A new problem

[Freeman]

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[Freeman]

I don't know how to replace it. This installation surprised me.

[Jerry Wieland]

Freeman

The first picture looks like an after-the-fact fix. Originally there was no seal in the engine, just an oil slinger. Someone put in an oring and then glued a seal. Kits have been available in the aftermarket for years. The right most nick circled I would not worry about but the other nick in the original slinger might be an issue. Behind the oring should be a snapring holding it in. That needs to come out and then in theory the slinger can come out. Admittedly this is easier done with the engine dismantled.

Jerry

[Freeman]

Freeman

The first picture looks like an after-the-fact fix. Originally there was no seal in the engine, just an oil slinger. Someone put in an oring and then glued a seal. Kits have been available in the aftermarket for years. The right most nick circled I would not worry about but the other nick in the original slinger might be an issue. Behind the oring should be a snapring holding it in. That needs to come out and then in theory the slinger can come out. Admittedly this is easier done with the engine dismantled.

Jerry

Thanks very much! Do you have any specific information about the kit? I would like to replace it

[Freeman]

[Freeman]

What kit do I need to buy to replace it? I don't have the information and I don't know what to buy.

[T. Cotten]

What kit do I need to buy to replace it? I don't have the information and I don't know what to buy.

My guess, Freeman,..

Somebody tried to use a roller bearing for the sprocket spacer, and then thought the O-ring and 'goober' would seal against oil, probably for a belt-drive.

If a belt-drive is installed, the shouldered thrust washer pressed into the main bearing housing must be replaced with a modern hybrid with a seal.

If you have a chain-drive, you only need the proper sprocket spacer.

....Cotten

[Freeman]

My guess, Freeman,..

Somebody tried to use a roller bearing for the sprocket spacer, and then thought the O-ring and 'goober' would seal against oil, probably for a belt-drive.

If a belt-drive is installed, the shouldered thrust washer pressed into the main bearing housing must be replaced with a modern hybrid with a seal.

If you have a chain-drive, you only need the proper sprocket spacer.

....Cotten

The guess is absolutely correct. Modern I don't know what to buy, can you recommend it to me。Thanks a lot.

[T. Cotten]

The guess is absolutely correct. Modern I don't know what to buy, can you recommend it to me。Thanks a lot.

We need more information, Freeman!

I must ask again: Is there a chain primary drive provided, or is it an after-market belt-drive assembly?

The original chain drive is easiest, by far.

....Cotten

[Freeman]

We need more information, Freeman!

I must ask again: Is there a chain primary drive provided, or is it an after-market belt-drive assembly?

The original chain drive is easiest, by far.

....Cotten

an after-market belt-drive assembly

[Freeman]

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[T. Cotten]

I know little about belt-drives, Freeman,..

So others will give better guidance than I, but please search Colony Sprocket Shaft Seal with Snap Ring #7411-2 Fits 36-54 HD Big Twin

....Cotten

[Jerry Wieland]

Freeman

The kit would probably come from Tedd's V twin but I think you need a dealership to order from them. J&P and numerous other vendors sell their stuff on the internet. Just look for pre 1955 HD sprocket shaft seal kit.

Jerry