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  #1  
Old 11-19-2017, 06:22 PM
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Caliper O-Ring for ATE rear caliper for 1976 280C W114

So I got home Sat. night and I had a few boxes of goodies from Pelican Parts waiting for me. Rotors, caliper rebuild kits, pads.
While rebuilding my rear caliper and by the way one piston was frozen in there which was a huge PITA to get out; one of the O-Rings on the caliper (while split open) popped out, gone and never to be found.
Where can I get these? Can these be just regular O-Rings or are they specific?

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1976 280C
SLOWER DRIVERS KEEP TO THE RIGHT.
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  #2  
Old 11-20-2017, 12:26 PM
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As it turned out, Pelican Parts has the O-Rings. I called them and they helped me out. I'm getting 8 and replacing them on all corners.
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1976 280C
SLOWER DRIVERS KEEP TO THE RIGHT.
DRIVE RIGHT PASS LEFT
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  #3  
Old 11-20-2017, 03:28 PM
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Are you referring to the square o rings that seal the caliper halfs?
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W111 280SE 3.5 Coupe
Manual transmission

Past cars:
Porsche 914 2.0
'64 Jaguar XKE Roadster
'57 Oval Window VW
'71 Toyota Hilux Pickup Truck-Dad bought new
'73 Toyota Celica GT
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  #4  
Old 11-20-2017, 08:35 PM
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Quote:
Originally Posted by Tony H View Post
Are you referring to the square o rings that seal the caliper halfs?
Yes, round O-Rings with square edges. Yes, they seal both halves of the caliper where the fluid travels from one half to the other.
I ordered 8
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1976 280C
SLOWER DRIVERS KEEP TO THE RIGHT.
DRIVE RIGHT PASS LEFT
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  #5  
Old 11-21-2017, 05:21 PM
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Good to know. I know it is not recommended to split the halfs but it sure makes it easier to service.
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W111 280SE 3.5 Coupe
Manual transmission

Past cars:
Porsche 914 2.0
'64 Jaguar XKE Roadster
'57 Oval Window VW
'71 Toyota Hilux Pickup Truck-Dad bought new
'73 Toyota Celica GT
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  #6  
Old 11-22-2017, 09:08 AM
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Quote:
Originally Posted by Tony H View Post
Good to know. I know it is not recommended to split the halfs but it sure makes it easier to service.
Getting the pistons out in order to replace the inner O-Ring and also pressing the piston back after new O-Ring was in place was easier for me with the calilpers split.

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1976 280C
SLOWER DRIVERS KEEP TO THE RIGHT.
DRIVE RIGHT PASS LEFT
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