Small Engines (Lawn Mowers, etc.)/case 448 stalling

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Expert: John C. Bridgers Sr. - 6/5/2006


Question
I have an old 448 Case, Onan engine.  It has started to stall after running about 20 min.  I can get it restarted, although hard.  Then it will move about 3 to 4 feet and stall again.  The gas line has been replaced, gas tank cleaned and emptied.  Carb cleaned, the shop that did the carb cleaning said they ran it for an hour and it didn't quit.  However, when I got it back it ran for about 20 min, was going up a hill and it stalled.  Have not been able to mow with it since.  The shop that did the work said they didn't know what was wrong.  Any suggestions?

Answer
 Hello Phyllis:

 Has anyone Checked the Ignition Module or Point Set. When the Ignition Module or Condensor (if Point Set) get Hot they will Ground Out. If the Shop didnt put the Mower Under a Load; ie Cutting Grass; they will not get the Components Hot enough to Ground out. Use the Mower and Check the Fire to the Plug when it Stalls the Next time. If no fire then Replace the Ignition Module/Point Set. Also the Valves will cause this type of problem when They need to be ReGround and Lash Reset. Hope this Helps.

 Good Luck

 Respectfully

 John

Small Engines (Lawn Mowers, etc.)

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John 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 Small Engines (Air and Water Cooled) and their Associated Equipment as well as 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

I have been repairing small engines for 34 years. Briggs & Stratton, Tecumseh, Kohler, Lawn Boy, Stihl, Poulan, Mac, and Honda; to name a few.

Education/Credentials
Technical College for Gasoline and Diesel Engines. This was a Full Course on Complete Dis-assembly and Repair of ALL Components pertaining to Engines, Transmissions, Rear Ends, Electrical. I Found the Small Engines to be Interesting because they are Small and Simple.

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.

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