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Joined: Jan 2003
Posts: 33
D
Wrench Fetcher
Wrench Fetcher
D Offline
Joined: Jan 2003
Posts: 33
Hi, I was timing my '54 3800 and saw sparks flying on the vacuum advance bracket :confused:
What would be the reason that this happens?
Thanks Dutch

Joined: May 2001
Posts: 1,907
W
'Bolter
'Bolter
W Offline
Joined: May 2001
Posts: 1,907
St. Elmo's Fire on an Advance Design? I would look at the plastic insulator that goes through the body of the distributor with the conducting bolt inside it. I don't know if you can buy that insulator alone. There are more knowledgable folks than me, especially Randy (fifthave) one notch down in the Electrical Bay.


1948 3/4-Ton 5-Window Flatbed Chevrolet

34 Years. Now with a '61 261, 848 head, Rochester Monojet carb, SM420 4-speed, 4.10 rear, dual reservoir MC, Bendix up front, 235/85R16 tires, 12-volt w/alternator, electric wipers and a modern radio in the glove box.
Joined: Feb 2001
Posts: 1,897
M
Member
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M Offline
Joined: Feb 2001
Posts: 1,897
Wally may be right on this one. Look at the insulator lug which goes through the side of the distributor housing
Make sure the connector ends for the points and the condenser are not bent over and close to touching the distributor housing. They may be pushed on when the cap is put on. they can look ok(the connections) but make contact or almost when the cap is on with the edge of the cap pushing them down.


There is enough good in the worst of us and enough bad in the best of us that it does not behoove any of us to criticize the rest of us.
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Be yourself. If you are ever lost, It will be much easier to find yourself if you know who you are!
Joined: Jan 2000
Posts: 1,586
T
Extreme Gabster
Extreme Gabster
T Offline
Joined: Jan 2000
Posts: 1,586
The distributer is supposed to have a ground wire between the block and one of the screws on the distributer body.Without the wire, the path to ground is through the sloppy vacuum advance linkage and or the oily distributer shaft,later advances have a brass tab supposedly to help ground it without a additional wire.

Joined: Jan 2003
Posts: 33
D
Wrench Fetcher
Wrench Fetcher
D Offline
Joined: Jan 2003
Posts: 33
Thanks for the advice, Wally, Mechainiac and Tony ( wink I heard you had a good time in Rochester) and will check it out this afternoon. Keep you posted. Dutch


Moderated by  Phak1, Woogeroo 

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