GrandL4060 won't start

[dclauria]

So, I'm hoping I can get some help. I've run into this the last few winters, but this time I can't get my tractor restarted. Just FYI, I keep the fuel tank fuel, and I add antigel to every container. I replaced the fuel filter and water separator filter last fall. Yesterday I was snowblowing in about 5 deg. F. weather. The engine ran great at full throttle for about 45 minutes, and then started "dogging" down for a few seconds like it's done before. This has even happened in much warmer weather. When it happened last fall, I wondered if it was getting air into the lines. When it happens in the winter I understand it can be fuel gelling. Yesterday it throttled down for a few seconds, then back to full throttle, then again, and finally would usually stall out. I was always able to get it restarted. I parked it in my enclosed unheated pole barn overnight. This morning I turned on the block heater, and then it wouldn't restart - it turns over but no fire. After work I set up a propane heater for about 2 hours, and tried again. I got the engine to start once, but within 5 seconds, it stalled. I removed and reinstalled the water separator, and fuel filter. I went through the fuel line priming procedure. I'm getting fuel through the water separator, and I can hear the "electromagnetic pump" running when I turn on the key. But when I remove the fuel filter bleed screw, I don't have fuel bubbling up through the bleed screw. BTW, I prefilled the fuel filter. From the Work shop manual page. 1-M6, the fuel line from the electromagnetic pump doesn't go directly to the fuel filter. It goes through a check valve, fuel sub tank, fuel cooler, and feed pump. I don't think I'm getting fuel to the fuel filter because I don't see any air/fuel coming up through the bleed screw.
Has anyone else has this problem? Anything else I can try or check - possibly the check valve?
Thanks, - snow keeps piling up here in Northern Michigan so its stressing me out.
David

 

[GreensvilleJay]

yeesh, after reading your post, I'll never complain about the fuel system on my BX23S !!

I'd start at the tank and slowly confirm EACH 'thing' from there to the fuel filter/sep. is getting good fuel flow. Sounds like maybe 1 of those 4 could be the problem. maybe the 'check valve' ? it could be 'stuck' ?

hmm, maybe you back disconnect the '4', back blow LOW pressure air, see if anything comes out ?

The fact that 'it's done this before', does have me thinking 'semi floating junk in tank'. Maybe there's a stoppage in that 'subtank' ? My BX23S has a sliver of plastic, IN the 'exit spigot' of the tank,so no fuel coming from the tank.

Hopefully you'll FIND the reason,soon.......

 

[North Idaho Wolfman]

Look at the AIR filter, I'm betting you will find it full of snow or ice.

NEVER pre fill a fuel filter, you're just asking to send contaminates to the High pressure fuel pump.

Start pulling lines,. before and after the electric fuel pump and see where it stops flowing at.

DO NOT pull any lines after the spin on filter housing.