Speedometer disassembly question

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1950Panhead
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Speedometer disassembly question

#1

Post by 1950Panhead » Sun Aug 22, 2010 6:25 pm

How do I remove the magnet from the speedo bottom?
There is a brass pin in a blind hole.
Those who know please help.

Jerry



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Re: Speedometer disassembly question

#2

Post by Frankenstein » Sun Aug 22, 2010 9:57 pm

I've never found a non destructive way to do it. As I recall, the assembly is swaged together. I cut one apart looking for the answer once.
DD

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Re: Speedometer disassembly question

#3

Post by james » Sun Aug 22, 2010 10:36 pm

Anything to do with speedometers should go to the speedometer experts.
There are a few out there.
J Napierala out of Canada is one of the best.
I have 2 of his excellent restored speedometers.

Jim

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Re: Speedometer disassembly question

#4

Post by 1950Panhead » Mon Aug 23, 2010 2:22 am

Frankenstein (or anyone)
Do you have the parts you seperated?
It looks like the magnet may be swaged on the shaft above the spiral gear but below the magnet is a spiral gear that is on a shaft that goes through the housing to the square drive where the cable connects.
The square drive and the spiral gear have to separate.
It must be the brass pin. Many have done it, I could use a tip.
I know there are speedo experts. I want to increase my skills and be independent.

Jerry

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Re: Speedometer disassembly question

#5

Post by FlatHeadSix » Mon Aug 23, 2010 3:33 am

Jerry,
in our Knowledge base, documentation, library, Shop Manuals, you will find Technical Manual 9-1829A. It has an entire section on Stewart Warner speedos. start on about page 67 and read all about it. It looks like you need a special tool and fixture to do what you are trying to do.

here's a link to the section of the manual that you need

good luck!

mike
viewtopic.php?f=108&t=6966&start=0

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Re: Speedometer disassembly question

#6

Post by awander » Mon Aug 23, 2010 4:06 am

Is there a way to easily downlod the manuals in that section? I hate reading them online.

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Re: Speedometer disassembly question

#7

Post by Sir_Rat » Mon Aug 23, 2010 8:08 am

Awander, If you right click on the instruction page you are viewing and select copy then open a blank word document and right click on it and then select paste, you should be able to "save" that document to your computer one page at a time. You can then print the whole thing or selectively print only the pages you want. It worked for me anyways.
Let me know how your speedometer turns out so I can send mine to you when you are done :D Good Luck....Mike

Or you can just click and then download on the link Panhead just posted below :D
Last edited by Sir_Rat on Mon Aug 23, 2010 8:16 am, edited 1 time in total.

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Re: Speedometer disassembly question

#8

Post by panhead » Mon Aug 23, 2010 8:11 am

You can download the complete manual here: TM9-1829A download

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Re: Speedometer disassembly question

#9

Post by Perry Ruiter » Mon Aug 23, 2010 10:35 pm

1950Panhead wrote:How do I remove the magnet from the speedo bottom?
There is a brass pin in a blind hole.
Those who know please help.

Jerry
The magnet is permanently attached to the shaft. It doesn't come off. If it's loose the magnet assembly needs to be replaced. The shaft is flared over a brass collar where the cable screws in. You push the shaft out of this collar. Attached are three photos showing:
- the magnet and the thrust washers, collar and main frame assembly
- an NOS magnet
- the tools the press out (top) and re-flare the shaft (bottom)
james wrote:Anything to do with speedometers should go to the speedometer experts.
There are a few out there.
J Napierala out of Canada is one of the best.

Jim
I agree you should send your speedo to someone that knows what they're doing and has the proper tools to work on them. I can't tell you how many speedos I've had to fix after either the owner messed them up and/or damaged something or had someone incompetent "restore" the speedo. Attached are two photos (before and after) showing one such speedo (I had to take photos of it since I was appalled that someone would have the gall to actually deliver a speedo that was this wrong and charge for it. The owner had to pay again to have it done over).

As mentioned Janusz is one of the "good guys" that will promptly and correctly fix your speedo ... Perry
You do not have the required permissions to view the files attached to this post.

1950Panhead
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Re: Speedometer disassembly question

#10

Post by 1950Panhead » Tue Aug 24, 2010 2:09 am

Mike,
Thanks for posting the Stewart Warner instructions link.

Perry,
Thanks for posting the tool pictures.
Thanks also for posting the Glacier blue paint can, I was able to find a perfect match using the picture.

I know a lot but it sure is great to ask for help and get answers like this.
Jerry

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