Komatsu Dozer wont start

[D2Cat]

Does the engine in question actually have glow plugs, or is it an electric intake grid?

I an mot familiar with any direct injection industrial engines with traditional glow plugs.

Indirect injection light duty , and direct injection pickup truck engines, yes, but not heavy duty industrial engines.

I've got a Kubota V2203 engine, 4 cyl. direct injection in a skid steer. It has 4 glow plugs.

 

[KyleB83]

Well I hit a snag.. seems this high quality primer pump only wanted to work once. Tried to prime it again when I got up and it’s not pumping anything. I’m just glad I’ll have a new one tomorrow instead of almost 2 weeks like the last one took to get here.

 

[searcyfarms]

if you are referring to the pump only feeling like it had pressure/resistance when you hand pumped it, that is normal, most all do it that i have pumped on manually, they basically only lift a small amount and you can pump faster than they can move things beyond what you are doing, also if the system is compromised with air/water you will likely have to pump a few times, wait pump, wait, pump etc...............the only hand pump i had on a diesel that worked continuous was on a plunger primer type on a fuel filter assembly it was made like a pump sprayer for weeds that pressurized things.

those little spring loaded flippers on the sides of filters/lift pumps dont do a whole lot for me ;-)

 

[KyleB83]

I pulled it off and can’t even hardly pump it.. something inside let go. I may be at fault, did not know I needed to go slow with it.

 

[thepumpguysc]

I've got a pile of'm.. ANY fuel shop will have 1.. IDK where your ordering them from?? Komatsu??
Its a Diesel Kiki pump.. & u can replace it w/ a Bosch H. primer.. 20.00 + 10.00ship.

 

[KyleB83]

Yeah it was ordered from WPI.. my father in law is a fan of oem

 

[KyleB83]

Ok so the replacement primer pump was installed, bled the air and it did the same thing.. ran for about 2 minutes then sputtered and died. Either it is sucking air somewhere or Im thinking there’s trash somewhere in the system that clogs it up. I am going to look for a way to blow the return line back to the tank incase there is anything in there. My FIL wants to drain all the fuel, and flush the tank out with water.. anyway to avoid that sounds better to me

 

[Sawyer Rob]

Put air pressure in the tank mouth, (rag around air hose) then start bleeding the fuel lines all the way to the pump...

You can even push some fuel into a clean pail, to see what you are getting...

Yes, it takes two people to do it...

SR

 

[ktm250rider]

Check for air leaks in your fuel lines. My excavator had similar issues. All the ones were cracked at the fittings.

 

[KyleB83]

Found a leaking o ring earlier but ran out of daylight.

Also gotta figure out how to unlock the brake pedal lol