I AM WITH hOBBSY on this my TT61 from davis never saw glow head One a new engine may be I ran 1 or 2 tanks on glow to get a
"feel" than on with the diesel head worst case senario it takes longer and they just get stronger and thats a good thing and a cmplete
waste of time with a ringed engine and as he said the irvine Q40 is the same as the irvine 40 diesel except for the head and run as
diesels from minute one martin ( if super tight pinch I can see it)