Special tool for rear brake rebuilds?

Maintenance advice to keep your Spider in shape.
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124ADDHE
Posts: 365
Joined: Tue Oct 19, 2010 11:19 pm
Your car is a: 1974 Spider Amalgamation with C40 Solex
Location: Salmon Arm, BC, Canada

Special tool for rear brake rebuilds?

Post by 124ADDHE »

So what has everyone been doing to rebuild their rear brakes? This job is a bit of a pain in the ass! I found a rear caliper had started to leak..turns out it was partially frozen..time to rebuild, the bores look fine, just some crud. Job went pretty well until it came time to compress the spring washers...i tried a few things and ended up taking a deep 3/4 socket and grinding two channels 180 degrees apart and then using a c-clamp to drive the socket onto the spring washers - it worked pretty well, i still had to manipulate the little cam a bit to accept the parking brake shaft. Just thought i would pass this along; $7 (+ $8 tube of synthetic brake grease) is a lot cheaper than $90 for rebuilt units + you can paint the calipers and now have a tube of proper grease to use for your caliper sliders so that you are not tempted to use wheel bearing or lithium because "thats all you have around"....yes, thats me :oops:

If anyone wants a picture of my "tool" :wink: ill post one.
Regards,
Keith Cox
1973 124 Spider
1973 John Deere 500c backhoe
1987 Jaguar VDP
2013 passat tdi
2015 cherokee
WYSpider

Re: Special tool for rear brake rebuilds?

Post by WYSpider »

Compressing the spring washers is the biggest pain.
Image

I ended up grinding the upper end of a clamp I had laying around to fit the area where the spring washers are located.
Image

Then I wrote "FIAT" on it to make it an official tool :)
Image
azygoustoyou

Re: Special tool for rear brake rebuilds?

Post by azygoustoyou »

I did something similar. I only grinded a little off one corner so it would just fit and the clamp can still be used for other things.
User avatar
124ADDHE
Posts: 365
Joined: Tue Oct 19, 2010 11:19 pm
Your car is a: 1974 Spider Amalgamation with C40 Solex
Location: Salmon Arm, BC, Canada

Re: Special tool for rear brake rebuilds?

Post by 124ADDHE »

So did you actually compress on the plunger? or did you use a shim on the washer to compress past the caliper body? Grinding the c-clamp is probably easier than grinding down a socket. Thanks.
Regards,
Keith Cox
1973 124 Spider
1973 John Deere 500c backhoe
1987 Jaguar VDP
2013 passat tdi
2015 cherokee
azygoustoyou

Re: Special tool for rear brake rebuilds?

Post by azygoustoyou »

This is what I grinded off my clamp to get the top right corner of the clamp in this pic to go over the plunger and clamp it down, then you can put the pawl in. You only want to be on the edge of the plunger or you won't get the pawl in all the way.
Image
User avatar
124ADDHE
Posts: 365
Joined: Tue Oct 19, 2010 11:19 pm
Your car is a: 1974 Spider Amalgamation with C40 Solex
Location: Salmon Arm, BC, Canada

Re: Special tool for rear brake rebuilds?

Post by 124ADDHE »

Thanks!
Regards,
Keith Cox
1973 124 Spider
1973 John Deere 500c backhoe
1987 Jaguar VDP
2013 passat tdi
2015 cherokee
User avatar
MrWampus
Posts: 207
Joined: Sat Sep 17, 2011 11:55 am
Your car is a: 1981 Spider
Location: Charlotte, NC

Re: Special tool for rear brake rebuilds?

Post by MrWampus »

WYspider, Love the special C-clamp you made for your brake caliper. I had to rebuild the calipers on my old 79 spider many years ago. I don't remember how I comperessed mine, but for some reason I get cold shivers whenever I think about doing brakework now.

Now that you have ground of the edges of that $5.00 clamp and engraved "Fiat" into it, you can sell it for $158.00.
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1981 Spider "The Mistress"
http://s1088.photobucket.com/albums/i329/mrwampus1/
"Because a 30-year-old sports car is cheaper than a 30-year-old blonde."
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