Break-in of Kohler twin engine
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  1. #1
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    Break-in of Kohler twin engine

    Kohler engine manual suggests nothing other than normal
    100 hr. Oil and filter change.
    I’ve read articles that suggest first oil change at 5 hours.
    Anyone have suggestions for break-in of CH-730(like in Bobcat
    Champion,Ranger etc.)?
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  2. #2
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    Re: Break-in of Kohler twin engine

    No more expensive than it is to change oil and filter in these little air cooled engines I think I would do one at 25 hours. Then at 100 or so I would go full synthetic. IMHO good maintenance is extremely important in this air cooled high rev engines. My old Redface with its low rev, loose tolerance 1930’s design industrial engine is more forgiving in this but I over maintain it as well. Just a personality flaw I have I guess


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  3. #3
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    Re: Break-in of Kohler twin engine

    I'd do one at an hour. Then 10, 25, or 50 before going to the regular schedule.
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  4. #4
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    Re: Break-in of Kohler twin engine

    But don't start with synthetic. Break-in with dinosaur juice first.
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  5. #5
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    Re: Break-in of Kohler twin engine

    Quote Originally Posted by duaneb55 View Post
    But don't start with synthetic. Break-in with dinosaur juice first.
    Does 100 hours sound reasonable for break in prior to full synthetic?


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  6. #6
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    Re: Break-in of Kohler twin engine

    I just put 'em to work, oil and filter at 100 hrs and never had any issues. One of my TB 302's went 3200 hrs. before I sold it, Been through 2 Bobcats and 4 Trailblazers now. Most of these newer engines are machined well enough at the factory there is very little real "Break-in" time resulting in shaved metal etc. If it makes you feel better... change the filter early, that's the important part of the loop. Otherwise I think your just wasting oil. I've rebuilt many heavy duty Diesels over the years and the most important part of break-in time is not allowing them to idle excessively, I recommend they run the trucks one gear lower than normal on hills but that's about it for "babying them", if its a 2 stroke Detroit... Run it like you stole it.

  7. #7
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    Re: Break-in of Kohler twin engine

    I had a great uncle who drove trucks his whole life from the 40’s until he retired in 1976. The last company he drove for had a fleet on Internationals that had 250 Cummins or 238 Detroit Diesels. He said to get yourself in the correct mood to drive a Detroit you should first slam the door closed on your hand to get mad at the truck. Then you were ready to drive one, totally different than the Cummins.


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  8. #8
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    Re: Break-in of Kohler twin engine

    I just changed the oil in my kohler. I did the first one at 40 hrs. I put 10w30 Dino oil back in. The oil filter is to be changed every 200 hrs. When I change the oil filter for the first time, I'll switch to synthetic oil.
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  9. #9
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    Re: Break-in of Kohler twin engine

    Stupid question, why not use synthetic after the first change? I had one that said change the oil after 5 hours then every 50-100 depending on how hard you run it.

  10. #10
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    Re: Break-in of Kohler twin engine

    Quote Originally Posted by mattwelding85 View Post
    Stupid question, why not use synthetic after the first change? I had one that said change the oil after 5 hours then every 50-100 depending on how hard you run it.
    The thought behind that advice, of which I tend to agree, it allows parts to seat and wear in with conventional oil. Any roughness to the internals will smooth out and be better in the long run as opposed to super slick synthetics that don’t allow this wear in process. Having said that some high performance engines like BMW come new with synthetic oil in them. Your welder, your choice


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  11. #11
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    Re: Break-in of Kohler twin engine

    Bought mine for back-up power and occasional welding.
    Is there any advantage to running synthetic oil if I’m going to
    change oil yearly, with low hours on oil?( manual suggests 100
    hrs. or yearly, whichever comes first)
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  12. #12
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    Re: Break-in of Kohler twin engine

    I personally think synthetic is better and it really shines in temperature extremes cold or hot. the base stock being man made not dinosaur oil makes it flow more consistent and protect the engine better IMHO


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    Steve

    Miller Dialarc 250 (1990)
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  13. #13
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    Re: Break-in of Kohler twin engine

    I swapped to synthetic on my 305g at 50hrs. I remember reading somewhere if you swapped to synthetic, wait till 50hrs. It was in a kohler manual. I did change my oil at 25hrs, but with conventional 10w30 and a kohler filter.

  14. #14
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    Re: Break-in of Kohler twin engine

    Could you tell a difference?


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    Steve

    Miller Dialarc 250 (1990)
    Miller Maxstar 140 STR (2003)
    Lincoln SA200 Redface Pipeliner (1966)
    Lincoln MP210 (2015)
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  15. #15
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    Re: Break-in of Kohler twin engine

    Quote Originally Posted by Sparkie1957 View Post
    I had a great uncle who drove trucks his whole life from the 40’s until he retired in 1976. The last company he drove for had a fleet on Internationals that had 250 Cummins or 238 Detroit Diesels. He said to get yourself in the correct mood to drive a Detroit you should first slam the door closed on your hand to get mad at the truck. Then you were ready to drive one, totally different than the Cummins.


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    Yeah, those two strokers really liked to be to be thrashed hard to keep them happy and healthy.

  16. #16
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    Feb 2011
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    Re: Break-in of Kohler twin engine

    No difference really. Except the oil looks cleaner, and it may rev a little quicker. I’m just a firm believer in Mobil 1. it’s the only oil I use, except for delo in the tractors.

  17. #17
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    Re: Break-in of Kohler twin engine

    I run Mobil 1 in my gas stuff. Rotella T6 in my Kubotas


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    Steve

    Miller Dialarc 250 (1990)
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  18. #18
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    Re: Break-in of Kohler twin engine

    Quote Originally Posted by diesel625 View Post
    I swapped to synthetic on my 305g at 50hrs. I remember reading somewhere if you swapped to synthetic, wait till 50hrs. It was in a kohler manual. I did change my oil at 25hrs, but with conventional 10w30 and a kohler filter.
    The rings need that run time with conventional oil to seat themselves properly. New rings/cylinders won’t seat properly with synthetic oil that’s why break in time is always done with conventional oil, then you switch to synthetic if you want to after break in is done.


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