Dizzy Spring Swap
Postmaster
Joined: Mar 2011
Posts: 2,698
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From: Taxachusetts
What weights/cams are you using - 10..13...15...18?
For starters, you could use a medium (silver) and a heavy (blue)....I think those be the colors for the "stiffness."
Do you also have an adjustable vac can with the limiter?
For starters, you could use a medium (silver) and a heavy (blue)....I think those be the colors for the "stiffness."
Do you also have an adjustable vac can with the limiter?
Posting Guru
Joined: Mar 2006
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Postmaster
Joined: Mar 2011
Posts: 2,698
Likes: 7
From: Taxachusetts
No, you got a kit...the different tension (colored) springs allows you to change the rate (RPM) at which your mechanical advance comes in and ends. The number on your dist. cam/weight will tell you where you're set for distributor timing....10, 13, 15, etc. You should also have an instruction sheet telling you what springs do what and at what RPM.
Example - if you use 2 springs with the least tension (color ?), your mechanical advance might come in at, say, 800 RPM and be "all in" at 1800 RPM. That's just a "fer instance," mind you.
Example - if you use 2 springs with the least tension (color ?), your mechanical advance might come in at, say, 800 RPM and be "all in" at 1800 RPM. That's just a "fer instance," mind you.
Posting Guru
Joined: Mar 2006
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Have you got a part #? As far as i'm aware...there is nothing for the Ford distributors other than the Mr. Gasket 925D.
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Cargo Master
Joined: Jul 2006
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From: Concord, CA
All I have ever seen, for Ford, is the Mr. Gasket kit. With that kit you don't want those two springs in the dizzy at the same time. I tried it and the 360 pinged constantly at 65 and especially so when slight accelerating. Since I acquired many different springs from Fords I looked for a medium tension spring. I used that plus a light to run the 360. That plus one jet size larger eliminated my pinging.
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Postmaster
Joined: Mar 2011
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From: Taxachusetts
I suppose one could use the Ford Mr. Gasket p/n (925D) and then bend/adjust the spring tabs according to their recurve desires.
Personally, I like the option of using different combination of springs rather than bending the cam tabs.
Posting Guru
Joined: Mar 2006
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But if you're having good luck with the GM kit- that sounds good to me.
that Crane kit for the Fords has been out-of-production for as long as i can remember. i've never found one.
Postmaster
Joined: Mar 2011
Posts: 2,698
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From: Taxachusetts
Summit (via google...crane #99607-1) has the kit - adjustable vac can, allen wrench and sets of springs - $48 and some change.
Haven't had any problems with the GM springs - thanks.
Maybe the OP would post the kit he bought?
Haven't had any problems with the GM springs - thanks.
Maybe the OP would post the kit he bought?
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