B31 iol leak

[griffo]

  Yes i know they all drip a bit of oil, but mine has oil coming out of the top of the push rod tube. Any easy fix before I remove the head etc.?   Griff

[JulianS]

Check the castellated gland nut at top of pushrod tower is done up. If it is you probably need to replace the gland seal which sits above the nut next to the head. That means head off.