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Gauche1968
Samba Member
Joined: April 13, 2006
Posts: 1561
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 Posted: Wed Jul 11, 2018 11:48 am Post subject: Rear Drum Brake Lube? |
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What all needs to be lubed on a rear brake job? Put silicone brake grease on the contact points between the shoes and the cylinders and the pivot points at the bottom. Anywhere else? Because they are a squealin' now. 
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Altoona
Samba Member
Joined: November 14, 2011
Posts: 590
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| Posted: Wed Jul 11, 2018 11:55 am Post subject: Re: Rear Drum Brake Lube? |
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| I like to lube the contact points on the backing plate where the edges of the shoes contact it as well. Not sure if that would solve your problem though. |
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Gauche1968
Samba Member
Joined: April 13, 2006
Posts: 1561
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| Posted: Wed Jul 11, 2018 2:59 pm Post subject: Re: Rear Drum Brake Lube? |
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| Altoona wrote: |
| I like to lube the contact points on the backing plate where the edges of the shoes contact it as well. Not sure if that would solve your problem though. |
Thanks!
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Jeffrey Lee
Samba Member
Joined: February 04, 2014
Posts: 1520
Location: Wisconsin
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| Posted: Wed Jul 11, 2018 3:59 pm Post subject: Re: Rear Drum Brake Lube? |
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Agree with Altoona. But don't use too much, lest it contaminate the brake shoe linings.
Though technically not a lube, I suppose, I suggest applying a bit of high-temp anti-seize compound to the interface between the drum and the hub, outlined here in red. It may reduce the amount of abeatin' necessary to remove it next time!
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djkeev
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Joined: September 30, 2007
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Location: Reading Pennsylvania
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Gauche1968
Samba Member
Joined: April 13, 2006
Posts: 1561
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| Posted: Wed Jul 11, 2018 7:15 pm Post subject: Re: Rear Drum Brake Lube? |
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All great tips!
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riceye
Samba Member
Joined: March 09, 2006
Posts: 1701
Location: Caledonia, WI
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| Posted: Wed Jul 11, 2018 7:47 pm Post subject: Re: Rear Drum Brake Lube? |
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The brake adjusting mechanism should be unscrewed, cleaned on a wire wheel, coated with anti-seize and reassembled. Also, the bleeder on the wheel cylinder should be removed, cleaned (being sure the passage is clear), lubed with anti- seize and reinstalled. The rubber cap on the bleeder should be in place when the brake job is done.
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vanagonjr
Samba Member
Joined: October 07, 2010
Posts: 3633
Location: Dartmouth, Mass.
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| Posted: Wed Aug 23, 2023 11:44 am Post subject: Re: Rear Drum Brake Lube? |
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While ordering brake parts I bumped into VW brake lube at $51 for 100g (!) and Febi brand for $12. Now the big question - is standard Sil-Glyde or other sil brake paste suitable here?
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MarkWard
Samba Member
Joined: February 09, 2005
Posts: 18770
Location: Retired South Florida
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| Posted: Wed Aug 23, 2023 12:06 pm Post subject: Re: Rear Drum Brake Lube? |
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| I have always used the grease I had on hand for the backing plates and pivot points. Just a film to keep metal on metal lubed. Usually CV grease in the little tubes or Redline CV2. But I've also used off the shelf wheel bearing grease. |
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mikemtnbike
Samba Member
Joined: March 26, 2015
Posts: 2931
Location: North Carolina
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| Posted: Wed Aug 23, 2023 6:09 pm Post subject: Re: Rear Drum Brake Lube? |
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Agree with Mark; drum brakes don't generate the same amount of heat as disc brakes, high temp and other specifics not as important.
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zerotofifty
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Joined: December 27, 2003
Posts: 3789
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| Posted: Thu Aug 24, 2023 7:23 am Post subject: Re: Rear Drum Brake Lube? |
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Lube the cylinder bores and piston with brake compatible grease. this will greatly reduce wear and corrosion of cylinder bore. Only use grease designed for this purpose. Regular grease can attack the rubber seals if used.
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MarkWard
Samba Member
Joined: February 09, 2005
Posts: 18770
Location: Retired South Florida
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| Posted: Thu Aug 24, 2023 7:54 am Post subject: Re: Rear Drum Brake Lube? |
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| zerotofifty wrote: |
| Lube the cylinder bores and piston with brake compatible grease. this will greatly reduce wear and corrosion of cylinder bore. Only use grease designed for this purpose. Regular grease can attack the rubber seals if used. |
I don't believe they were asking about rebuilding wheel cylinders. If that is the case, my mistake. Yes, you need to use a specific assembly lube for brake hydraulic cylinder assembly. |
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