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Drain plug leak

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Old May 1, 2022 | 07:43 AM
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Default Drain plug leak

On my 01 road king I have a very small leak from my transmission drain plug.

I've tried a new plug and a new o ring. I have these orange o rings, does it look like in the pic the o ring is in the right place after I tightened the plug?




Thanks guys.
 
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Old May 1, 2022 | 07:46 AM
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Looks like it should seal-up...maybe the pan threads are bad? Have you tried thread sealer (e.g. plumber's tape) on the plug?
 
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Old May 1, 2022 | 07:57 AM
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I don't see that much o-ring sticking out when I tighten mine. Is the o-ring the same size as the original? And if it's not an OEM o-ring I'd try one of those along with a little thread take and torque the bolt to to spec.

Paul
 
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Old May 1, 2022 | 07:59 AM
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Looks over torqued to me, O ring may be out of position.
 
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Old May 1, 2022 | 07:59 AM
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You have the wrong o-ring.

You should not see the o-ring when the plug is tightened up.

The plug is sealed by the o-ring, there is no need for thread sealant, it does nothing to seal the plug (and is not called for by the service manual).
 

Last edited by Dan89FLSTC; May 1, 2022 at 08:01 AM.
Old May 1, 2022 | 09:31 AM
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Thanks guys.

These o rings were suppose to be the right ones. I guess I need to get some OEM Harley o rings. I'll try to get some ordered.
 
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Old May 1, 2022 | 11:53 AM
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You don't have to order o-rings. Determine the correct size and get some from Ace Hardware or someplace like that.
 
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Old May 1, 2022 | 12:27 PM
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pretty sure there's a little recessed area on the plug that the o-ring seats into (at base of threads), and agree with Dan^^ above I don't recall mine ever squishing outward like your pic.

I bought a big bag of o-rings off Ebay for the bike. Sure, can get at dealer (did that a time or few) but then went the bulk route.

don't overtorque
 
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Old May 1, 2022 | 12:49 PM
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Yeah these are the current o rings I have, they are the right size unless I got a defective batch.

Harley o rings Harley o rings

If I'm understanding you guys correctly, once I tighten it the oring should be up in the hole and the face of the plug meets the pan metal to metal?

 
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Old May 1, 2022 | 12:56 PM
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Maybe you have the wrong plug, looks ok from pic though
 
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