1260 doesn’t shut off

[dgwenzen]

I believe the shutoff fuel solenoid is not working. It has a rubber boot and two wires to it. It has a spring loaded plunger under the rubber boot. If i turn the key switch off, the tractor stays running until I press the plunger in with my finger. I removed the solenoid assembly and tested the two wires to it with 12v. Nothing happens. But while it still has voltage and i push the plunger in, it stays in until i remove the voltage, then it pops back out. I can’t find this shutoff solenoid in my service manual. My manual shows a solenoid with an arm linkage.

Anyone have any thoughts about the shutoff solenoid? I can read ISEKI or something like that, but I can’t read the numbers on it. Thanks.

 

[thclimer]

Hopefully others with more insight will reply, below are some threads you might want to refer to:

MF 1260 will not turnoff when key is in the off position

The engine will not shut off after the key is switched off and key is removed. I have replaced the switch and still have the same thing. Have to stall the engine (pop the clutch in 4th gear) in order to stop the engine. The key heats the glow plugs and starts the engine fine. Any ideas?

www.tractorbynet.com

MF 1240 won't shut down

My dad's 1997 MF 1240 won't shut off with key. Anyone have any ideas? Dealer thought it was the starter relay so he replaced that and no change. Seems that when he turns the key off it is not shutting down the fuel to the injectors. Thanks for any ideas! - Chuck

www.tractorbynet.com

 

[ruffdog]

I searched the actual Iseki engine and these solenoids look more like it:

Iseki E3AD1 fuel solenoid - Google Search

 

[dgwenzen]

Am I looking for the E3AD1 for the replacement?

 

[ruffdog]

Am I looking for the E3AD1 for the replacement?

I just looked up your tractor under Tractordata..........

TractorData.com Massey Ferguson 1260 tractor engine information

For that kind of money I sure would confirm it first before buying.

 

[dgwenzen]

I am assuming if working properly that applying 12v to the wires should make the plunger move from the rubber boot end to the other end. I want to make sure I actually need this part because it is not working correctly.

 

[ruffdog]

Many times, a two wire fuel solenoid is grounded through its case. One wire is the pull coil and the other is the hold coil.

 

[dgwenzen]

Thanks. I checked that and there was no continuity from the solenoid base to either wire terminal, regardless of whether the plunger was out or manually held in.

 

[Harry in Ky]

I think it's safe to say the unit is no good. I would suggest you shop for a replacement. Then again, depending on cost of said item, I might also consider mounting a choke or other control cable and just using that instead of the electric shut off. That was the standard for the industry for many years and it still works.

 

[dgwenzen]

Both of these look similar to what I removed. I have the E3CD engine

 

[dgwenzen]

Thanks. The cable idea had come to mind.