1912 Crank Pulley

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Ruxstel24
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1912 Crank Pulley

Post by Ruxstel24 » Sat Jul 24, 2021 8:29 pm

Is a 1912 pulley the same as the common later crank pulley ?
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RajoRacer
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Re: 1912 Crank Pulley

Post by RajoRacer » Sat Jul 24, 2021 8:49 pm

No - a lot smaller diameter.


Kerry
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Re: 1912 Crank Pulley

Post by Kerry » Sat Jul 24, 2021 9:08 pm

Parts books show that all are a 3" until 1920. is your query more in regards to that pulley being flat rather than convex?

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Ruxstel24
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Re: 1912 Crank Pulley

Post by Ruxstel24 » Sat Jul 24, 2021 10:25 pm

Kerry wrote:
Sat Jul 24, 2021 9:08 pm
Parts books show that all are a 3" until 1920. is your query more in regards to that pulley being flat rather than convex?
Thanks Kerry and Steve, the diameter is the main thing I was after. I do have one smaller one.
I have a couple of the newer ones for sale and a fellow was interested in one for a 12 and I thought it would be different. He is in Australia also.


Allan
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Re: 1912 Crank Pulley

Post by Allan » Sat Jul 24, 2021 10:53 pm

Some earlier ones had four approx 1/4" holes in the back face, and a diamond shaped mark moulded into that face. I have no idea when these were deleted in later editions.

Allan from down under.


speedytinc
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Re: 1912 Crank Pulley

Post by speedytinc » Sun Jul 25, 2021 12:14 pm

Allan wrote:
Sat Jul 24, 2021 10:53 pm
Some earlier ones had four approx 1/4" holes in the back face, and a diamond shaped mark moulded into that face. I have no idea when these were deleted in later editions.

Allan from down under.
May be a canada/australia thing. Canadian large pulleys had cast & have 6 holes in the back with that diamond mark. Some, many all? dont know.
I just installed one on an American car. I hope it still runs.


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Re: 1912 Crank Pulley

Post by Allan » Sun Jul 25, 2021 6:59 pm

John, the 6 hole Canadian pulleys are a different beast. They are the large diameter style and they are a machined casting. The early pulleys are the smaller diameter pressed steel type. The very early ones have the 4 smaller holes in the rear face. Most of the small ones have flogged out pin holes and ill fitting centres. I rebuild these by machining up a new centre and welding it back in place of the worn section.

Allan from down under.


speedytinc
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Re: 1912 Crank Pulley

Post by speedytinc » Sun Jul 25, 2021 7:05 pm

Allan wrote:
Sun Jul 25, 2021 6:59 pm
John, the 6 hole Canadian pulleys are a different beast. They are the large diameter style and they are a machined casting. The early pulleys are the smaller diameter pressed steel type. The very early ones have the 4 smaller holes in the rear face. Most of the small ones have flogged out pin holes and ill fitting centres. I rebuild these by machining up a new centre and welding it back in place of the worn section.

Allan from down under.
I forgot to mention they were larger size.

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