How many hours is an engine good for?: Kubota Review  -- Kubota Tractors Discussion Forum and Review How many hours is an engine good for?: Kubota Review -- Kubota Tractors Discussion Forum

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 05-27-2009, 22:19 Post: 163020
Nlight



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 How many hours is an engine good for?

I am trying to replace an cheap Sears lawn tractor, found a nice looking Kubota B7100HST. It appears to be in good condition, has a 60" mower and the hydrostat transmission. The owner does not know how old it is, but it has 1400 hours on it. Its the 3 cylinder diesel model. Admittedly I know little about these, so any advice on what to look for that may go bad, and the number of hours of serviceable life these engines usually have. All responses appreciated. I have 5 rough, steep hilly acres to cut.






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 05-28-2009, 00:30 Post: 163021
auerbach



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 How many hours is an engine good for?

I also have a 60" mower driven by a 3-cyl. After 30 years and 3000 hrs, the engine, without repairs, still works like new. (Maintained by the book. Valves still at factory specs at 10 yrs, very slightly out at 15.)

I've heard a diesel is good for 5000 hrs, but don't know how authoritative that is.






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 05-28-2009, 07:39 Post: 163023
hardwood

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 How many hours is an engine good for?

I'm not real familliar with Kubota engines, but most diesel engines are pretty much the same.
With good maintenece 1400 hrs. isn't a lot. I'd ask for maintence records. If it starts easily and doesn't have excessive smoke the engine is likely OK. Long steady hours are much easier on an engine than one that has been used for short runs where the engine doersn't fully warm up.
I haven't heard of a compact that has needed an engine overhaul from normal use.






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 05-28-2009, 09:08 Post: 163026
greg_g



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 How many hours is an engine good for?

Can't find it now, but I recently read that 100 tractor hours approximates 6000 miles. Assuming it's true, you should be looking at that little tractor in the same light you'd look at a small work truck with 84,000 miles

//greg//






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 05-28-2009, 10:41 Post: 163028
Murf

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 How many hours is an engine good for?

As Frank mentioned, if the machine was well maintained, 1,400 hours is just nicely broken in to me.

Mind you we pretty routinely put that much on our (albeit bigger units) every year.

I have probably much that same 3 cylinder engine in a bunch of our mowers too, they all go 3k to 4k before we trade them in, and they're still working just fine then.

Best of luck.






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 05-28-2009, 21:22 Post: 163039
hardwood

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 How many hours is an engine good for?

It's not unusual for a well maintained farm tractor engine to go 10k or more and I've heard of the little Yanmars going farther than that on construction generators, pumps or compressors. Nine times out of ten something other than normal wear takes them down prematurely like an air filter gone bad, serious overheating, oil cooler leak into the crankcase, etc. Frank.






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 05-29-2009, 09:42 Post: 163049
auerbach



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 How many hours is an engine good for?

Further to Frank's comment, I once talked with a retired lighthouse keeper from British Columbia. Where did power come from? A diesel engine. How long does it run? All the time except for mainenance. Is it all original? As far as he knows. How old is it? It was there when he took the job -- a quarter-century ago.






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 05-29-2009, 13:49 Post: 163058
AnnBrush



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 How many hours is an engine good for?

Quote:
Originally Posted by auerbach | view 163049
How long does it run? All the time except for mainenance.

This is not that exceptional, this is the key



You could add a 5 x exaggeration factor due to the "A guy I talked to" factor, another 5 x factor due to the fact its posted on the Web.

After those discounts its still pretty good.






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 05-29-2009, 15:36 Post: 163062
Murf

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 How many hours is an engine good for?

Maintenance is key, no doubt about it.

Some of the units that I've sold out of the fleet and were bought by people I know are now at 12,000+ hours and still going strong.

I also know of machines that were dead after just 1,000 hours.

As for things like industrial diesels in ships and generators and such, that's a whole different creature. They are built very differently than what we are using in a small tractor.

A friend of my fathers is a retired Coast Guard man and spends his winters in the south, the other 8 months of the year he lives on a converted tug boat that was built in the 1940's for the war effort. The engine in his tug was well over 20,000 hours. It had however had some pretty major work done to it over the years, but it's still chugging along.

Best of luck.






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 06-03-2009, 07:17 Post: 163144
kjehas



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 How many hours is an engine good for?

My BX 2200 has 8500 hours, the engine is running like new, no smoke, no leaks.
The machine has had an easy life at a shopping mall and are well maintenanced.

PS I have som problems with the HST...






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Discussion Boards > Active Subjects > Messages as Posted > Kubota Review Forum

Thread 163020 Filter by Poster:
AnnBrush 1 | auerbach 2 | earthwrks 6 | greg_g 1 | hardwood 3 | kjehas 1 | kthompson 2 | Murf 3 | Nlight 1 | ronald65 2 |




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