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I think my 20hp nortrac sucked some air parked on a hill with lower gas level. Won’t start now, and I tried bleeding any air out with cracking the bleed screw. Did this a number of times but no luck, so I cracked the hardline up at the injector, just the first one and turned engine over, but nothing came out. Plenty came out at the bleed screw below (sprayed myself!), and I don’t know what to make of this.
And advice appreciated. Thank you.
Dean -
I assume you put more fuel in the tank. then look at the fuel glass bowl filter, if you have one and make sure it is clean ( look at the fuel color make sure no water is in there) It won’t hurt to drain the canister fuel filter in a glass jar and see what was in there if you do not have glass bowl. replace filter back if was clean if a mess toss out. next to reprime filter at the fuel line that goes to the injector pump crack it open(maybe a banjo fitting) then push the manual fuel pump button till comes out at pump, then crack each injector and turn over till diesel sprays out. do not overheat the starter when doing this. I am sure I forgot something .,good luck
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You can still be out of fuel and the glass sediment bowl will appear full, and this is because the lift pump takes it’s suction from the TOP of the sediment bowl through the screen. All you really need to do is crack the bleed screw and use the manual priming pump until unaerated fuel comes out. That assures that the fuel cavity in the injection pump is full. After that, just a few turns of the starter should be all that is necessary.
And by the way, don’t use GAS in a diesel engine.
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Thank you both.
David,
By glass bowl I assume you mean the sediment bowl? I’ll look at that, but how would I tell if there is H2O in there or not, what color change am I looking for? We did have rain prior to this, but if it is a question of water in the fuel, could that prevent the fuel from getting to the injector?Bob, I have cracked the bleed screw and pumped until unaerated DIESEL fuel has come out (not GAS, thanks for correcting my terminology). I have done this a number of times with no luck. That’s when I opened the hard line to the first injector to check and noted that there was no fuel coming through.
I refilled the tank first thing before I checked anything, so the tank is full.
Again, thanks for your replies and advice.
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If you have a fair amount of water in your fuel you will see it settle out in the bottom of the sediment bowl because the specific gravity of fuel is less than that of water.
So, if you are getting fuel to the bleed screw then the barrel and plungers are submersed. Then the only thing to prevent fuel from getting to the injectors is that the rack is pulled shut (or stuck). Make sure your engine stop cable is pushed all the way in, and that the throttle is set to 1/4.
Also, if you have a compression release make sure it’s not engaged.
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I doubt it would make any difference but instead of breaking the fuel line at the injector do it at the pump just in case something weird is going on if nothing else seems to work. Even try loosening them all at one time briefly to see if one leaks out more than another. which will be subjective to several variances I know . but oh well.
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