Help What year and what exactly are these tune up tools?? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**Steeveedee** · 10-01-2022, 05:48 PM

I have some WAGs.

Is the "dial a gap" flat like a screwdriver? If so, maybe it's for setting point gap from closed to the proper setting, and the marks on the "drum" would be thousandths of an inch. I'd venture to guess that this tool was used for '55 and '56 distributor point setting, to help avoid repeated removal and replacement of the cap, because V-8 GM engines didn't get the cap with the "window" until '57.

As for the "wrench", if the blade labeled "spark plug" is .035" thick, it's a plug gap gage. If the blade labeled "distributor" is .017" thick, it's for gapping the points. No idea what the open-end wrench part is for.

Do I get a prize?

10-01-2022, 05:48 PM	#2
Steeveedee Who Changed This? Join Date: Jan 2013 Location: Simi Valley, CA Posts: 10,155	Re: Help What year and what exactly are these tune up tools?? I have some WAGs. Is the "dial a gap" flat like a screwdriver? If so, maybe it's for setting point gap from closed to the proper setting, and the marks on the "drum" would be thousandths of an inch. I'd venture to guess that this tool was used for '55 and '56 distributor point setting, to help avoid repeated removal and replacement of the cap, because V-8 GM engines didn't get the cap with the "window" until '57. As for the "wrench", if the blade labeled "spark plug" is .035" thick, it's a plug gap gage. If the blade labeled "distributor" is .017" thick, it's for gapping the points. No idea what the open-end wrench part is for. Do I get a prize? __________________ ~Steven '70 Chevy 3/4T Longhorn CST 402/400/3.56 Custom Camper Simi Valley, CA



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