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Odd distributor modification

Old Apr 12, 2025 | 02:27 PM
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Default Odd distributor modification

Occasionally I will look for points type distributors on eBay and snag one if it's a number I want and price is a good deal. First thing I test is if the vacuum advance works and holds vacuum. Got one that does indeed hold vacuum but points plate wasn't moving. Found this mod someone made. WTH? Why not just plug the vacuum hose? Any thoughts on what the person was trying to gain by brazing the rod? I cut it loose with my Dremel tool and now have a functioning vac advance. Isn't a Corvette distributor but is from C3 era.

I am mystified why someone would go to the trouble of doing this. Your thoughts?
I am mystified why someone would go to the trouble of doing this. Your thoughts?
Cut it loose and now works.
Cut it loose and now works.
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Old Apr 12, 2025 | 08:30 PM
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Another forum success story or mystery ? LOL
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Old Apr 12, 2025 | 11:05 PM
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Looks like the locked out the timing and did that to stabilize the point plate. No advance...just set at total advance.


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Old Apr 13, 2025 | 12:18 AM
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Common "hot rod" mod to lock out the vacuum advance and stabilize the points plate to assure stable, locked timing in drag race setup. Not unusual at all. Lot of people did it in the 1970's.

Lars
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