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Garden Tractors Discussion Forum

KOHLER 18 HP MAGNUM TWIN

Author 
JEFF WALTERS

02-17-2005 17:45:40
206.146.84.54



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ARE THESE A GOOD MOTOR?? MINE ONLY HAS 400 HRS ON IT!! SOME ONE TOLD ME THAT THE CRANKS WERE JUNK AND THAT THESE MOTORS ARE JUNK???? MINE HAS AN OIL FILTER!!!!!!!!!!!!!




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Kent of SW MO

02-18-2005 06:33:10
12.178.152.114



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 Re: KOHLER 18 HP MAGNUM TWIN in reply to JEFF WALTERS, 02-17-2005 17:45:40  
The first KT-17 did not have a fully pressurized oil system. They are the "bad ones". The KT-17 series II has a fully pressurized oil system and are ok. Not all series II engines had an oil filter.

Kent



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JEFF WALTERS

02-18-2005 07:04:17
206.146.84.34



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 Re: KOHLER 18 HP MAGNUM TWIN in reply to Kent of SW MO, 02-18-2005 06:33:10  
THIS IS NOT A KT 17!!!!!!!!!! THIS IS AN 18 HP MAGNUM!!!!!!!!



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Kent of SW MO

02-19-2005 10:07:16
12.178.152.206



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 Re: KOHLER 18 HP MAGNUM TWIN in reply to JEFF WALTERS, 02-18-2005 07:04:17  
Yes, I know you were asking about A Kohler M18( 18HP Magnum). The Kohler M18 is the follow on engine of the Kohler KT-17 series II. They are basicly the same engine. I have rebuilt three kt-17"s. Two were series II engines. One was set-up for an oil filter and one was not. Both were fully pressurised oil systems. I will have to check the service manuels, but I think the main differance between the KT-17 seriesII and the M18 is the M-series uses a electronic triggered ignition and the KT-series II is points. The M18 may use a bigger carb to make it 18HP. As to oil I use 30w year round though I do not use my KT-17 much in the winter. My engine is on a Gravely 812 which I repowered with the KT-17. I have put a snow blower on it and I may start using a 10w-30 in the winter time.

Kent

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JEFF WALTERS

02-19-2005 11:43:43
206.146.84.79



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 Re: KOHLER 18 HP MAGNUM TWIN in reply to Kent of SW MO, 02-19-2005 10:07:16  
WHAT IMPROVEMENTS DID THEY DO TO THE MAGNUM THATS SUPPOSED TO MAKE THEM SO MUCH BETTER??? ARE THEY A GOOD MOTOR OR NOT??



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JT

02-19-2005 12:02:03
69.220.199.9



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 Re: KOHLER 18 HP MAGNUM TWIN in reply to JEFF WALTERS, 02-19-2005 11:43:43  
They biggest thing they did was to put an oil pump in them and went to electronic ignition system. In later years they started using Mahle pistons in them, a lot better piston that the old Kohler pistons. They are an excellant engine, do not be afraid to buy or use anything with one in it.



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Kent of SW MO

02-21-2005 06:48:22
12.178.152.117



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 Re: KOHLER 18 HP MAGNUM TWIN in reply to JT, 02-19-2005 12:02:03  
The Kohler KT-17, KT-17 series II and the M18 all have oil pumps. The KT-17 plain DOES NOT have pressurized oil to the rod journals.

Kent



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JEFF WALTERS

02-18-2005 07:28:13
206.146.84.34



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 Re: KOHLER 18 HP MAGNUM TWIN in reply to JEFF WALTERS, 02-18-2005 07:04:17  
WHAT OIL SHOULD I RUN IN THIS CRITTER??? SAE 30 IN THE SUMMER??? AND 5 30 IN THE WINTER????????



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shannon from ohio

02-17-2005 19:50:18
69.170.170.112



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 Re: KOHLER 18 HP MAGNUM TWIN in reply to JEFF WALTERS, 02-17-2005 17:45:40  
Gene is right,THE 18 HP MAGNUM IS A GREAT ENGINE THE ""JUNK"" ONES ARE THE ""KT17QS"" ENGINES (RODTHROWERS)



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Gene Davis (GA)

02-17-2005 19:01:56
66.82.9.28



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 Re: KOHLER 18 HP MAGNUM TWIN in reply to JEFF WALTERS, 02-17-2005 17:45:40  
I have one in a Dig-It brand backhoe/loader and it has almost 1200 hrs on it. no service or repair work except to change oil,filter, air cleaner and keep the cooling fins clean. Spark plugs changed at 1000 hrs. Has been a good engine. Gene Davis



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