Originally Posted by Greg_H
Yes on the tubing connection on vac guage. The Snap-On pistol looking thing appears to be maybe a solenoid tester? It has connections for Battery, Distributor, Ground, and Solenoid. Also has an indicator light on top of it. I found this thing too. It will take a little stuying to figure it out.

That's an "electric pencil"- - - -used for marking tools. Attach the wire to a 12V battery and hold the tool onto the other post, or use a jumper lead as a ground. When you touch the probe to the tool (gently) the tip vibrates up and down and leaves a permanent etch mark on the item. It takes some practice to get it right, so use piece of scrap metal to develop your technique! I used Dad's electric pencil to put my initials on my first set of sockets- - -his Christmas gift to me at age 12.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
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