Oil & Fuel Air In Fuel Lines

[Flex4]

I just changed my fuel sediment filter on my Jinma 284 and was wondering if it was necessary to bleed the air out of my fuel lines. The reason I'm asking is because after I was done changing the fuel sediment filter, the engine fired up without any problems. As a result it makes me assume that the air bleeds out automatically. Again this is only information I'm trying to gain to familiarize my self with the operation of diesel engines and my tractor in general.

Thanks,

Peter

 

[greg_g]

The fact the engine started right up means you did an excellent job of not letting any air enter the system while it was open. Not everybody's that lucky. Well done!!

//greg//

 

[Diamondpilot]

The sediment bowl will usually self bleed but the screw on fuel filter, looks like a oil filter, is not so easy.

What I do is remove the filter, fill new filter with fresh fuel, screw back on loosely, pump plunger pump on injector pump to bleed(fuel will leak out a filter), tighten filter, start tractor. Mine will usually run for a few seconds then die. Start again and repeat. Mine usually smooths out after 3-4 tries. Some have reported needing to crack the hard lines at the injectors to bleed the air out of them.

I use a Fram P6503 fuel filter.

Just for reference here is the filter I use on the same tractor:

Air= Purulator A42019
Oil= Fram PH3950
Fuel= Fram P6503



Chris