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I’m assembling a few 63 and 64 distributors and finding some peculiarities.
First, the breaker plates: some have an extra bit of metal and tapped hole (see pic.) vs the installed plate. Same pat. #.
The extra could come from a later model distributor as a couple have the crossshaft hole in the housing.
Thoughts?
Second issue is the breaker plate seems to hit the vacuum advance screw. Is this normal? It seems the plate just touches as the vacuum advance reaches it’s limit.
In the first picture, that extra hole is some distributors and not others.
In the second pic I believe you have the screws reversed.
This is from a 64.
I agree that screw head is too thick. Use a screw with thinner pan head, or file down the screw head that you have.
Larry
Those are called Fillister Head screws and don't belong there.
They are used for the points.
From your initial photo it's pretty obvious you have the screw locations reversed / switched
As previous poster said and I also believe - pan head screws are usually used for the vacuum can.
I use button head screws for the vacuum advance when I can't find pan heads.
I have a bag of short hex socket (allen head) screws specifically for advance cans giving me the most clearance on custom builds
I believe the extra screw holes you found are for the shielding GM installed over the points for a while
I can't believe the NCRS geniuses actually look to see IF YOU HAVE THEM ??
As Larry said I believe GM in their wisdom installed these for radio noise - after how many years of radio advancement , carbon wires , resistor plugs they decided that shielding was needed.
They would actually act to heat up / cook points and condesers
I can't believe the NCRS geniuses actually look to see IF YOU HAVE THEM ??
As Larry said I believe GM in their wisdom installed these for radio noise - after how many years of radio advancement , carbon wires , resistor plugs they decided that shielding was needed.
They would actually act to heat up / cook points and condesers
NCRS judges are NOT supposed to touch the judged car in that fashion. Just like they're not supposed to apply a magnet to see if a certain part is of a certain magnetized metal. If something is not readily visible, judges are not supposed to pry around to satisfy their curiosity.
Never heard the term cheese head screw. Looked in Machinery’s Handbook 21st edition. The screws depicted in OP’s photos are filister head holding vac can and round head machine screws holding points. Cheeshead although similar to a fillister has a flat top (no crown) . Thank you Q, for posting “cheesehead” made me curious enough to look and learn something new today.
Never heard the term cheese head screw. Looked in Machinery’s Handbook 21st edition. The screws depicted in OP’s photos are filister head holding vac can and round head machine screws holding points. Cheeshead although similar to a fillister has a flat top (no crown) . Thank you Q, for posting “cheesehead” made me curious enough to look and learn something new today.
Drive em safe
Leo
Thank for re-educating me
It has been so long since I had to call them by name I had forgotten Fillister Head - thought something wasn't quite right calling them Cheese Head - been a long time LOL
Fillister heads are a nicer screw - rounded edges not like cheese heads
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Distributor Internal Expert Needed
