B2650 glow plugs not working

lesson49

New member
Lifetime Member

Equipment
B2650
Nov 2, 2019
2
0
1
Oregon Wisconsin
It's WAY below zero and my tractor is now parked outside. It turns over but won't fire. It has always started instantly with glow plugs. Even with the WSM manual, I can't find a procedure for troubleshooting. I'm assuming it's glow plugs. It was running fine an hour before. Location of components for glow plug system from key to cylinder.
 

GreensvilleJay

Well-known member

Equipment
BX23-S,57 A-C D-14,58 A-C D-14, 57 A-C D-14,tiller,cults,Millcreek 25G spreader,
Apr 2, 2019
11,664
5,047
113
Greensville,Ontario,Canada
In the WSM, look at electrical wiring diagram. See what fuse powers the plugs. Maybe there's a 'relay or 'timer' that does the actual power controlling ? Does the 'glow plug light' come on the dash ?
On my BX23S the light is wired in parallel with the glow plugs so if it's on, power IS getting to the glowplugs.

'WAY below zero' , I'd expect 50-60 seconds before glowplugs would be hot enough and that's if there's NO wind ! Owners manual or WSM should have chart of time/temp for starting.
 

Russell King

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Lifetime Member

Equipment
L185F, Modern Ag Competitor 4’ shredder, Rhino tiller, rear dirt scoop
Jun 17, 2012
5,409
1,442
113
Austin, Texas
The glow plugs should be somewhere near the injectors and be wired together with a large wire or bar attached to the top.

They should be getting around 10 to 12 volts on the connection point to the glow plug.

Hopefully you can find out by connecting the positive lead of a voltage meter to the glow plug connection and then the ground wire will be connected to the battery negative terminal. Turn key to position for glow plugs and then read the meter.
 
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jaxs

Well-known member

Equipment
B1750HST
Jun 22, 2023
756
570
93
Texas
"Way below zero". I'll give odds on gelled fuel.
 
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Dustball

Active member

Equipment
2016 B2650HSDC
Sep 15, 2023
312
188
43
Hudson, WI
It's WAY below zero and my tractor is now parked outside. It turns over but won't fire. It has always started instantly with glow plugs. Even with the WSM manual, I can't find a procedure for troubleshooting. I'm assuming it's glow plugs. It was running fine an hour before. Location of components for glow plug system from key to cylinder.
 

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lesson49

New member
Lifetime Member

Equipment
B2650
Nov 2, 2019
2
0
1
Oregon Wisconsin
The glow plugs should be somewhere near the injectors and be wired together with a large wire or bar attached to the top.

They should be getting around 10 to 12 volts on the connection point to the glow plug.

Hopefully you can find out by connecting the positive lead of a voltage meter to the glow plug connection and then the ground wire will be connected to the battery negative terminal. Turn key to position for glow plugs and then read the meter.
Thank you.
 

Saul78

New member

Equipment
B2650
Jan 15, 2024
12
2
3
49022
It's WAY below zero and my tractor is now parked outside. It turns over but won't fire. It has always started instantly with glow plugs. Even with the WSM manual, I can't find a procedure for troubleshooting. I'm assuming it's glow plugs. It was running fine an hour before. Location of components for glow plug system from key to cylinder.
Had the same thing today. I have narrowed it down to no power to the fuel cut off solenoid.

When you turn the key on, can you hear the solenoid click?? If not, you're not getting fuel. I took mine out and bench tested it and it was good. I just don't have power to the solenoid.

I know this is the issues because the tractor starts with out the solenoid installed.
 
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