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08-17-2020, 05:07 PM | #1 |
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Join Date: May 2013
Location: MN
Posts: 78
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51 Merc rear brake shoes help
Having issues replacing the rear brakes on the 51 Merc. The original linings were about 2 in in width and the new Raybestos are about 2 1/4 in and I cannot get the hold down spring to compress enough to connect to the back pin. Are these the correct shoes? Are the front shoes different width than the rear?
Any advice? Thanks |
08-17-2020, 06:03 PM | #2 |
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Join Date: May 2010
Location: East Hartford, Ct
Posts: 5,898
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Re: 51 Merc rear brake shoes help
Standard rear shoes are 11" x 1 3/4" - Front's are 11"x 2"
Think you have the wrong shoes. Correct shoes are available from NAPA and other vendors.
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DON'T RECALL DOING SOMETHING FOR MYSELF BASED ON SOMEONE ELSE'S LIKES OR DISLIKES Last edited by 51 MERC-CT; 08-18-2020 at 08:28 AM. |
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08-18-2020, 08:29 AM | #3 |
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Location: MN
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Re: 51 Merc rear brake shoes help
Thanks for the specs, I do have the wrong shoes - no wonder I'm having problems.
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08-18-2020, 09:04 AM | #4 |
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Location: Coral Springs FL
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Re: 51 Merc rear brake shoes help
Here's a photo of the rear.
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08-24-2020, 08:11 AM | #5 |
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Location: MN
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Re: 51 Merc rear brake shoes help
Any suggestions on installing the adjuster spring. Having a problem going over the adjuster.
Here is a pic of the spring thanks |
08-24-2020, 08:19 AM | #6 |
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Join Date: May 2010
Location: Coral Springs FL
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Re: 51 Merc rear brake shoes help
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Both shoes, spring and adjuster are assembled first as a single unit and then placed into position on the backing plate and at the same time fit against the top pin and inside wheel cylinder plungers. The small hold down pins with springs are then installed. Then the long retracting springs are "hooked" onto the top pin and plate.. You will find this to be very helpful if you own a Merc. https://www.ebay.com/itm/1949-51-Lin...a0fecc90d21352 Last edited by 19Fordy; 08-24-2020 at 09:18 AM. |
08-24-2020, 11:27 AM | #7 |
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Join Date: Jun 2010
Location: San Antonio, Texas
Posts: 16,422
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Re: 51 Merc rear brake shoes help
A good set of brake spring pliers is well worth the money when removing or installing return springs. They make the job very easy.
On brake shoes, I usually look for ones with riveted linings and materials similar to OEM. Wagner seems to still make them but I have no idea where. An FYI on brakes is that they are very similar to the early F100 pickups. The exception is the front drums. No one makes the Mercury 11-inch front drums but F100 drums can be modified to work. Rock auto is not a bad place to look for this stuff as long as they don't mislabel the parts. I've had two problems now with them sending me problem parts. One was mislabeled and the other was missing a key component part since the bag in the box had been opened. They purchase NOS aftermarket parts and this can lead to problems if they don't check them and I can safely say that you can't trust them to check them. In any case, a person can find the part number on Rock Auto and then purchase it somewhere else. |
08-24-2020, 12:27 PM | #8 |
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Join Date: May 2013
Location: MN
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Re: 51 Merc rear brake shoes help
Thanks for the info and help. The first set of rear shoes were from Obsolete Auto in OK and were 11in x 2 1/4 wrong width. The box was labled right but the parts were wrong. Now they want $30 to return them - yikes. I'll try and sell them here.
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08-24-2020, 02:17 PM | #9 | |
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Join Date: Nov 2012
Location: Wichita KS
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Re: 51 Merc rear brake shoes help
Quote:
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08-24-2020, 03:31 PM | #10 |
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Join Date: May 2010
Location: Palmer, Alaska
Posts: 1,575
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Re: 51 Merc rear brake shoes help
stay away from Obsolete auto in OK. City. my past experience was not good, and ended up costing me money, and no parts that would work. the do not know the difference between a '52-53 Merc. and a 49-51 merc. poor service
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