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03-10-2013, 02:18 PM | #1 |
Junior Member
Join Date: Jun 2012
Location: Midland, Michigan
Posts: 16
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drum hitting backing plate
I have a 30 Tudor with hydraulic brakes ( There when I bought it) When I tighten the axle nut to 100+ pounds the drum will not move. It is positioned firmly against the backing plate. If the nut it tightened and then backed off and cotter pinned it moves but will still give a obvious grinding noise as the drum rubs the backing plate. Were the wrong bearings installed? Do I need a shim of some sorts? Anyone ever encountered this problem? Any help appreciated!
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03-10-2013, 02:23 PM | #2 |
BANNED
Join Date: May 2010
Location: Bucks County, PA
Posts: 11,454
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Re: drum hitting backing plate
i have seen that problem and these shims were used
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03-10-2013, 02:32 PM | #3 |
Senior Member
Join Date: Jun 2010
Location: Temecula, CA
Posts: 4,089
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Re: drum hitting backing plate
This is a common problem with hydraulic brakes. Mitch//PA has one answer, the quickest and easiest one. The other requires the whole rear end to be disassembled and .090" machined off the ends of the axle housings, this allows the backing plat to sit farther in, and the drum will then clear.
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03-10-2013, 03:27 PM | #4 |
Senior Member
Join Date: May 2010
Location: St Charles , Missouri
Posts: 1,998
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Re: drum hitting backing plate
I would not alter the housing but would remove a portion of the backing plate lip that mates close to the drum. You may have to take a significant amount off. I have done these in my lathe before and have also marked around them with thin tape and ground them as evenly as possible. That should take care of the problem. Many think that the hydraulics improve braking on an A. But in my opinion it is a step backward due to all the problems to overcome, and as a restorer it's hard to beat a properly rebuilt and adjusted stock brake system. When all the details are done well, and they are broke in and adjusted properly, they will stop on a dime with a stock restored brake system.
Larry s |
03-10-2013, 05:38 PM | #5 |
Senior Member
Join Date: May 2010
Location: albany
Posts: 466
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Re: drum hitting backing plate
i agree with larrys40..about hyd brakes...requires removing material from the backing plate and drum and often grinding the outer edge of the lining down ...
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03-10-2013, 06:02 PM | #6 |
Senior Member
Join Date: Dec 2010
Location: FRESNO, CA
Posts: 12,560
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Re: drum hitting backing plate
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