Hard Starting Boomer

[GregE]

I have a NH 1630. When I go to start the tractor, after I glow plug it, it takes numerous times of cranking before it will start. If I bleed the fuel system, (at the bleeder screw), it will start quicker.
If I shut it off, then try to restart it, I have the same problem with it cranking all over again.
Any ideas on what is causing this?
Do I need to bleed it at the injectors too?
Any and all help appreciated. Right now my tractor is at my lot 20 miles away, so any input will be tried as time permits.
Thanks so much.

 

[EdKing]

<font color=blue>If I bleed the fuel system, (at the bleeder screw), it will start quicker. If I shut it off, then try to restart it, I have the same problem with it cranking all over again. </font color=blue>

Sounds to me like you have a leak in the fuel system some where. When you turn it off, the fuel/pressure leaks out, causing the hard starting.

 

[IndianaPaul]

Greg:

If bleeding the line is the only means of getting the engine started and you must do so each time, then it sounds as if you have a line that is not seated well or has cracked: air is getting into the line between running. Probably want to check you fuel filter & bowl (make sure it isn't cracked), then check injector lines for a loose fitting.

Just my thoughts, hopefully one of the true mechanics on here can shed some light.

IndianaPaul

 

[Soundguy]

I would deffinately check the fuel bowl and oring for the bowl. Some designs also have orings for the bleed screws... check those as well.

Soundguy

 

[BobinCols]

Like everyone says, you are getting air in the fuel sytem. Normally you think that if it is sucking air the bad area should be wet with fuel but a fitting or hose can suck air and not be wet.

 

[GregE]

Thanks for all the input. I'll tighted everything I can find to tighten. Actually, in hind sight, I had replaced the fuel filter last winter after the fuel gelled. I suspect I may not have tightened the bowl enough. I check this weekend.
Again thanks.

 

[Soundguy]

Good luck, hope thats all it is.

Let us know.

Soundguy

 

[jinman]

I'm not sure where your fuel tank is on your tractor, but if it is not above the engine, you might have a loose connection allowing your fuel to siphon back into the tank. If the tank is above the engine level, just disregard this suggestion. I had a leak in the fuel line on my Dodge diesel pickup and I'd have to crank the engine long enough to pump fuel all the way from the tank before the engine would start. I've never seen this on a tractor, but I suppose it could be possible if the fuel tank doesn't gravity feed to the injector pump./w3tcompact/icons/hmm.gif

 

[tgello]

loosen the nuts on the injectors and crank it over until you get fuel out of each one ,then tighten up and try starting it .some times when air gets in the line it gets trapped at the injector and is pretty stubborn.....tgello