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Go Back   Only Cub Cadets > Cub Cadets > Cub Cadet Engines > Kohler Engines
Reload this Page What exactly is the "Kohler rattle"?
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  #11  
Old 06-02-2025, 04:10 PM
EternalArianne EternalArianne is offline
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Originally Posted by dale c. View Post
set the timing with a timing light . s mark on flywheel mark it with paint or something visible adjust point gap to correct timing . clean or replace points first
I have seen that online where people say adjusting the timing to 18 instead of 20 fixes it the rattle. I'll look into it
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  #12  
Old 06-03-2025, 12:17 AM
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Billy-O Billy-O is offline
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Check for loose grass screen on the flywheel....
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  #13  
Old 06-03-2025, 08:09 AM
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I have seen that online where people say adjusting the timing to 18 instead of 20 fixes it the rattle. I'll look into it
Snake oil I say!
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  #14  
Old 06-03-2025, 07:27 PM
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ironman ironman is offline
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My 149 makes so many friggin' noises that I gave up worryn' about them.
But that was 15 years ago. Still starts & runs fine, and does the job.
Sometimes searchin' for the devil brings more agony than bliss.
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  #15  
Old 06-22-2025, 04:56 PM
EternalArianne EternalArianne is offline
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I checked the point gap and it was correct at .020 but the contacts were severely worn and concave. I replaced the points and condenser since the seller provided a new set. Engine still sounds the same. It's somewhere between a knock and a rattle, almost like something inside is loose/wobbling. She definitely needs a rebuild as I suspect this is all original from 1966.

Side note, now the carb is leaking. I replaced the bowl gasket and it was fine for a while, now it's leaking out the throat which means the float is stuck. Gimme a break...
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  #16  
Old 06-22-2025, 09:42 PM
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Originally Posted by EternalArianne View Post
I checked the point gap and it was correct at .020 but the contacts were severely worn and concave. I replaced the points and condenser since the seller provided a new set. Engine still sounds the same. It's somewhere between a knock and a rattle, almost like something inside is loose/wobbling. She definitely needs a rebuild as I suspect this is all original from 1966.

Side note, now the carb is leaking. I replaced the bowl gasket and it was fine for a while, now it's leaking out the throat which means the float is stuck. Gimme a break...
So clean the crud from under the needle seat and it will stop leaking.
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Old 06-22-2025, 10:14 PM
finsruskw finsruskw is offline
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Improper cam shims, to loose.
Spec is .005"-.010" for 240,301, 321 & 341
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  #18  
Old 06-25-2025, 01:58 PM
Grandpa53 Grandpa53 is offline
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If you've ever been around an old Harley you would've heard the same noise. Solid valve lifters are a major contributor to the "KOHLER RATTLE". More noticable at idle/low rpm.
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  #19  
Old 06-26-2025, 11:25 PM
EternalArianne EternalArianne is offline
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It does seem to smooth out at higher RPM
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