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  #1  
Old 07-09-2008, 02:17 PM
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JPL JPL is offline
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Kohler command pro.

I have a 2006 15 hp Kohler command pro.
Does anybody know what the warranty is on this engine?
I was told that it is only 2 years.
My engine is burning oil about a quart every 3-4 days (I top it off every day).
The shop I use told me that the engine is not worth fixing and that I would be better off to convert my mower to a Kawasaki engine. The Kohler engine would cost too much to rebuild.
Has anybody had an oil burning problem with a Kohler engine?

I am open for suggestions on what to do.

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  #2  
Old 07-09-2008, 02:49 PM
mike r mike r is offline
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JPL: how much oil would you say your using? single cylinder i assume?

i had the command pro 18 hp engine,single cylinder, super fine engine in my honest opinion, couple of questions though,
1) what oil weight and type are you using? very well BE kohler's own sae 30!, NOT synthetic!
2) in what type of enviroment are you using it? IE... hot and humid?
3) how LONG everyday are you using it? 1 hour, 2-8 hours?
4) oil MUST be checked BEFORE,DURING,AFTER YOU mow, rule of thumb,BUT not written in stone, check every 4 FOUR hours of operation.
well the answer in #2, these command pro's WILL use oil like this, ALL engines will.
5) are you mowing at part throttle or full throttle? hopfully FULL.
6) is the engine blue smoking? if it is it's your rings.
also clean that air prefilter and the primary air filter also, and keep it CLEAN.
this is a start, but as far as this issue your having, if your using synthetic, change to kohler's sae 30.
i am glad i did, because i was using mobil 1 synthetic, and was using even more than the normal amount over the kohler sae 30! well good luck.

mike.
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Old 07-09-2008, 10:26 PM
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ed2hess ed2hess is offline
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Warranty is two years but in second year they don't cover fully. I had rings put in at around the 2 year point and had valves ground and it cost about $90 for my part. Some of that was oil and filter and spark plug. The other problem i have is the darn carb don't last two years and they don't have but 90 days on warranty.
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Old 07-09-2008, 10:50 PM
AmsoilPower AmsoilPower is offline
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Quote:
Originally Posted by mike r View Post
JPL:

1) what oil weight and type are you using? very well BE kohler's own sae 30!, NOT synthetic!
.
Please explain this statement as I am why someone would not want to use synthetic.

Engines "using" oil at 1 oz/hr is considered the norm and tolerable by most engine manufacturers with conventional oil.
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Old 07-09-2008, 11:25 PM
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LawnTamer LawnTamer is online now
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I have run 4 Kohler command pro engines. 1 is still in use. The other 3 have all started knocking or burning oil at high rates, till they finally throw a rod, or have some other huge mechanical failure. The last one I lost, I replaced with a Kawi. I have been fairly happy with the Kohlers, but I am way more impressed with the Kawi. The Kawi is so easy to start. It doesn't vapor lock, or flood like the Kohlers do, and somehow it is way easier to pull. It is like starting a 5hp mower. The twin cylinders are quiet and smooth. The only complaint I could have is that it uses a bit more fuel.
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Old 07-13-2008, 10:59 AM
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sawman65 sawman65 is offline
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Quote:
Originally Posted by AmsoilPower View Post
Please explain this statement as I am why someone would not want to use synthetic.

Engines "using" oil at 1 oz/hr is considered the norm and tolerable by most engine manufacturers with conventional oil.

kohler warns useing synthetic oil during the break in period. i tell all my customers this and have seen the bad results- an engine that burns oil well before its time for that to happen.then the crying begins.
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Old 07-14-2008, 10:38 PM
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Ridin' Around Ridin' Around is offline
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Quote:
Originally Posted by sawman65 View Post
kohler warns useing synthetic oil during the break in period. i tell all my customers this and have seen the bad results- an engine that burns oil well before its time for that to happen.then the crying begins.
Not to pick a fight here, but I am a kohler certified tech and have never heard any mention of not using synthetic oil in them. I understand what you are saying about break-in time, However Lots of new cars are coming to the showroom florr with Synthetics in them. Vettes, lots of BMW, MB etc. Synthetic oils have evolved lots in the last few years. You have to really follow the industry to keep up as these oils evolve. If you are running a shop I would suggest checking into a publication called lubes-n-greases. It is a free subscription and I have found it very useful lately in keeping up with what is going on.
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  #8  
Old 07-15-2008, 07:40 AM
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sawman65 sawman65 is offline
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Quote:
Originally Posted by Ridin' Around View Post
Not to pick a fight here, but I am a kohler certified tech and have never heard any mention of not using synthetic oil in them. I understand what you are saying about break-in time, However Lots of new cars are coming to the showroom florr with Synthetics in them. Vettes, lots of BMW, MB etc. Synthetic oils have evolved lots in the last few years. You have to really follow the industry to keep up as these oils evolve. If you are running a shop I would suggest checking into a publication called lubes-n-greases. It is a free subscription and I have found it very useful lately in keeping up with what is going on.
page 5 of ANY comand twin OWNERS MANUAL tells you not to use it for the first 50 hr's.
when it comes to oil i use the engine makers specs. they made it did the testing so they are who i listen to. not some one trying to sell me oil.
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  #9  
Old 07-10-2008, 04:24 AM
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JPL JPL is offline
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Mike r,
Thanks for getting back to me, let me follow up on your questions.

I am using Penns oil 10w-30w with a Wixs oil filter.
The enviroment can be anything from cool to hot and humid as I am located in the north east.
The engine is mounted on a 36" Scag mower and it see's action about 8-10 hrs a day 5 days a week.
The oil is checked every day and the air filters are cleaned.
On my other mowers with a Kawi engine I add a bit of oil once in a while and they run just as long each day.
Yes I always run at full throttle unless I am empting the box.
The smoke appeares to be black and the catcher box is covered with black soot.
The engine carb. also floods when it sit over night as mention from Lawn Tamer.

So that's where I stand. What next?? Do I just keep it running until it fails or do I take the time and try to rebuild it??

Thanks for you imput.
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  #10  
Old 07-10-2008, 05:31 AM
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Phil G Phil G is offline
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Quote:
Originally Posted by JPL View Post
Mike r,

The smoke appeares to be black and the catcher box is covered with black soot.
The engine carb. also floods when it sit over night as mention from Lawn Tamer.

So that's where I stand. What next?? Do I just keep it running until it fails or do I take the time and try to rebuild it??

Thanks for you imput.

Sounds to me like the float level is not set right in the carb'
Try dropping to bowl and see if it's sitting level when the neddle valve is shut.
I think you will find it's not shutting off at the right moment, or has dirt trapped under
the neddle seating.
Most floats can be adjusted by gently bending the tab.
Too much unburnt fuel can wash the oil off the cylinder walls and cause premature wear.
OR the choke is not fully disengaging.
This may not slove all the issues, but needs to be right.
Good luck Phil




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