Kubota ZG222 smoking

[woody]

I hope you gave him a good cussing being there was an agreement:smiley_aafz:

nope I think it was a sign so I started working on my Kubota.

 

[woody]

yesterday I tore into the z-turn and found what I believe is a blowed head gasket, it is not obvious but there was a spot about 1 inch long that felt rough to the touch like it had grit on it. thinking that it was sucking oil into that cylinder so I ordered the gasket and will put it back together next week. Also I just made a deal on the Kubota bx2230, the guy said the PTO was bad on it but it will still run and drive just can't engage the PTO just another project to post about.

 

[Kubota 2350]

I have a Kubota ZG222 that started smoking 2 years ago and got worse this past cutting season. I checked with a couple of dealers on a rebuild kit, a new motor or maybe a short block. they said no on the short block, I have not been able to find a rebuild kit and a replacement Kubota motor is 2500 dollars and they want my old motor to destroy. I have not really checked the motor out but it is using about a quart of oil cutting one acre. My question is what do I need to check on this motor and where could I find a non Kubota replacement? the numbers on the motors are KGZ770-E2-M3

What's up with this, if there is no core charge tell them your going to keep it.

 

[woody]

What's up with this, if there is no core charge tell them your going to keep it.

yea I did not think it was right either but two different dealers said it.

 

[woody]

ok got the head gasket on and the motor back together, took a ride down the driveway and did not see any smoke!!! when the rain stops and I have time from my job I'll run it some more and engage the blades to see what happens but first indications are that the head gasket was the problem. thanks for the help.

 

[David_Kb7uns]

yea I did not think it was right either but two different dealers said it.

There is a recall on some of the ZG units from a few years back, carb problems with fire hazard.

Kubota Recalls Riding Mowers Due to Fire Hazard | CPSC.gov

But unless they are giving me a new engine, pound sand my parts.

David

 

[woody]

Thanks David, I have the zg222 but I'll have to check the serial number tomorrow

 

[woody]

Okay I'm sorry for digging up an old thread but hey it's my thread. After I replaced the head gasket and cut the grass one time it did better but the very next time I used it there was smoke every where. I inherited a couple of craftsman mowers so I rebuilt the carbs and have been using them but the other day I tore back into the Z-turn and was going to replace the valve seals but the local Kubota shop had to order them so while I was waiting I decided to have a look a little deeper and pulled the piston when I put the rings back in the cylinder to check the gap I could not believe my eyes so I measured it. the gap for the top ring and the second ring was .250 yep 1/4 inch, no wonder it was using oil.

 

[woody]

picked up my parts today and of course the first thing I did when I got home was check the ring gap and with the new rings it measured .033 hopefully I will get the mower back together tomorrow. the mechanic said it sounds like that side got dusted, but I have not run it without a filter.

 

[Hiptfarms]

What ever happened to the engine on this zg222? Inquiring minds want to know.