Distributor

oldkimmer · Feb 24, 2021

The solenoid retard is from a 1970 distributor. Kim

DeltaV · Feb 24, 2021

And they aren't cheap. Ask me how I know. Don't throw it away!

R413 · Feb 24, 2021

440 4 speed said:
R413 post #17
You are absolutely correct. And I am looking at both distributors now. The other B block prestolite I hadn’t looked at in years. It’s a single point, not dual. When I take the vacuum advance off the 440, the the cap from the single point drops right on. I hope I can use that cap.
Next question is can I swap the single point normal looking vacuum advance or any vacuum advance on the dual point?
Are the single point rotors the same as dual point, the look that way.
Thanks

Here is how the cap mounts on a cast iron distributor. Tabs on the clip base. Notice no tab on the vacuum advance to locate the cap. Compare to a single point or electronic distributor.
The second photo, see the gold colored arm from the vacuum advance. It has a hole in it to fit over the pin on the breaker plate.
A single point or electronic vacuum advance has a pin on the arm the goes into a hole on the breaker plate. So they are opposite how they connect.

440 4 speed · Feb 25, 2021

R413 said:
Here is how the cap mounts on a cast iron distributor. Tabs on the clip base. Notice no tab on the vacuum advance to locate the cap. Compare to a single point or electronic distributor.
The second photo, see the gold colored arm from the vacuum advance. It has a hole in it to fit over the pin on the breaker plate.
A single point or electronic vacuum advance has a pin on the arm the goes into a hole on the breaker plate. So they are opposite how they connect.

View attachment 1074713 View attachment 1074714

Thanks, back to the garage to have another look.

RemCharger · Feb 25, 2021

Nevada dan said:
distributors are fairly inexpensive why cobble something together the bushings are probably sloppy , is the shaft worn, will this fit that, on and on

Side note, the distributor is for a 67 440 magnum 4 speed. They aren't a dime a dozen around here.

RJRENTON · Feb 25, 2021

69Bee said:
Solenoid Retard Distributor

View attachment 1074309 View attachment 1074310

I totally agree....the distributor is from a 440+6 application. The std 440 used a single point distributor; 383 engines did not use dual point distributors for that model year, but did have the solenoid retard feature.
The carb had a insulated hot idle contact that completed the distributor's solenoid RETARD solenoid when on hot idle, to increase combustion chamber temps to insure all hydrocarbons were burned. As soon as throttle was opened, the retard solenoid was de-energized, allowing vacuum advance to operate normally.
BOB RENTON

Distributor

oldkimmer

FBBO Gold Member

DeltaV

Endeavor to persevere

R413

Well-Known Member

440 4 speed

FBBO Gold Member

RemCharger

FBBO Gold Member

RJRENTON

FBBO Gold Member

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