Massey Ferguson 165 Hard Start - Adjusting the Valves and Replacing the Head Gasket

This is a detailed hands-on repair diary, not a walkaround: Waldo diagnoses a hard-starting Perkins-powered MF 165 by checking for blow-by, measuring valve lash with feeler gauges to exact thousandths, adjusting valves, then finding and replacing a blown head gasket, including stud thread cleanup and the full three-stage torque sequence (20/40/58 ft-lbs) with bleeding the fuel system afterward. Best for owners troubleshooting similar hard-start or head gasket issues themselves.

An owner-operator documenting his own hands-on repair work on his tractor, not a dealer or sponsored channel.