Hi aeronaut-9,
On the glo plug adapter question that you made I forgot to say that the 3/8 inch hole that is left once you brake the ceramic part was pluged with a 3/8 inch aluminum solid rod using a bench press or vice, then he proceeded to drill and tap for 1/4 32 for the glow plug, sorry for the omision on my part.
Have you tried to run on glow plug and gasoline yet?