Leathermang: A couple months ago I posted a request for info on a 22mmx1mm bolt. I had tried every industrial bolt supply in Houston up to that point. I thought with all the refineries and industrial complexes around Houston they would come up with one but, I struck out. This site didn't help me back then so I went to a NAPA parts house that has real counter help and asked if they knew where I could find this bolt pattern. A savy guy looked under CV joint castle nuts and came up with 22mmx1mm fitting Nissan cars. I called a couple junk yards but could not find a wrecked car.
One reader a couple weeks ago replied to a post about a cracked pre-chamber and mentioned a bicycle part could be used. I searched the web for 22mmx1mm and found references to shimano dura-ace cranks. The next day I bought a crank puller at a bike shop and welded it up Saturday morning. It works great. The pre-chambers were out and the head is getting reworked.
This all started because a machine shop would not surface the head unless I had the chambers removed. I'm rebuilding the engine and restoring the interior of a wagon so rather than spend a couple hundred bucks on the tools I used the expertise of this site to solve my problem. Thanks to all.

By the way, I used my deep cut Milwaukee porta-band saw to cut the ears on the 1/2" drive socket that's why it only took a couple minutes. Could have done it with a hack saw but I find every excuse I can to use power tools. I'll post pictures next week.