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Author Topic: Longshot: Lower pulley for ARD Magneto  (Read 3181 times)

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Offline Turbogrimace

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Longshot: Lower pulley for ARD Magneto
« on: February 02, 2009, 10:05:31 AM »
The lower pulley for the belt drive on my mag is chewed up.  Does anyone know where I could find a replacement or does anyone have this piece laying around?

It's for a 3/8" belt, 15 teeth with a 7/16" bore, stepped to 3/8" at the set screws to position the pulley correctly.

I looked at Mcmaster, but they dont have anything with a 7/16" bore

Thanks for the help!
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Offline ken736cc

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Re: Longshot: Lower pulley for ARD Magneto
« Reply #1 on: February 02, 2009, 10:18:02 AM »
What type of bike? Can you post or e mail a picture?
ken@orientexpress.com.
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Offline Turbogrimace

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Re: Longshot: Lower pulley for ARD Magneto
« Reply #2 on: February 02, 2009, 10:24:10 AM »
Sorry, CB750.  Here are some pics of it.



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Offline Turbogrimace

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Re: Longshot: Lower pulley for ARD Magneto
« Reply #3 on: February 02, 2009, 12:11:49 PM »
I just found some markings on the top pulley which also needs to be replaced.  The top one is a brownings pulley 30xlm037x.570 and the bottom doesnt say brownings but it says 15xl. 
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Offline JLeather

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Re: Longshot: Lower pulley for ARD Magneto
« Reply #4 on: February 02, 2009, 02:34:32 PM »
Check with Applied Industrial in Frederick, MD.  They stock bearings and pulleys and stuff.  Only place around here I can think of.  Maybe McMaster Carr as well.
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Offline NitroHunter

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Re: Longshot: Lower pulley for ARD Magneto
« Reply #5 on: February 02, 2009, 02:39:57 PM »
Does anybody else have one of these ARD units?
If so, do you have the set up instructions or any literature?
I have one of these but have never personally used it...
Yes the old parts dig out is gaining momentum.
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Offline 754

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Re: Longshot: Lower pulley for ARD Magneto
« Reply #6 on: February 02, 2009, 08:33:38 PM »
Buy a Browning from any power transmission store, and bore it out, I bet ARD did..
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Offline Turbogrimace

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Re: Longshot: Lower pulley for ARD Magneto
« Reply #7 on: February 03, 2009, 05:35:16 AM »
I have a few companies Im going to call to see if they carry these pulleys or something similar. 

Nitro,  I have some lit on setting these things up.  go to www.magnetoparts.com they have some information about the magnetos and a bunch of replacement parts minus the adapter stuff to run on a 750.  The lit I "have" is from a friend who is compiling it all and putting it up on a website.  Ill try and remember to tell ya when it's done.
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Offline Big Jay

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Re: Longshot: Lower pulley for ARD Magneto
« Reply #8 on: February 03, 2009, 03:23:19 PM »
Most of that stuff was standard bearing shop items.

Jay
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Offline Sam Green Racing

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Re: Longshot: Lower pulley for ARD Magneto
« Reply #9 on: February 03, 2009, 03:42:25 PM »
At 24 pages long, you may find what you are looking for in here.

http://forums.sohc4.net/index.php?topic=14994.msg367210;topicseen#msg367210

Sam. ;)
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Offline NitroHunter

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Re: Longshot: Lower pulley for ARD Magneto
« Reply #10 on: February 03, 2009, 04:50:20 PM »
Just what the doctor ordered - Thanks!
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Offline Jim F

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Re: Longshot: Lower pulley for ARD Magneto
« Reply #11 on: February 03, 2009, 05:07:42 PM »
If you use the same one that I have and it looks like you do, I went to bearings and drives and they matched up the original one. (for the number of teeth and the width)
I machined these my self and have about 10 extra if you want one.
Jim
« Last Edit: February 03, 2009, 05:12:41 PM by big-jim »
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