Komatsu Dozer wont start

[thepumpguysc]

The glow plug are thin rods that screw into the cyl. head in each cylinder, right by the injector & have a wire on it or a connection bar that connects all of them together w/ 1 wire feeding them 12v when activated.
The GP's look like 1/2 a pencil & are about that size around..
OR it might have a larger screw plug into the intake manifold w/ a wire going to it. that heats the air as it get sucked into the engine at starting{when activated}
Google is your friend..

 

[Sawyer Rob]

My FARM tractors are direct injection and they have a single glow plug in the intake tract. It's a different type of glow plug though, not the kind described above.

Unlike my tinker toy tractors, my farm tractors don't need to be "glowed", to start them in most any temperature, even in the winter. (depending on the individual tractor)

SR

 

[KyleB83]

 

[hawkeye08]

I'm not seeing any glow plugs there..

 

[KyleB83]

 

[hawkeye08]

could this be the glowplug?


Maybe flat bar is 12v? does it connect to a wire on one end?

 

[aczlan]

could this be the glowplug?
View attachment 609608

Maybe flat bar is 12v? does it connect to a wire on one end?

It probably is.

Aaron Z

 

[KyleB83]

PROGRESS!!

I replaced the hand primer pump and pumped it about 30 times to bleed the injection pump, and it fired and ran for probably 3-4 minutes before it sputtered and died. I am connecting the battery chargers to it while I sleep and will try to bleed it again before work tonight. Think there may have just been air in the system that I could not get out and hopefully the sputtering and dying was another pocket. Weak batteries now from trying to crank it the last few days wont work like they should. Hopefully in a few hours I can report back that this entire headache was caused by good old air!

 

[thepumpguysc]

That BAR UNDER the injectors is the connection for the GP's.. U can clearly see them..
IF u have a test lite or multi-meter, check to see if they're getting 12v when u turn the key ON..
SOME operate when u turn the key to the LEFT..
I THINK I told u to use the hand primer, way back.. when this 1st came up.??

 

[D2Cat]

If you decide you need to pull the injectors or glow plugs, you need to seriously clean the area first, or you'll have more troubles than now!