Oil & Fuel Repeated Air in Fuel Line

[Hay Pirate]

I've probably bled and primed my JD5520 about 5 times this past week. Everytime it sits for a long time (like overnight), the next morning you have to bleed the air out to get it started.
I can't seem to find the culprit. Anyone have a similar problem?

 

[AKfish]

Hmm... on the high pressure side of the fuel system (after the fuel pump) any noticable seeping? (Forgive the obvious -- I'd guess you've already looked -- but I had to ask...)

And on the low pressure side? I don't know the filter arrangement for your particular tractor but is it possible that you could be pulling in some air at the filter?

The great thing (not really) about diesel fuel is when you add a little dust; you get grease after a bit.

Sometimes you can follow the "diesel grease trail" and find the problem.

Best of luck with your problem and let us know how you get it resolved.

AKfish

 

[Hay Pirate]

Ok, so I looked for what you said before you told me actually, just figured I'd crawl under there and see any leaking diesel. The most I saw was where the diesel gets sucked out of the tank a clamp was a little loose, tightned it and it started this morning, without bleeding.. so far so good. I'll let you know tomorrow morning.
I was thinking it was one of the filters. Theres that inline one that's a PITA and the main one, but both looked good and connections were tight.