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Advance Springs Needed for "Slot" Style Upper Rotor Shaft Autolite Dist.

Posted By montego_gto 15 Years Ago
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Advance Springs Needed for "Slot" Style Upper Rotor Shaft Autolite...

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montego_gto
Posted 15 Years Ago
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Hi all,

I did some searching and found some info on my y-block distributor.  It is the early style I learned.  One of the springs disintegrated at some point in the past due to rust.  I want to replace them.  I also figured out that not all springs are the same when looking at them from the length perspective.  My MSD's springs are quite a bit shorter than what the Y's distributor uses.  My later 60's Merc's distributor has shorter springs as well.  Or is this spring thing just my imagination and they are all pretty close to the same? 

Does someone sell a kit for distributor springs for these early distributors?  I want to do some experimenting with lighter and heavier spring combos like what I did with my 69's MSD distributor. 

Thanks everyone!

Nick in WI

 

 

 

 

The "slot" style upper rotor shaft (Autolite distributor) has a pair of openings that engage the flyweight pins -

modifiedupperrotorshaft.jpg modified upper rotor shaft picture by AZ28_7442

The slots in this one were arranged to provide 20° at the distributor and 40° at the crank. Stiff springs are the norm. 

modificationdiagram.jpg mods to slots picture by AZ28_7442

The later arrangement (Motorcraft Distributor) has two notch openings that can be switched to alter the travel stops. The stamped "13L" and "18L" markings are indicative of the distirbutor degrees they allow. There are more than a few variants. I've got a "10L" and "15L" before too.

UpperRotorShaft.jpg picture by AZ28_7442

This one has a 13° and an 18° - with the notch opening sizes shown. A 10L opening could be enlarged if you wanted - just takes a file.

    Steve Metzger       Tucson, Arizona

     

Edited: Sunday, November 08, 2009 7:18 AM by AZ28



'60 F100 with '62 4V 292 y-block
Ted
Posted 15 Years Ago
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Mr. Gasket #925D springs are listed for the Ford distributors but I believe they are specific to the later model distributors.  Someone correct me on this if I’m incorrect.  As inexpensive as the Mr. Gasket spring kits are, then some of the other spring kits for other distributors might expand some of the options for tailoring the spring rates (ie. #925B and #928G).

Lorena, Texas (South of Waco)


Hoosier Hurricane
Posted 15 Years Ago
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Nick:

Reading your post, I got a feeling you are talking about the '54-'56 loadomatic distributor when you said  "early".  Does the distributor you are working on have centrifugal weights, or is it vacuum advance only?

John - "The Hoosier Hurricane"
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montego_gto
Posted 15 Years Ago
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It has weights and a vacuum advance.  It was installed on the 292 in my 1962 F100.  I have no idea how original it is to the truck though. 

While searching sites for info on the springs, I came across the "early" reference numerous times when someone was describing this style distributor- the style with the slot upper rotor shaft. 

Nick

'60 F100 with '62 4V 292 y-block

oldcarmark
Posted 15 Years Ago
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Heres a question for you to consider.You can buy a rebuilt "late" distributor for $50.00 OR less.Application to ask for is 64F100 with 292.(last year used in N.America).Gives you fresh bushings,breaker plate,springs,points,condensor,primary wire, and a new adjustable vacuum advance to fine tune your timing curve..Much easier to "play" with these than the early style  and you can use your existing cap and wires.Anyone on this site that has upgraded carbs from original has had to purchase a late style distributor(myself included).Just an idea to consider.

http://forums.y-blocksforever.com/Uploads/Images/a82cee8f-be33-4d66-b65d-fcd8.jpg  http://forums.y-blocksforever.com/uploads/images/339ed844-0bc3-4c73-8368-5dd3.jpg
charliemccraney
Posted 15 Years Ago
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What he has could be called the early version of the late distributor. More specifically, he has an Autolite, rather than a Motorcraft.


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Talkwrench
Posted 15 Years Ago
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Mark where do I find a reco dissy for $50 ! You have a link...?

http://forums.y-blocksforever.com/Uploads/Images/02c74785-3ce2-4b80-a66c-f31f.jpg

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oldcarmark
Posted 15 Years Ago
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Autozone online shows price as $38.00 +$15.00 core.Napa much higher for exact same item from same supplier.Cardone #30-2808.I bought mine here in Canada and it was $100.00 with core.Who else  has found a good  price on these and where?

http://forums.y-blocksforever.com/Uploads/Images/a82cee8f-be33-4d66-b65d-fcd8.jpg  http://forums.y-blocksforever.com/uploads/images/339ed844-0bc3-4c73-8368-5dd3.jpg
Talkwrench
Posted 15 Years Ago
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I would need to buy one outright as it has to be shipped all the way to Oz. Bit hard doing the post both ways...

http://forums.y-blocksforever.com/Uploads/Images/02c74785-3ce2-4b80-a66c-f31f.jpg

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oldcarmark
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Maybe one of the frequent flyers from Oz would pick one up for you.

http://forums.y-blocksforever.com/Uploads/Images/a82cee8f-be33-4d66-b65d-fcd8.jpg  http://forums.y-blocksforever.com/uploads/images/339ed844-0bc3-4c73-8368-5dd3.jpg


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