JD4600 engine 4tne-84

[buckleupbilly]

I have a JD4600. was runnning good after getting started with parts and brake cleaner. Had Head resurfaced and valves ground. Insalled with new gasket and fuel injectors, cannot get it to start. pulled head again, new gasket, same problem any help on this appreciated.. thank

 

[TractorTech]

You were starting it with parts cleaner and brake cleaner????
Are the injectors bleeding fuel?

 

[buckleupbilly]

You were starting it with parts cleaner and brake cleaner????
Are the injectors bleeding fuel?

not sure what u mean. fuel getting to injectors, leeking when loosen nuts

 

[buckleupbilly]

fuel leaking when nuts are loose and trying to start

 

[buckleupbilly]

yes, only way it would start is 1 shot of parts and brake cleaner into intake would start immediately , ran great after that, thanks

 

[dodge man]

It didn’t run great or you wouldn’t be here. You pulled the head again and said “same problem”. Blown head gasket again?

 

[thepumpguysc]

Inj pump.??

 

[Hoss710]

you're not getting fuel. have you checked you fuel stop solenoid? have you used the lift pump to prime the injection pump? it can take some time to get these primed. if it runs with other fuel sources ( aka break cleaner ) then your not getting fuel.

 

[buckleupbilly]

Inj pump.??

ok, installed new injectors, still not starting. do u think it is in the injection pump and could u give me a price on a rebuild? thanks

 

[thepumpguysc]

Whatcha NEED TO DO is take an injector out of the head and hook the line back to it.. now crank the engine and SEE if it’s opening the injector.

 

[redman135]

Do you have electronic fuel control? If so check the electronics are working properly. I once ran into a no fire condition on a JD6910 and it mimiced no fuel perfectly ,fooling the mechanic. The real problem was the electronic fuel control had a partial failure and was not lettting fuel through even though fuel was primed and at the injectors. NZ$9200 was spent overhauling the fuel injection pump. A waste of time, and we still had to buy a replacement ecu. grrrrrr

 

[Hoss710]

is your fuel stop a 2 wire or 3 wire unit ?

 

[buckleupbilly]

Inj pump.??

Whatcha NEED TO DO is take an injector out of the head and hook the line back to it.. now crank the engine and SEE if it’s opening the injector.

ok. thanks for your help.took your advise, no fuel comming thru injector when cranking. rebuild pump? thanks

 

[Hoss710]

check ur fuel stop valve 1st .

 

[thepumpguysc]

If u have fuel up to the pump inlet AND your solenoid is working properly..
Yes, time to pull the pump.

 

[buckleupbilly]

If u have fuel up to the pump inlet AND your solenoid is working properly..
Yes, time to pull the pump.

thanks