RE: Should I just convert to methanol??
Gentlemen,
Here is a glow plug adapter with a standard idle bar Fox glow plug installed. I made it out of an old spark plug and a fine thread 3/8 bolt. In this case you can remove and install a replacement glow plug. Also note the little glow plug that I turned on the lathe. This is here to give scale to both parts.
Please don't confuse this adapter for the discription in my pervious post. I just wanted to show the basic idea and I though these shots maybe of some help to others.
With respect to the adjustable glow plug holder / contra-piston device; if a glow plug is installed with LockTite as I mention in the pervious post it will be most difficult to remove, but it is easy to just machine a new bolt/holder.
I hope these photos are helpful.
Poppy