Noise from primary
Seasoned HDF Member
Joined: Jul 2014
Posts: 8,565
Likes: 3,317
From: Cental, MI
That I see...but, No Clue what inside the primary might be able to Touch that spot!!
I look all around the area indicated for rubbing by Clutch Components, and certainly all The way around for Chain Rub from running too Loose. Which certainly Is Noisy!!
Seasoned HDF Member
Joined: Oct 2015
Posts: 13,404
Likes: 34,325
From: Pine Flat Dam/South Bay Area, CA
Grand HDF Member
Joined: Sep 2022
Posts: 4,248
Likes: 3,668
From: Florida
If the hub wasn’t seated all the way and stuck forward it may have cut into the half moon area.. also maybe a previous owner tried the wrong clutch hub or a aftermarket variable pressure plate and it didn’t clear grinding that away.
‘’To do that much damage I’d also change the tranny main seal and barring in inner primary.
‘’To do that much damage I’d also change the tranny main seal and barring in inner primary.
Last edited by Rains2much; Feb 17, 2026 at 04:13 PM.
Grand HDF Member
Joined: Sep 2022
Posts: 4,248
Likes: 3,668
From: Florida
If the key rolls up as the hub is installed on the mainshaft, the hub flange will split at the keyway and it instantly becomes junk. I put a little Locktite on the key when I install it in the keyway and let it set up for a few hours before installing the hub. I'm not relying on dumb luck that way...
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Jul 21, 2023 12:11 PM
