930 gelling up. Need help

806Jr

Member
Hey guys, I have a 930 ck that keeps gelling up on me. I am running a 50/50 mix of #1 and #2 and anti gell additive. I have changed the fuel filters, put pipe insulation on as much of the fuel line from the tank to the filters that I could reach. I have a swather canvas wrapped completely around the front and sides and it seems to stay fairly warm by the filters with this setup. It gelled on me last week at -6f and today at -15f. Any ideas on where to look next would be appreciated. Thanks, DuWayne
 
Add about 3 or 4 gal of gas to your diesel, it will straighten it out. Not recommended with newer engines but will be fine on the 930
 
Did you change all three filters? If I remember right there are the two down by starter and one up above the fuel pump. Is fuel coming out of the tank okay. We had one older tractor from time to time we would take the cap off and blow into the fuel line before the filters and into the tank. Maybe some ice or something in your tank?
 
I will bet you have something trying to block your inlet out of your tank. Eventually, I would pull the shut off out of the tank, but for now, with the fuel cap off, blow air back through the line. Bet it will run for awhile then.
I have a Terrex skidsteer that gells up when it get below 10, and I have to blow back through it. It will run the rest of the day then.
 
From an old hand trying to use a 930 when it's cold, just put an electric pump on and your problems will be solved. With the low tank if it gets less than 1/2 full it won't run reliably in the winter without straight #1 in it. Besides that will make filter changes a snap.
 
Straight #1 in my skidsteer and any of the Tractors I decide to use. I've used my 400 and it likes #1, so does the 1070. I just put in 50 gallons in the fall and that lasts the winter.
 
You may have ice in fuel. We had same problem on 1170. We had line off and changed and dumped filters. Finally put heat for diesel in it and we got through the cold. Let it set after it warmed up and drained water from the tank.
 
JonF and JW are both right. Think of diesel like an oil when it gets cold the flow rate slows a little, IF go the gasoline route make sure you use most of it up before it gets to warm out. I had a good friend that work for Robert Bosch back in the day, trained in Germany clued me in on the gasoline.
 
The whole neighborhood had fuel problems during the last cold snap, and its going to -20 tonight again in SE WI. They are saying the fuel was actually freezing, because there was bio diesel blended in it. I don't know if this is for real or just an excuse. A friend told me they kept the loader running by heating the fuel filters with the torch. Our 2096 froze up on the manure spreader, and the 1896 stopped before it was out the shed door. Luckily the spreader was empty!
 
I have a big power line going through my farm. They are drilling holes for footings 8ft. in diameter and 50ft. deep. They are working these days when the high temp. is only 0 degrees. I asked them how they get that big equipment started in the morning and keep the fuel from gelling. They showed me that have little wrap around heaters for the fuel filters. They run with 12 volts.
Gary
 
I tried that once in my 930. The next spring the injector pump crapped out and cost me $1000. The guy that rebuilt it told me it was diesel contaminated with gas that caused the failure. He could smell the gas, and told me 1 pt would do it. Start saving your pennies for a pump rebuild.
 
Thanks for all the replys, Jon f your right, the dang thing started acting up now that I'm down to a half a tank. I think I'll drain it and dump straight #1 in it for now as its sitting in the middle of the yard and when I get it started and in the shed I will look at putting a electric pump on it. How many psi pump do I dare put on it?
 
Or not, it's been done to dads on and off since 1974. Pump was off sometime in the mid 80s. Hasn't been off since. Needs throttle shaft seals but don't they all
 
806 forget about the diesel antigel, it wont do any good if it gets this cold, Straight 1 fuel is the only way to correct gelling problems when it gets and stays this cold.
 
Take Jon F MN advice. Put in a electric pump under the floor pan. Wire to the key. Never had trouble again winter or summer. Priming the system is simple as hitting the key..
 
we run #2 year round but we have fuel heaters that use engine coolant to warm the fuel before it enters the fuel filters
 
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