Need help with a balky diesel

fish hook

Deceased
I have a Kubota G3200 lawn tractor with an18 horse,2 cylinder engine.Fuel pump shorted out,ran lines empty.Have repaired fuel pump,bled the lines.and have fuel in the system.It will not crank,when i add ether it kicks back,like it has jumped time.Can anyone tell me how to time it?Any other suggestions?
 
D

Dazed

Guest
I have a Kubota G3200 lawn tractor with an18 horse,2 cylinder engine.Fuel pump shorted out,ran lines empty.Have repaired fuel pump,bled the lines.and have fuel in the system.It will not crank,when i add ether it kicks back,like it has jumped time.Can anyone tell me how to time it?Any other suggestions?

Will not crank, or will not start?

No start, I'd look at bleeding the lines again.

Will not crank is a different thing, look at starter or battery.

How old is the unit?
 

fish hook

Deceased
Balky diesel

Dazed,the unit will not start,cranks fine.Am getting good fuel through engine,MIGHT be sucking air but i can't find it.As to age,old,got it used,no books or any thing to show an age.
 

Jackpine Savage

Veteran Member
Do you get smoke out of the exhaust when you are cranking? If not, you most likely still aren't getting fuel out of the injectors. Some diesels are a bear to get bled out.

Is this the first time you've used ether on it?
 
D

Dazed

Guest
Dazed,the unit will not start,cranks fine.Am getting good fuel through engine,MIGHT be sucking air but i can't find it.As to age,old,got it used,no books or any thing to show an age.

If it cranks, you most likely still have air in the system. (it can be a bitch to get the air out of the injector lines....) Do you get any smoke out of the exhaust while cranking? If not, it's most likely air in the injection system.

If it balks under cranking while using ether, your are using too much ether.
 
FishHook, you say you're getting good fuel through the engine? Does that mean you have pulled an injector and watched while it sprayed, loosened an injector line and watched it bleed/pump, or are pumping diesel through the exhaust? If your injectors are properly bled and pump working now, you may have washed the cylinders on a worn engine, (ether would make that worse), and are not getting viable compression. Did you check compression and is it within specs?
Feed that baby some ATF down the air intake, (not too much, you don't want a runaway), and start it with that, to lubricate the cylinders.
If I read right and you replaced the pump, it could well need drip timing. I have run into some real bears to time properly, and it can be critical in diesel. If you didn't buy the manual, call a service shop, or find a forum for that tractor, and get the instructions, if it won't start up on ATF. I have also started very worn diesels with slick 50 when the compression is shot, but that is an emergency and not a long term fix, as in get one more job done or get it somewhere to work on, or on the truck.

Tras
 
Top