YM2210 injectors, fuel pump, problem??

[Fire260]

I think that's a sleeved engine, if the cylinders are too far gone.

Yes, it is sleeved, It is a 2T90, I measured the bore on both cylinders info below, now my measuring devices are not high quality but I think it is close.

 

[careyo63]

WS-90 wet sleeve @90mm I'd be checking the Pistons and if not a lot of wear Hone it and ring it. Worst case new pistons also..

 

[Fire260]

WS-90 wet sleeve @90mm I'd be checking the Pistons and if not a lot of wear Hone it and ring it. Worst case new pistons also..

Going to pull pistons and see what they bring me, just looked in service manual and Im right at acceptable on the liners.
Thanks for your time and help.

 

[Fire260]

Got the pistons out and they are within spec,the rod bearings have some wear so I will change them.

 

[Fire260]

Hey Guys,
Got the engine all back together and running but I seem to still have a fuel problem, this seems to be worse on the number 1 injector, number 2 has it too but not as bad.
With the tractor running and you crack the fuel line at the injector, should you see just fuel coming out, are will there be air in it from being forced around the threads of the fitting?

 

[winston1]

Fuel only if done for several seconds.

 

[Fire260]

Fuel only if done for several seconds.

Hey winston1, thanks for the reply, Mine is full of air, I have no air down to the pump, so will an injection pump that is not right injected air into the system?

 

[winston1]

I can't answer that. Doesn't sound likely to me but maybe the pumpguy will come on board here.

 

[thepumpguysc]

The only thing u can do is, put a clear piece of fuel line from the inj. pump inlet to whatever is in line next..
& SEE if your getting any air at the inlet.. if not.. what about a stuck OPEN injector?? forcing compression back into the injector??
I've seen that happen, but it usually prevents the engine from starting..
To check, pull the stop.. & spin the engine w/ your finger over the injector where the steel line hooks to it.. u should be able to feel "air" if its allowing compression back up thru the injector.
How about fuel flow TO the inj. pump?? unrestricted..??

 

[Fire260]

The only thing u can do is, put a clear piece of fuel line from the inj. pump inlet to whatever is in line next..
& SEE if your getting any air at the inlet.. if not.. what about a stuck OPEN injector?? forcing compression back into the injector??
I've seen that happen, but it usually prevents the engine from starting..
To check, pull the stop.. & spin the engine w/ your finger over the injector where the steel line hooks to it.. u should be able to feel "air" if its allowing compression back up thru the injector.
How about fuel flow TO the inj. pump?? unrestricted..??

I will try the clear hose thing and see what i see, but every time i cheek the bleed screws there is no air. I did put new injectors,fuel filter,fuel hose,seals on bleed screws, cleaned out fuel tank. Fuel flow is good to pump. I will test injectors tonight tonight.
Thanks for your time and help!