Brake plate wearing on drum

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Paul
Posts: 22
Joined: Fri May 10, 2019 3:23 am
Location: Lk. Stevens, WA

Brake plate wearing on drum

Post by Paul »

I was riding today and noticed aluminum dust on my rear brake plate. Upon further inspection I could see if was rubbing against the drum. Any thoughts why?
1B7607FA-C2FF-425A-93F1-95EF2AB71AE3.jpeg
1966 Norton N15CS
1975 Yamaha XS650 Brat Project
1975 Road Toad
1979 Yamaha XS650 Special
1990 HD Springer
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Bullfrog
Posts: 2784
Joined: Mon Jul 22, 2013 4:05 pm
Location: Oregon, 12 miles from the center of the Hodaka Universe(Athena)

Re: Brake plate wearing on drum

Post by Bullfrog »

Bearing(s) worn out?
Keep the rubber side down!
Paul
Posts: 22
Joined: Fri May 10, 2019 3:23 am
Location: Lk. Stevens, WA

Re: Brake plate wearing on drum

Post by Paul »

Bullfrog wrote:Bearing(s) worn out?
I just replaced the bearings and the seals last week. I should have mentioned that. I’ll be pulling the rear wheel off today to inspect it, but I’m 99% sure everything has been installed correctly.
1966 Norton N15CS
1975 Yamaha XS650 Brat Project
1975 Road Toad
1979 Yamaha XS650 Special
1990 HD Springer
User avatar
Bullfrog
Posts: 2784
Joined: Mon Jul 22, 2013 4:05 pm
Location: Oregon, 12 miles from the center of the Hodaka Universe(Athena)

Re: Brake plate wearing on drum

Post by Bullfrog »

hmmmm, OK . . . bent axle?

? forgot to reinstall the spacer tube between the hub bearings???

??? Wrong bearings? Sounds silly I know but, I once got a set of bearings for the front wheel from the local NAPA store. I gave him the bearing number (6201) . . . and he gave me some 6201 bearings EXCEPT these had a 1/2" center hole (not the metric sized hole I was after). The wheel was a bit floppy on the axle with those bearings (didja notice how far I got before I noticed the problem??)

Ed
Keep the rubber side down!
Paul
Posts: 22
Joined: Fri May 10, 2019 3:23 am
Location: Lk. Stevens, WA

Re: Brake plate wearing on drum

Post by Paul »

I’ll check the axle when I pull the wheel. Spacer is installed. Hoping I got the correct bearings from Hodaka parts. I compared them before the reinstall. The seals went in almost too easy.
1966 Norton N15CS
1975 Yamaha XS650 Brat Project
1975 Road Toad
1979 Yamaha XS650 Special
1990 HD Springer
Joe Ormonde
Posts: 357
Joined: Sat Oct 07, 2017 4:26 pm

Re: Brake plate wearing on drum

Post by Joe Ormonde »

I had this happen on a 1970 Hodaka. The Axle was bent. Your Model is so burly that the Rim will Taco first! Joe.
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Bullfrog
Posts: 2784
Joined: Mon Jul 22, 2013 4:05 pm
Location: Oregon, 12 miles from the center of the Hodaka Universe(Athena)

Re: Brake plate wearing on drum

Post by Bullfrog »

. . . and I hope this isn't it - check the "tower" which contains the bearing on the brake side for cracks.

Ed
Keep the rubber side down!
Paul
Posts: 22
Joined: Fri May 10, 2019 3:23 am
Location: Lk. Stevens, WA

Re: Brake plate wearing on drum

Post by Paul »

I’m wondering if I got these two bearings reversed in the drum section. Or does it make a difference? Axle is straight.
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1966 Norton N15CS
1975 Yamaha XS650 Brat Project
1975 Road Toad
1979 Yamaha XS650 Special
1990 HD Springer
Paul
Posts: 22
Joined: Fri May 10, 2019 3:23 am
Location: Lk. Stevens, WA

Re: Brake plate wearing on drum

Post by Paul »

So I looked at the old bearings and lo and behold, there were two thin washers stuck to it. One on each side. Removed the new bearing and inserted the washers and it no longer rubs. Crises averted. Thanks for the guidance.
1966 Norton N15CS
1975 Yamaha XS650 Brat Project
1975 Road Toad
1979 Yamaha XS650 Special
1990 HD Springer
Joe Ormonde
Posts: 357
Joined: Sat Oct 07, 2017 4:26 pm

Re: Brake plate wearing on drum

Post by Joe Ormonde »

Are the 2 seat rings (Part #929273) installed ? Joe.
Joe Ormonde
Posts: 357
Joined: Sat Oct 07, 2017 4:26 pm

Re: Brake plate wearing on drum

Post by Joe Ormonde »

You beat me to the Keyboard !!! Joe.
Paul
Posts: 22
Joined: Fri May 10, 2019 3:23 am
Location: Lk. Stevens, WA

Re: Brake plate wearing on drum

Post by Paul »

Joe Ormonde wrote:Are the 2 seat rings (Part #929273) installed ? Joe.
They are now! 8-)
1966 Norton N15CS
1975 Yamaha XS650 Brat Project
1975 Road Toad
1979 Yamaha XS650 Special
1990 HD Springer
matt glascock
Posts: 2520
Joined: Thu Oct 24, 2013 5:20 pm

Re: Brake plate wearing on drum

Post by matt glascock »

Great stuff here guys. Excellent troubleshooting and problem solving. A good refresher/review of the Wombat wheel mounting department. Happy ending. Its all there. Thanks.
Bert44
Posts: 79
Joined: Sun Nov 27, 2016 4:39 pm
Location: Australia

Re: Brake plate wearing on drum

Post by Bert44 »

If you’ve still got the spacer out, it’s a good time to file 2 small u shape recesses on one end. It helps when next time you knock the bearings out as a drift will fit in the gap.
Bert
1968 Ace 100
94 & 94A Wombat
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