Small Engines (Lawn Mowers, etc.): Toro Lawn Tractor (Kohler 14hp), dowel pins, crankshaft seal

Question
Recently bought used Toro 14HP lawn tractor (1995). Last night it suddenly started to run at full RPM. Turned off immediatly. re-started with Throttle as low as it will go, still engine racing at full rpm was able to slow down engine using choke. The linkage seems to be working all right. Where would I look?

Answer
Hello Jim:

Sorry for the Delay. This Question was Located in the Question Pool. You can View a Breakdown/IPL of this Engine at this Site Addy, http://www.smallenginepartswarehouse.com/parts.asp and Select the Shop Online Parts Look Up. Then Select the Model Tab. Then Select the OEM and Enter the Model Numbers. Then Double Click on the Model in the Results Area. Now you can Select the Section of the Engine you Wish to View. If the Governor Arm has Not Loosened from the Governor Shaft, then Check the Linkage from the Governor Arm to the Carburetor. If this is Connected, then Remove the Carburetor and Check the Throttle Valve Plate and Ensure it is Still Bolted to the Throttle Shaft. If this is Good, then the Internal Governor has Broken. This is a Simple Process. Drain the Oil and Remove the Engine from the Frame to the Work Bench with the Oil Pan Facing Up. I have a Wooden Rest that was Especially Made to Hold the Engine when in this Position. Remove the Oil Pan. After All the Oil Pan Bolts are Removed; Tap Lightly on the Sides of the Oil Pan to Loosen it from the Dowel Pins. When the Oil Pan is Removed, you can See the Governor Resting on Top of the Cam Gear. Lift Off and Replace with a New Governor. Check the Engine Block for Debris from the Old Governor and Wipe the Inside of the Block With a Rag, Until Clean. Set the Governor So it is Resting on the Governor Shaft and Carefully Replace the Oil Pan. Remember to Replace the Oil Pan Gasket. If the Crankshaft Seal Was Not Leaking, then Leave it Alone. It Should be OK. You can Easily Replace it While Mounted on the Machine if Required Later. Make Sure the Governor Stays in Contact with the Governor Shaft while Replacing the Oil Pan. Re - Mount the Engine to the Machine. Refill With Oil. These Instructions are Basic. Your Internal Governor May Differ. Hope this Helps. I am Here if You Require More Assistance. Let me Know What Happens, Please. Thanks.

Good Luck

Respectfully

John

PS: I am Allowed to Answer 10 Questions a Day. If you See I am Maxxed Out, then Try Submitting your Question at or Just After 9pm EST (US). My New Day Starts then. Thanks.

Respectfully

John