Biotour thanks for posting the oil cap thread did you ever come to a conclusion on what was causing the problem?

I went out again this morning took the cap off had it started within 5 min.

I had the same problem with the glow plugs slow ones were tossed . Mine wouldnt even start in warm weather back then. There is a thread on making a reamer from a drill bit using the old glow plug body, drilling it out for the bit and welding on a nut . search glow plug reamer I made one last spring. I kept the length as long as the glowplug to prevent damaging the prechamber.