Oil Does Not Return to Oil Tank
  1. Oil tank empty.
  2. Restricted oil lines or fittings. See dealer.
  3. Restricted oil filter. See dealer.
  4. O-ring at oil pump return missing or cut.
Engine Leaks Oil From Cases, Push Rods, Hoses
  1. Loose parts. See dealer.
  2. Imperfect seal at gaskets, push rod cover, washers, etc. See dealer.
  3. Restricted oil return line to tank. See dealer.