cranks but wont start (cold weather)

[v8only]

So my 755 hasnt been started in about 2-3 months and we got a big dump of snow so i pulled the battery and charged it up over night, plugged in the tractor and let it sit for an hour, she cranked and cranked and finally the battery died, so 3 hours later after the battery has recharged the block temp is now 3 degrees Celsius from -20, fuel lines went from -20 to -8 and she still just cranks. I have been letting the glow plugs cycle and it has been cranking fast.

I never had an issue 2 months ago when the weather was similar. I bleed the fuel lines at the filter and at the block, fuel tank has a dose of non gelling liquid.

I will leave it plugged in overnight and see if i get better results tomorrow night.

 

[Scooby074]

gelled fuel filter? and lines?

 

[sunnyside360]

gelled fuel filter? and lines?

Having had the same problem long ago when living in upstate New York this would be my first guess also. I put a heating pad around the fuel filter for 20 to 30 minutes and she started right up. I have since kept additive in the tank year around and have never had the problem again. Good luck getting'er started.

 

[steveschlutt]

If the fuel is 2-3 months old, it may still be the summer blend. Give the additives a little while to work, and try again with a fresh battery. Or if you're more desperate, evacuate the fuel in lines, filter and tank and start with fresh fuel with treatment and/or kerosene. Good luck!

 

[kuboman]

When you crank it is there any smoke coming out the exhaust? If not then like said before likely gelled fuel. If there is then I bet the glow plugs are not working. Put some heat on the fuel filter anyway.

 

[v8only]

The fuel from 3 months ago already had the winter fuel treatment in it as i add it to every tank, and there is smoke coming out of the exhaust not much but theres smoke ill try again tonight the block heater has been on since last night and ill try it when i get home today.

 

[Henri88]

If the glow plugs are not working, it should start with the block heater being on overnight. In the mean time, you could always do a quick check on the glow plug by using a voltmeter on your battery and see if their is a drop in voltage when cycling the glow-plug.

 

[Mechanos]

Hard starting in cold weather is also a symptom of low compression.

 

[v8only]

I know the glow plug system is operating as i tested it, it maybe that my plugs are toast, or that the engine is that cold as stated the block was -20 degrees celcius before i plugged it in.

Wish me luck in 5 hours.

 

[Henri88]

If you know that your glow-plug system is working, then a no drop in voltage while cycling them should tell you that they could be toast. Good luck, hope it starts. :thumbsup:

 

[v8only]

fuel and block were 3 degrees cycled the GPs twice and she fired up, cranked so fast!

thanks im going to assume she was just to cold.

 

[Henri88]

Good news! :thumbsup:

 

[Mechanos]

The design of the x55 series (like many others) has the engine direct coupled to the implement pump. The starter not only has to turn the engine over with thick cold oil, but it is also turning the implement pump which is trying to pump thick cold hydraulic oil. In addition to your block heater, a 100 watt drop light laying under the transaxle will also help starting tremendously by warming the hydraulic oil. They do make dedicated hydraulic oil heaters that screw in in place of the drain plug. These heaters are much lower wattage than a block heater to keep from cooking the oil.

 

[v8only]

thanks Mechanos

 

[cmracing]

If im thinking correctly, that tractor has a cold start sensor... Its located in the block just under where the top radiator hose comes in... I had a 755 a good while back and im thinking that was what my cold weather staring issue was... Bad Sensor..

 

[Mechanos]

If im thinking correctly, that tractor has a cold start sensor... Its located in the block just under where the top radiator hose comes in... I had a 755 a good while back and im thinking that was what my cold weather staring issue was... Bad Sensor..

The sensor you're describing is the water temperature warning light sender.