn so that the pump diaphragm has some travel.

I think the alternator nut is 23 mm. You have to turn the engine backwards because the belt just slips if you go clockwise.
Old 03-20-2006 | 11:30 PM
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Your bleed bolt will be right behind the intake horn ~



Open that bolt about a half turn and work the lever on the right of the pump until no more air spurts out. ~




. . . . What Wanna said.
Old 03-21-2006 | 12:31 AM
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...but with pictures!
Old 03-21-2006 | 08:51 AM
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I usaly fill the filter up with atf and pump the prime lever tell i hear the fuel bypassiing the relef valve and the fire it up!!!.............But i just might try that bleeder next time. didn't no it was even there L.O.L
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