15 replies to this topic

[martinroger]

Right, for some reason I cannot directly create a guide post. So please, if this is deemed good enough, mods, move this in the guides section ?

 

I recently undertook the complete strip-down, cleaning, powder-coating and rebuild of a set of rear brakes. I used the SELOC procedure that our Lotus brethen use for the S2. I found it lacked a little bit in the pictures department, and that sometimes the instructions were a bit too direct ("How to strip the caliper down ? Just remove the bits in it").

 

I made a guide in Google Docs (this way you can comment and I can update it), and album in Google Photos (not sponsored by Google) and for the IT-illiterate, I also made a PDF in case... No offense !

 

The guide in Google Docs

The picture album

The PDF version

 

Any questions welcome !

 

EDIT : same stuff is in the pipeline for front brakes stripdown, and front and rear brakes rebuild.

Edited by martinroger, 24 September 2020 - 08:39 PM.

[EnnZett]

Compliment and thanks for a good and helpful job

[FLD]

YESSSSS!  Top job.

[furtive]

Looks good. I've added a "suggestion" to correct a word that I think is wrong

[FLD]

The internal threaded rod is handed to the caliper.  For those stupid enough to do both sides at the same time, pulling parts out of cleaner and getting that awww sh*t moment a pic linking caliper and rod would be good.  Obviously I would never do such a thing!

[martinroger]

It absolutely didn't happen to me too....

[hairy]

Thank you for a great guide!

[martinroger]

Right, all updated thanks to the contributions about the handedness (is that even a word ?) of the threaded rod system. Links stay the same, internet magic !

[OneYet]

I chuckled while reading and are now hoping that my garagequeen does not force to do this, ever. 

[martinf]

That's a very nicely written guide, fantastic pics and annotations, well done that man.

[martinroger]

You're welcome guys!

[stevieturbo]

old thread, but if just the main outer seal needs replaced, does the piston need removed ? Or can the seal be replaced with the piston in-situ ?

[Lee37vernon]

I read someone said they've done it without strip down but I couldn't manage it on mine

[stevieturbo]

I read someone said they've done it without strip down but I couldn't manage it on mine

 

Thanks

 

Hard to tell in the photos, as detailed as they are. But it does look like he's installing the seal just prior to the piston.

 

One of mine is ripped to shreds, but it can stay like that for a while if the piston has to come out.

[martinroger]

 

I read someone said they've done it without strip down but I couldn't manage it on mine

 

Thanks

 

Hard to tell in the photos, as detailed as they are. But it does look like he's installing the seal just prior to the piston.

 

One of mine is ripped to shreds, but it can stay like that for a while if the piston has to come out.

 

You mean the dust boot ? That might theoretically be doable but will be a major PITA as they like to jump out, and overextending the piston all the way out may disloge the actual seal and or damage the compression ring and the screw shaft.

On the pictures you may realize I varied a little bit the re-assembly technique for the second piston, but in both cases I put the seal in the caliper first, and used liberal brake fluid to help it let the piston slide in without awkwardly popping the circlip and restarting it all.

On my original calipers my dust boots were also caked and pierced, but they were working OK.

 

I might revisit this guide soon with the disassembly, as I have two other calipers to refurb !

[Lee37vernon]

Yes, the dust boot. In the end I just slid it over for half measure. They work fine as is and the fronts have no dust cover.. I'll leave it for the rebuild guys when eventually they need it