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Old 02-22-2004, 07:55 PM
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rvsuper rvsuper is offline
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Join Date: May 2002
Location: Rock Valley, IA
Posts: 930
Help! Kohler is way too loud!

I've got a 12.5 Kohler on my Exmark Metro. I just changed the oil to the Kohler Command oil yesterday and ran it, after searching on here, but there was no difference in the loud ticking. Is there anything else that can be done besides taking the head off and replacing the lifters?
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Old 02-23-2004, 12:27 AM
LawnSite Bronze Member
Join Date: Dec 2002
Location: Encinitas, Ca. 92024
Posts: 1,426
Try adding 4 oz of Energy Release to the mix. It is a metal conditioner we run in the race cars that fills the microscopic holes in the metal. Over 6500 RPM it gives us 10 more horsepower. It has been used to quiet air compressors, and tons of other stuff.
Bill Schwab
Naturescape Landscape Co.
Encinitas, Ca. 92024
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Old 02-24-2004, 12:13 AM
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rvsuper rvsuper is offline
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Join Date: May 2002
Location: Rock Valley, IA
Posts: 930
I searched the forums and I found that either Sea Foam or Marvel Mystery Oil works. How much Mystery oil should I add to the crankcase and how long should I run it to get it circulated?

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Old 03-02-2004, 05:30 PM
taylob taylob is offline
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Join Date: Feb 2003
Location: Texas
Posts: 14
I read in Kohlers update book that they have a new push rods they helps eliminate clattering on some engines. They are solid now so the oil pummped through them doesn't move to fast for the lifters to pump up. The part number for the pushrods are 12-411-04-s and can be purchased through your local Kohler dealer. Also, be sure to roll engine so that each valve is open for a few minutes to bleed air out of lifter before starting. You could bend a pushrod if you don't. When you loosen up the rocker-arms to install the pushrods, it allows the lifters to expand and draw in air. Since engine is not running and keeping the lifters pumped up you need to do this before starting. And finally please use a 10W-30 motor oil kohler specifies this.
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