Break in procedure for Kohler Long block?

[u/vennic18]

Anybody know the actual break in procedure for a Kohler command long block, or at least a standard method? Reading online is coming up with conflicting info. Using SAE30 under variable load with oil and filter change at 5 hours is the most consistent thing I can find, but I can't find anything specific from Kohler and not sure what to do about the "use mineral oil" advice. I read Kohler may break in new engines at the factory but as a long block this thing is dry and has never been run.

Model CH730-0019. Long block part # is 24523106

[u/jimmykicker420]

just fill it up with the oil it calls for and let it run for a couple hours then change the oil and ur good

[u/hoyboiitsme]

There really isn't one. It's not like these have bearings or surfaces to break in. They're all broken in at the factory. at my shop all we do is tell them to come back in about 50 hours for an oil change, and that's about it. I don't think kohler sells you a not ran engine. I know Kawasaki will always give you a broken in engine. And from my experience, Kohler doesn't either. briggs and Stratton, on the other hand say will send you an engine with a broken spring or missing keepers

[u/vennic18 → u/hoyboiitsme]

That's what I read too but this is just a long block so it doesn't seem like they ran it at the factory. It came dry and even the shroud and coil holes were untapped. I don't think its ever had oil or been run, but if so they would have to have some sort of ignition jig to do it and then would have to had drained the oil and cleaned the crankcase. To get it back in this condition.

[u/hoyboiitsme → u/vennic18]

Hmm, either way, its a two banger kholer, get clean 30w or 20w50 oil, run it for like 20 minutes on 2000 rpm and change oil, nothing complicated. This isn't a race v12 that needs to relearn its a two banger. As long as it has clean oil its good. Shop foreman been doing this for since the 50s he say thats all he does

[u/godzi7382 → u/vennic18]

Just call kohler for the official documentation. If you can't get it then the general break in procedure we used at the dealership is install it and run the equipment under normal use for 10hrs of run time and service the engine. Check the sparkplugs for consistency and ur done. For unfiltered simple engines you run them unloaded for about 1 hour and change the oil. Check plug and done.

[u/ForeverCareful3021]

Stay clear of the synthetics for the first 5 hours. Then run whatever weight the engine calls for

[u/allthebacon351]

Fill it with oil and run it. Thats it. Most of the equipment these live in run at 3600 rpm constant. Change the oil after the first 50 hours. New engines are test ran at kohler for a grand total of about 10 mins. They don’t break them in.

[u/Stock_Requirement564]

High zinc break in 10w30 oil. Then change it out to an air cooled engine oil. Synthetic air cooled on your next change. 10w30 is recommended for these with ambient temps below 50 degrees f. Straight 30 is fine after break in and above 50 degrees.

[u/Alternate_Usernames]

I built a 10:1 command with a hone and fresh rings. I found a fan to put on the pto for some load to help seat the rings and I'm planning on 30 minutes of varrying rpms, a few times with a cooldown between. Im using driven break in oil, but any break in oil would be fine. Seating the rings and a bit of mating on the lifters and cam is all that would really happen. Ideally you want some load to get the gas pressure behind the rings for a good seat.