Oil & Fuel Engine Using Oil

[Egon]

Maybe talk to the Dealer.

 

[DiezNutz]

Are you saying you should work the engine hard to break in properly? I think my manual said to try to not run the engine at high RPM's for the first 50 hours.

Yes, you are both correct.

You can, and should, work the engine hard (after proper warmup!) AND this can be done without using high RPMs. Kubo never said to run it wide open, and he is correct that the rings need pressure (from being under load) to seat. Diesels are slow to seat anyway. You should also avoid running it at a constant rpm for an extended period of time; adjust the throttle occasionally.
At the same time, do NOT lug it... use a high enough rpm to do the job. It needs a load yes, but making it struggle will lead to other damage.

Trying to baby a new engine only causes the rings to wear without really seating, and that leads to compression loss. Eventually they'll seat but some of their useful life will be already spent.

 

[sweettractors]

On Engine rebuilds, We always seat rings on the Dyno, while varying the throttle and Dyno load, during the process. Ken Sweet

 

[wdchyd]

On Engine rebuilds, We always seat rings on the Dyno, while varying the throttle and Dyno load, during the process. Ken Sweet

That sounds "Cool":thumbsup:.....are they tested on a test fixture out of the tractor or on the tractor tested thru the drivetrain?

 

[sweettractors]

That sounds "Cool":thumbsup:.....are they tested on a test fixture out of the tractor or on the tractor tested thru the drivetrain?

Through the drivetrain, That lets us checkout the PTO as well. Ken Sweet

 

[sw03]

Yes, you are both correct.

You can, and should, work the engine hard (after proper warmup!) AND this can be done without using high RPMs. Kubo never said to run it wide open, and he is correct that the rings need pressure (from being under load) to seat. Diesels are slow to seat anyway. You should also avoid running it at a constant rpm for an extended period of time; adjust the throttle occasionally.
At the same time, do NOT lug it... use a high enough rpm to do the job. It needs a load yes, but making it struggle will lead to other damage.

Trying to baby a new engine only causes the rings to wear without really seating, and that leads to compression loss. Eventually they'll seat but some of their useful life will be already spent.

I agree for the most...I say use it like you want. I did not follow the manual on the new kubota (BX24) and neither on my old 22. Never had an issues (using oil etc). Even new diesel trucks, cars etc.

My current BX24 over 250 hours does not move off the stick and break-in, what is that...

But, if the guy as a slow break in whom cares. Yea more wear could happen but what is that in the long term? 10000 to 1, not gonna mean a thing. He might get higher wears if he did UOA and some extra fuel lose. I would worry more about the War of the Worlds then this...LOL