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Unread 09-19-2013, 01:47 PM   #1
Jcreepers
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1973 CJ5 
 
Join Date: Aug 2013
Location: citrus heights, ca
Posts: 6
Dual point dwell 304 v8?

I did search although could not find the answer. I spent 1/2 hr looking. Anyone willing to share the procedure and specs please. 1973 CJ 304 V8 Mallory Dual Point. Thank you very much in advance.

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Unread 09-19-2013, 02:24 PM   #2
CSP
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Location: Colorado
Posts: 12,748
Dwell angle won't change because it has dual points. Find the stock spec for the factory distributor and duplicate it.
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Unread 09-20-2013, 09:47 AM   #3
jeepdaddy2000
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1971 CJ5 
 
Join Date: Jan 2002
Location: Secret Squirrel hideout, afghanistan
Posts: 6,300
You will have to set them individually.This is because one set opens and the other set closes.
You will need to block one set open in order to adjust the other.
The easiest is to use a feeler gauge (I believe .020, but my memory fails me and I have no access to any manuals right now. Might try a search of the Mustang and Camaro forums). You can use a dwell meter as well, but the feeler gauge method is easier and is going to be very close to the dwell reading if done right.
I would insure your dist has a vac adv (they come both ways). This will help your raise your cruising fuel economy by quite a bit.
Personally, unless your running a retro rod, I don't see much use for these today. There are quite a few inexpensive options in the electronic ignition arena that will perform better than the early dual set ups, and will require no routine maintenance.
I ran a non vac adv unit on a 65 GT fastback we owned back in the day (wish we still had that car) and wound up ditching it for a stock point style unit, which performed much better.
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Unread 09-21-2013, 02:54 PM   #4
Jcreepers
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1973 CJ5 
 
Join Date: Aug 2013
Location: citrus heights, ca
Posts: 6
Quote:
Originally Posted by jeepdaddy2000 View Post
You will have to set them individually.This is because one set opens and the other set closes.
You will need to block one set open in order to adjust the other.
The easiest is to use a feeler gauge (I believe .020, but my memory fails me and I have no access to any manuals right now. Might try a search of the Mustang and Camaro forums). You can use a dwell meter as well, but the feeler gauge method is easier and is going to be very close to the dwell reading if done right.
I would insure your dist has a vac adv (they come both ways). This will help your raise your cruising fuel economy by quite a bit.
Personally, unless your running a retro rod, I don't see much use for these today. There are quite a few inexpensive options in the electronic ignition arena that will perform better than the early dual set ups, and will require no routine maintenance.
I ran a non vac adv unit on a 65 GT fastback we owned back in the day (wish we still had that car) and wound up ditching it for a stock point style unit, which performed much better.
Thank YOU VERY much, that is exactly what I was looking for. I do appreciate you taking the time to write all that. Thanks again!!
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Unread 09-21-2013, 07:32 PM   #5
Texian
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1978 CJ7 
 
Join Date: Aug 2013
Location: Dallas, Texas
Posts: 49
Just in case you are new to points....

As the rubbing block wears and the point gap changes,you need to reset your timing.

Any time you reset the points it changes your timing.
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