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I'm the service manager at a Kubota dealership and in my experience the cost to repair almost always exceeds the cost to replace IF you can even adequately repair the block and head. The engines aren't cheap but they come complete. Turbo, dpf, accessories, starter.... Yank the old one out, drop the new one in and you have a completely new engine and much less labor.

Those engines come in a lot of the equipment we rent at the shop I work for. That was a $5000 replacement engine pre-covid. I have repaired 3 in my time at the rental shop, always from being tipped over and then forced to start without draining the cylinder. We have availability through Kubota even though we are not a dealer. I could probably get you parts if you need help in the future.

Make it a two piston engine…

You're dad is absolutely right. It was a great learning experience, and it was fun to watch the process.

That motor probably puts out 30hp max. I reckon if you reassembled the short block with that mark in the bore it would run another 4000 hours even with the bent rod. It's not a high revving engine.

That middle cylinder was such a disappointment. You were so close to saving this motor. Of course it still can be saved if the owner decides to spend the money. Either way, it was a valiant effort.

It's almost a lost art seeing what you guys do and how far your Dad has taken you in learning this trade, KUDOS!!!😊😊😊

So Kubota forces the customer just buy a new engine instead of rebuild. I know you guys probably already do this, but a borescope will show you if the water jacket side is crack or damage.

Maybe a throwaway, but Kubota makes great long living engines and products.

Give it to me, I will take it. You can buy loaded cylinder heads, valves already installed all over the internet. Also you can buy liners for the block pistons and rings. If you saw how I took cylinder sleeves out out you would cringe, Lace each side of the sleeve with a torch and collapse the sleeve, throw the new sleeve in liquid nitrogen and heat the block and the go right in. Those engines are bullet proof and can be fixed with no problems. You are too particular in your analysis. I have 20 of those different size engines in service in my business and have rebuilt many of them and never had to throw a block away. With the advent of Teir4 engines and all the problems they have those old mechanical Kubota engines are GOLD I buy every one I can when I see one for sale.

Funny, my Kubota dealer warned me to NEVER let the engine OVERHEAT!! Several times. Now I see why. Thanks guys!!

Certainly is rare to find any shop that will take on a challenging job requiring a fair amount of skill and resources only to find it is ultimately unrepairable, and then simply consider it an opportunity to gain experience!

I've been in automotive and machine shop work for over 40yrs. You guys are the cream of the crop to level machine shop pros with matching equipment.

Fair prices for a fair amount of work. Gotta love our small businesses with a conscience. Thanks guys and Mom. 😊

Your father is a wise man. Your lucky too have him as a resource and that he lets you try things and learn. Thanks for showing us your journey

I'm a truck driver, I visit a large repair shop that fixes a lot of heavy duty landscaping equipment. My usual work there is taking away old 3 cylinder diesel Kubota engine cores and/ or bringing them new or rebuilt Kubota engines. There is quite a large thriving Kubota community out here

Bummer that it’s a throw away engine. You did great job on the cleaning and diagnosis.

I have a D902 in my Chinese mini-ex and decided early on to add oil press, water temp, low oil press, high water temp and tach instrumentation to monitor what the engine is doing.

Great video! We have small kubota with the same engine.Spent about $1500 for oem parts and machine work due to a faulty air filter.Had to sleeve the center cylinder . The second time cost $1200 for 3 sleeves and minimum parts due to another faulty air. The foam seals on the ends deteriorated within a short time and allowed dirt to wipe the cylinder walls. We changed the entire air filter assembly to a radial seal type with inner and outer filter.Problem solved. Sorry to be long winded but I had flashbacks watching the video.😁 I always enjoy the videos ! Keep up the good work.