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Old 07-16-2017, 09:44pm   #1 (permalink)
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Cool Put the 16" clutch pulley back together for the Olds

When I purchased the Olds engine back in Nov 2016, I also got a clutch pulley for the flywheel. You pull the handle out to disengage it and push it in to engage. That feature allows you to start the engine without the drag of whatever implement you are powering.

Unfortunately, at some point in time, it spent time out in the elements and was stuck fast. Took a bit of time to get it apart and more time soaking and gently prying to free it up.

It's now reassembled and ready to bolt onto the flywheel of the Olds

The clutch assembly is 16" in diameter and except for the brass greaser and wooden shoes, is all cast iron and extremely heavy.
Attached Thumbnails
Put the 16" clutch pulley back together for the Olds-olds-clutch-pulley-1.jpg  

Put the 16" clutch pulley back together for the Olds-olds-clutch-pulley-2.jpg  

Put the 16" clutch pulley back together for the Olds-olds-clutch-pulley-3.jpg  

Put the 16" clutch pulley back together for the Olds-olds-clutch-pulley-4.jpg  

Put the 16" clutch pulley back together for the Olds-078.jpg  

Put the 16" clutch pulley back together for the Olds-079.jpg  

Put the 16" clutch pulley back together for the Olds-080.jpg  

Put the 16" clutch pulley back together for the Olds-081.jpg  

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Old 07-19-2017, 03:26am   #2 (permalink)
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Dang. Missed the post.

That thing looks like it'd make you squeeze out a couple of hemorrhoids.
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Old 07-19-2017, 08:00am   #3 (permalink)
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That's an interesting piece of hardware; I'm trying to see how it works.

Do I assume correctly that the engine drives the inner circular part, and the outermost part is a sheave for a flat belt? What engages the clutch shoes between inner & outer parts? Is the friction surface tapered, i.e., conical, or cylindrical?

You have an interesting hobby!
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Old 07-19-2017, 08:22pm   #4 (permalink)
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Quote:
Originally Posted by OddBall View Post
Dang. Missed the post.

That thing looks like it'd make you squeeze out a couple of hemorrhoids.
This is heavy enough you do two wraps with duct tape around your pant legs at your ankles so you don't step on your balls

Quote:
Originally Posted by Stevedore View Post
That's an interesting piece of hardware; I'm trying to see how it works.

Do I assume correctly that the engine drives the inner circular part, and the outermost part is a sheave for a flat belt? What engages the clutch shoes between inner & outer parts? Is the friction surface tapered, i.e., conical, or cylindrical?

You have an interesting hobby!
Thanks, it can be interesting, frustrating and nerve racking all at the same time.

In the first picture, on the left is the handle, the center is the clutch assembly with wood lined shoes and the drive section that bolts to the flywheel.

Second picture is the reassembled clutch assembly.

How it works, the drive section is bolted directly to the flywheel. With the handle pulled out ( as shown in the second picture ), the clutch freewheels so the flat belt does not transmit power and the engine is easier to start.

To engage the clutch pulley, the handle ( which is independent / spins freely ) is pushed in. A simple cam action on the three flat bars pivots the curved wooden shoes against drive section. This makes the clutch work as one coupled unit. When the desired task is done, the handle is pulled out.

Lubrication between the drive section and the main clutch assembly is done by twisting the brass grease cup. ( obviously when the engine is not running ). The main body of the grease cup is threaded into the clutch assembly. The inside is hollow and the outside is threaded. The outer portion of the grease cup is threaded on the inside and filled with grease. A simple turn forces grease between the two parts. Simple but very effective.
Attached Thumbnails
Put the 16" clutch pulley back together for the Olds-olds-clutch-pulley-apart-.jpg  

Put the 16" clutch pulley back together for the Olds-olds-clutch-pulley-11.jpg  

Put the 16" clutch pulley back together for the Olds-grease-cup.jpg  

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Old 07-21-2017, 01:15pm   #5 (permalink)
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Lots of work and very nice!
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Old 08-05-2017, 09:57pm   #6 (permalink)
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Installed
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Put the 16" clutch pulley back together for the Olds-dsc02545.jpg  

Put the 16" clutch pulley back together for the Olds-dsc02544.jpg  

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Old 08-05-2017, 10:31pm   #7 (permalink)
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Umm, don't you have to be able to get to it to engage it?
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Old 08-05-2017, 10:34pm   #8 (permalink)
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Quote:
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Umm, don't you have to be able to get to it to engage it?
I have nothing to run it with.

I could engage it before starting the engine if I wanted to.
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