[Fot] Caliper Rebuild

[Michael Porter]

On 8/27/2014 6:19 AM, EDWARD BARNARD wrote:
> Yes, they can be rebuilt. The "O" rings are available from Moss for a small
> amount...pick-up a few. They are a weird, square cross sectional ring. The
> reason Moss and the shop manual says they shouldn't be opened is because there
> doesn't appear to be any recorded torque for the four bolts. Use good practice
> in torqueing these...I don't remember what diameter they are but torque them
> to the appropriate spec for that diameter bolt.
> -Ed-
>
>
>

If those o-rings aren't available, round ones would probably do (the 
originals are likely EPDM or SBR), but their cross-sectional area would 
have to be calculated from the originals, to properly fill the land, 
with a little extra to provide for adequate compression to seal 
properly.  The torques have to be in the archives somewhere, because 
this topic has come up at least a couple of times before, albeit quite a 
while ago.  Don't quote me (I could be having a senior moment), but the 
figures that stick in my mind are 40 lb-ft for the smaller bolt and 66 
lb-ft for the larger ones.


Cheers.

-- 


Michael Porter
Roswell, NM


Never let anyone drive you crazy when you know it's within walking distance....