AboutJohn C. Bridgers Sr. Expertise Small Engine Service Center Co-Owner - ATVs, Mowers, Trimmers, Snow throwers, and Many Other Small Engine Operated Equipment. I can answer questions pertaining to Most Lawn and Garden Equipment, e.g. riders, tillers, trimmers, cement mixers, chainsaws, etc. I have been repairing small engines for 34 years. Briggs & Stratton, Tecumseh, Kohler, Lawn Boy, Stihl, Poulan, Mac, and Honda; to name a few.
Experience
Past/Present clients I have worked on small air/water cooled engines for 34 Years. I performed warranty work for Lowes of Wilson and other retailers in the area. I Own a Yard Maintenance and Certified Small Engine Repair Service Center.
Question I have a kohler command 25hp motor with an external oil cooler. One of the hoses broke today and the oil leaked out of the engine and the driver didn't notice until the engine died from no power. After letting it cool for about an hour I replaced the hose, put fresh oil in it and started it up. It runs but was lacking power. I pulled off the left spark plug wire while it was running and the engince died. I put it back, started it up and removed the right spark plug wire and their was no change in the engine. I pulled the spark plug on that side to check for spark and there is spark. I checked the lifters on both sides and appear to operate normal. Any ideas????
Answer Hello Tom:
Send me the Model Numbers Off the Engine, Please. With these I can Locate the Proper Manual and Better Assist you. However, Check the Cylinder Compression. If the Compression is Below 75PSI then, Remove the Cylinder Head and Check the Cylinder for a Gouge or Scarring in the Cylinder. Check for a Blown Head Gasket. If the Compression is Good, then Check the Valve Clearance. .003in - .005in Intake and .080in - .010in Exhaust. The OEM Suggest .004in on Both the Intake and Exhaust. I Do Not Use those Becaus of Burning the Exhaust Valve and I have Less Starting Problems. 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 you Question at or Just After 9pm EST (US). My New Day Starts then. Thanks.