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YDBD
Samba Member
Joined: February 25, 2017
Posts: 891
Location: Bavaria, Germany
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 Posted: Sun Mar 18, 2018 9:35 pm Post subject: Brake Drum Stud Spins |
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I have early brake drums that have been drilled and studs with splines were pressed in. One of the studs is spinning, don't really want to re do a new drum.
Can I pull the drum off and just tack weld the stud?
Thanks,
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'56 pan Dune Buggy since '69
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Vanapplebomb
Samba Member
Joined: November 03, 2010
Posts: 5417
Location: Holland, MI
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| Posted: Mon Mar 19, 2018 7:36 am Post subject: Re: Brake Drum Stud Spins |
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I did that. Tack weld it down in a couple places near the inside perimeter of the drum. The steel doesn’t like to weld to the cast iron super well, so at some point it will likely pop off the drum. If you tack weld near the inner perimeter of the drum, the stud won’t spin on you even if the weld pops off the drum. 
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http://www.thesamba.com/vw/forum/viewtopic.php?t=487021 |
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Dale M.
Samba Member
Joined: April 12, 2006
Posts: 20380
Location: Just a tiny bit west of Yosemite Valley
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| Posted: Mon Mar 19, 2018 7:44 am Post subject: Re: Brake Drum Stud Spins |
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You can tack it... But first I would pop it out and see if just replacing stud may fix problem.... It could be the splines on stud are just thrashed...
Dale
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Boolean
Samba Member
Joined: January 19, 2012
Posts: 1712
Location: Stockholm
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| Posted: Mon Mar 19, 2018 8:12 am Post subject: Re: Brake Drum Stud Spins |
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Tighten the stud with a socket or something between the lugnut and the drum so it sits square before tacking. Don't do a weld all around the stud, just one or two tacks.
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HotStreetVw
Samba Member
Joined: October 03, 2004
Posts: 871
Location: Wild West
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| Posted: Mon Mar 19, 2018 10:29 am Post subject: Re: Brake Drum Stud Spins |
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I don't recommend welding a hardened stud to a cast drum. I would replace the stud and red loctite it in. or replace the drum
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4inBhore
50 Split - 2724cc NA. Haltech injected
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vwracerdave
Samba Member
Joined: November 11, 2004
Posts: 15309
Location: Deep in the 405
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| Posted: Mon Mar 19, 2018 11:45 am Post subject: Re: Brake Drum Stud Spins |
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Dorman makes hundreds of press in studs. Find one with the next size larger splines area with the same thread size and press it in.
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2017 Street Comp Champion - Thunder Valley Raceway Park - Noble, OK
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Dale M.
Samba Member
Joined: April 12, 2006
Posts: 20380
Location: Just a tiny bit west of Yosemite Valley
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| Posted: Mon Mar 19, 2018 12:55 pm Post subject: Re: Brake Drum Stud Spins |
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Section 10 pages around 160+ ...
https://www.dormanproducts.com/flipbook/dorman/automotive-hardware/2006-Automotive-Hardware.pdf
If you really need to you can order 1 to 100 with Dorman part number through places like Rockauto.com or any distributor that handles Dorman parts...
Dale
_________________
“Fear The Government That Wants To Take Your Guns" - Thomas Jefferson.
"Kellison Sand Piper Roadster" For Street & Show.
"Joe Pody Sandrover" Buggy with 2180 for Autocross (Sold)
============================================================
All suggestions and advice are purely my own opinion. You are free to ignore them if you wish ... |
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60ragtop
Bonneville Belt Bitch
Joined: March 13, 2006
Posts: 7800
Location: Big Wonderful WYO 82401
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| Posted: Mon Mar 19, 2018 2:48 pm Post subject: Re: Brake Drum Stud Spins |
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Yes OK to weld. We used to weld them in on the circle track ghia. Handled the abuse of constant left turns real well 
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Rick
Certified Mechanic by the State of Michigan in 1977
ASA certified in 1987
Certified Hunter Wheel Alignment Master Technician 1986
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rs58rag
Samba Member
Joined: August 22, 2010
Posts: 419
Location: riverside,ca
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| Posted: Mon Mar 19, 2018 4:25 pm Post subject: Re: Brake Drum Stud Spins |
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| What vwracerdave said^ |
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YDBD
Samba Member
Joined: February 25, 2017
Posts: 891
Location: Bavaria, Germany
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| Posted: Mon Mar 19, 2018 9:46 pm Post subject: Re: Brake Drum Stud Spins |
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thanks for the help/info/feedback!
I will pull the drum and do a closer inspection. Won't be on the road for a while as it's 10 degrees outside....wtf March?
_________________
'56 pan Dune Buggy since '69
don't live in the past...but when I did:
'67 bug
'64 baja
'60 dune buggy
'73 Personenkraftwagen Type 182 "Thing" |
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modok
Samba Member
Joined: October 30, 2009
Posts: 26790
Location: Colorado Springs
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| Posted: Mon Mar 19, 2018 9:49 pm Post subject: Re: Brake Drum Stud Spins |
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| loctite 620 |
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YDBD
Samba Member
Joined: February 25, 2017
Posts: 891
Location: Bavaria, Germany
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| Posted: Tue Apr 03, 2018 9:30 am Post subject: Re: Brake Drum Stud Spins |
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Took it across the street to my landlords construction business, the Geschaftsmeister shot two welds on it in about 20 seconds. Perfect!
_________________
'56 pan Dune Buggy since '69
don't live in the past...but when I did:
'67 bug
'64 baja
'60 dune buggy
'73 Personenkraftwagen Type 182 "Thing" |
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earthquake
Samba Member
Joined: January 10, 2008
Posts: 3984
Location: SANDY VALLEY, NEVADA
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| Posted: Tue Apr 03, 2018 9:34 am Post subject: Re: Brake Drum Stud Spins |
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I prefer to tack weld them with a TIG welder and Silicon Bronze wire in 3 places around the stud flange.
Casey
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