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Help, I did something stupid

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SteveB

12-07-2001 15:56:42




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Is anyone familiar with an 850? I have a john deere 850 w/ a yanmar engine. I ran it out of fuel, and I can't get it to start. I cracked the injectors and cranked it for a while, but it just won,t catch. It seems like it wants to run but it seems like it's starved for fuel. What should I do?




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Clooney

12-07-2001 16:11:51




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 Re: Help, I did something stupid in reply to SteveB, 12-07-2001 15:56:42  
Steve, I don't know about the 850 with Yanmar engine but on the 755 with Yanmar & electric fuel pump you have to leave the ign switch on to run the electric pump then bleed both sides of the fuel filter & the fuel line fitting where it enters the injector pump. Look for little slot headed screws on the fuel filter & at the injector pump.



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Frank-in-Tallahassee

12-07-2001 18:39:53




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 Re: Re: Help, I did something stupid in reply to Clooney, 12-07-2001 16:11:51  
My neighbor has a 950, and I don't believe it has an electric pump. I know my 855, which is a 1990, does not.

Does it have a bleed screw and hand lever pump on the sediment bowl? On my 855, I open that screw, and the screw at the pump, then as I pump it up, and when there is no air at the sediment bowl screw, I close the bleed screw, then the one at the pump (keeping hand pump pressure up all the time). I crack one injector line, and crank it. Just a few turns throws out fresh fuel, because I have all the air out from the tank to the pump.

Tighten injector nut, and fire it up.

It really should be that easy.

Is there and electric fuel shutoff realy at the pump, and is it funtioning properly ? That would be a stretch. Since it ran out of fuel, it sounds like a simple case of air in the system.

Check back if still no joy....and we'll get it figured out !

Frank-in-Tallahassee
70D // 855

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Steve B

12-08-2001 05:38:24




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 Re: Re: Re: Help, I did something stupid in reply to Frank-in-Tallahassee, 12-07-2001 18:39:53  
Frank, My 850 does'nt have a bleeder screw or hand pump, It appears that the fuel line goes from tank to filter bowl to injectors. Anyhow, I went out last night and gave it another crack, only this time I left it in gear. After about 4 tries and 100 feet later, she caught and kept fireing. I guess the momentum of the tractor was enough to get the fuel flowing???? Thanks anyway Steve

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Handsome Jim

12-08-2001 16:08:47




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 Re: Re: Re: Re: Help, I did something stupid in reply to Steve B, 12-08-2001 05:38:24  
I don't think it has to be that dramatic Steve, There should be instructions for bleeding the fuel lines in your operators manual in the section where they tell explain changing the fuel filter. Also I put some info on the power steering kit on your previous post. HJ



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SteveB

12-08-2001 17:12:54




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 Re: Re: Re: Re: Re: Help, I did something stupid in reply to Handsome Jim, 12-08-2001 16:08:47  
Jim, I don't own an operators manual yet. I should see one for christmas .. thanks.. Steve



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Handsome Jim

12-08-2001 19:59:29




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 Re: Re: Re: Re: Re: Re: Help, I did something stupid in reply to SteveB, 12-08-2001 17:12:54  
BTW Steve, I sure hope running a tractor out of fuel isn't considered too stupid, I've committed that infraction and time or two myself.HJ



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Dave K. (Fl)

12-09-2001 13:43:07




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 Re: Re: Re: Re: Re: Re: Re: Help, I did something stupid in reply to Handsome Jim, 12-08-2001 19:59:29  
Running a gas tractor out of fuel is no problem. Fuel injected (as in diesel) you need to bleed the air out of everything before it will run right or even start.

Dave



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Not Junior

12-09-2001 15:56:26




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 Re: Re: Re: Re: Re: Re: Re: Re: Help, I did something stupid in reply to Dave K. (Fl), 12-09-2001 13:43:07  
Once when changing filters in my (not green) Diesel tractor, it got air trapped and the battery would not turn the engine enough to bleed. Put the diesel in high gear and pull with the JD M till it fired. Have to admit, the Diesel would cause the M to lug down and it was necessary to release the clutch on the Diesel long enough for the M to catch up again. But it did the bleeding in short order.

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