QuestionQUESTION: I have a Kohler CH12.5s, spec# 1910, S/n# 2507405064 that is leaking oil from the gov-shaft. After about 3mins of operation, there is a puddle of oil about the diameter of 4" on the floor. This is on a Miller BlueStar 180k welder. the engine has been removed & the back end torn down. Shaft has some minor wear, but nothing too bad. Only found 2-washers on the outside of the shaft, but no seals. I looked this engine up & IPL does not show a seal either. I went to a local dealer & they were not sure if it has a seal or not. I ordered both innner & outer needle bearings & a Gov cross shaft already. My question is, how do you remove those 2-bearings on the cross shaft from the engine casing & 2nd question, how does this seal the oil from leaking out of the cross shaft (orignal prob was throttle was sticking open, even when not using welder & found a bent linkage from carb to gov & that is fixed now, but that's how I found the oil leak).
ANSWER: Hello John:
>>According to My Shop Manual, there is a Cross Shaft Oil Seal Used on this Engine, but as you Noted it is Not Shown in the IPL/Breakdown and I have been Unable to Locate in my Parts List.
>>I will Contact Our Kohler Service Rep on Monday and Confirm the Cross Shaft Oil Seal for you and Provide you with the Seal Part Number if Applicable.
>>I have Replaced Many of these Oil Seals, but the Last One was 2 or 3 Years ago, so I Do Not Recall the Part Number.
>>If I have Not Contacted you with a Follow Up Answer by 6PM Monday, then Please Send me a Follow Up Reminder.
>>I have a Seal/Bearing Puller used for Removing these Seal and Bearings, However, you can Use a Screw driver to Remove them from the Engine Block.
>>Thanks.
>>If you Hit a Snag or this Does Not Correct the Problem, I am Here if You Require More Assistance. Hope this Helps. Let me Know What Happens, Please. Have a Happy Holiday Season and May the All Mighty Bless You and Yours. Be Safe and Happy. Thanks.
Good Luck
Respectfully
John
PS: I am Allowed to Answer 3 Questions a Day. If you See I am Maxxed Out, then Try Submitting your Question at or Just After 8pm EST (US). My New Day Starts then. Follow Up Questions are Received Anytime. Comments and Ratings are Greatly Appreciated. Thanks.
Respectfully
John
---------- FOLLOW-UP ----------
QUESTION: Just checking to see if you found out anymore information on this Kohler engine.
AnswerHi John:
>>They were Extra Busy Yesterday and the Service Rep said he thought there was a an Oil Seal ALso, but he wanted to Check and make Sure.
>>He is Supposed to let me know Today what he Discovered about the Seal and a Seal Part Number if Appliable.
>>Thanks for the Reminder.
Respectfully
John
Hi John:
>>OK, Here's the Scoop.
>>Due to Some of the Engines having an Actual Oil Seal and Others Using a Special Designed Cross Shaft, the Seal and Part Number are Not Shown on the IPL's or Breakdowns.
>>If the Cross Shaft is a 6MM Diameter Shaft, then the Seal Part Number is 1203201-S and if the Cross Shaft is 8MM, the Seal Part Number is 2803209-S .
>>As Always, If you Hit a Snag or this Does Not Correct the Problem, I am Here if You Require More Assistance. Hope this Helps. Let me Know What Happens, Please. I Hope you Had a Happy Holiday and May the All Mighty Bless You and Yours. Be Safe and Happy. Thanks.
Good Luck
Respectfully
John
PS: I am Allowed to Answer 3 Questions a Day. If you See I am Maxxed Out, then Try Submitting your Question at or Just After 8pm EST (US). My New Day Starts then. Comments and Ratings are Greatly Appreciated. Thanks.
Respectfully
John
