Small Engine Repair: Adjusting Valves or Valve Lash on a Tecumseh Lawn Mower

**Always follow the instructions in your repair manual when doing repair or maintenance work on Outdoor Power Equipment. Manuals can be found at the manufacturers website.** This video shows how to adjust the valve lash on a Tecumseh engine. Manuals for all Tecumseh engines can be found online and for free. The method used to adjust the valves in this video is similar to the method used on other industrial engines that require valve adjustment and have rocker arms. Tools Used: – Feeler Gauge – T20, T30 Torx Wrench – 7/16″ Crowfoot Wrench – 3/16″ Allen Wrench – Torque Wrench Specification: – Tecumseh Engine Model OVMR120 – Valve Lash for both Intake and Exhaust Valve is .004″ – Torque Spec for Lock Nut on the Valve Lash Adjustment Bolt is 120 in. lbs – Torque Spec for Rocker Cover Bolts is 40 in. lbs
Video Rating: 4 / 5

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