Author Topic: Dual points distributor  (Read 727 times)

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Offline RBoyer70B2

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Dual points distributor
« on: February 08, 2020, 07:28:58 am »
I'm new to this Forum and was wondering what you guys use instead of the original Dual points Distributor... Thanks Bob

Offline boss 331

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Re: Dual points distributor
« Reply #1 on: February 08, 2020, 09:30:53 am »
289 hipo,but the stock one is better! Bill

Offline GGBAAS

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Re: Dual points distributor
« Reply #2 on: February 08, 2020, 10:28:21 am »
This is what I did.  I used a regular single point dist with the correct springs, weights and reluctor arm for a Boss 302 distributor.  Add a vacuum advance.  I used my original x-12. You can use the single point plate or switch to magnetic points like a Petronix I.
« Last Edit: February 08, 2020, 08:56:47 pm by GGBAAS »
Dearborn, 1970 April build

Offline swboss302

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Re: Dual points distributor
« Reply #3 on: February 08, 2020, 04:59:55 pm »
I use an 80's ford duraspark 302 distributor for the magnetic trigger, installed the original vacuum advance and wired it to a 6AL MSD box. I get wicked spark and only the trained eye can tell it's not original.

Offline gtabert

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Re: Dual points distributor
« Reply #4 on: February 08, 2020, 07:31:16 pm »
Stick Petronix in it done, stock look, simple and cheap, it's easy to mask the two wires going into the distributor, get the 12v trigger from the carb solenoid
0F02G129946  Grabber Blue / White Int.
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Offline Bossgold

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Re: Dual points distributor
« Reply #5 on: February 09, 2020, 11:19:13 pm »
First, if you buy a restored dual point C9ZF or D0ZF-12127 E make sure the Distributor shaft is good. Its simple, go get it tested on a sun Distributor machine like a 504. If the points that are in there are bouncing all around then restored or not its probably a worn shaft.  If you get the shaft fixed it will work great and you don't need anything else

Offline elvis

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Re: Dual points distributor
« Reply #6 on: February 10, 2020, 06:26:43 am »
289 Hipo with petronix in it dialed in on the Sun machine..and old black dist cap... works like a charm.

Offline RBoyer70B2

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Re: Dual points distributor
« Reply #7 on: February 10, 2020, 07:12:28 am »
Thank you everyone for all this valuable information

Offline Tim Barker

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Re: Dual points distributor
« Reply #8 on: February 10, 2020, 02:54:47 pm »
I modified a standard 302 distributor by removing the vacuum advance boss. I then installed a dual point conversion plate to eliminate the vacuum advance plate. On that I installed a Pertronix Ignitor electronic ignition. The biggest problem is getting the curve correct. The distributor has an incorrect 15L cam plate and I have been unable to locate the correct 11L. The 11L will give you the correct 22 deg. of advance where the 15L give you 30 deg. advance. I had to solve that problem by welding and filing the plate to give me the advance I wanted.

Tim
« Last Edit: February 11, 2020, 12:43:32 am by Tim Barker »
1970 BOSS 302, Yellow on White, 0F02G150833

Offline preaction

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Re: Dual points distributor
« Reply #9 on: February 10, 2020, 03:20:23 pm »
Has anyone here had a worn distributor shaft chrome plated to build up to tolerance a shaft that is clearly to loose ?

Offline cobra427

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Re: Dual points distributor
« Reply #10 on: February 13, 2020, 12:52:31 pm »
I don't think chrome plating would be cost effected, lots of 289-302 shafts out there.

Offline gt350hr

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Re: Dual points distributor
« Reply #11 on: February 13, 2020, 02:48:33 pm »
  The upper bushing in the distributor should be replaced at the same time.
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Offline David189412

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Re: Dual points distributor
« Reply #12 on: February 19, 2020, 11:13:10 am »
I install rubber washer hose over the post stop to adjust the mechanical advance curve.
David