[TR] TR6 rear brake cylinder shims--question

[Tim Gaines]

That makes a lot of sense! Is that procedure widely known? I sure 
haven't come across it.
Thanks Ed.

Tim


------ Original Message ------
>From "EDWARD WOODS" <fogbro1 at comcast.net>
To "Tim Gaines" <mtgaines at presby.edu>; "Triumphs" 
<triumphs at autox.team.net>
Date 8/6/2026 8:36:08 PM
Subject Re: [TR] TR6 rear brake cylinder shims--question

>Tim,
>
>Well, you have them in the right position, but my order of assembly 
>differs. Position the wheel cylinder on the backing plate. Install the 
>top and bottom plates. Install the handbrake lever. Drive the middle 
>plate into place over the tabs of the bottom plates. Fit the rubber 
>dust cover. Girling brake grease eases things along.
>
>
>Ed
>>On 08/06/2026 3:39 PM EDT Tim Gaines <mtgaines at presby.edu> wrote:
>>
>>
>>I have recently finished installation of the RATCO cross member that 
>>serves as the rear diff support and the mounting plate for the lever 
>>shocks. The project was long and a bit tedious, but I am very happy 
>>with the result. However, when I was reassembling the hubs to the 
>>aluminum trailing arms I found that a couple of the six studs on each 
>>TA had stripped the holes or their own threads when the studs came out 
>>with the nyloc nuts. I decided to use the Patton-Machine TARK-KS guide 
>>kit for drilling and tapping the trailing arms for Keenserts. That 
>>went extremely well, and I now feel confident that the hubs (and 
>>wheels!) are securely mounted to the new studs that are in turn secure 
>>in the Keenserts.
>>
>>Today I thought I was going to simply adjust the brakes, so I got out 
>>my official shop manual to refresh my memory. Now I feel pretty 
>>foolish, so I am going to have to ask for help. The diagram of the 
>>brake cylinder shim sequence in the manual does not agree with the 
>>instructions. I am pretty sure that the instructions are right and my 
>>earlier installation based on the diagram and a Google AI query is 
>>wrong, but I would like some corroboration.
>>
>>The manual says:
>>1) The thin spring(y) shim with 2 tabs at the open end slides into the 
>>cylinder's groove first, from the front side (where the hand brake 
>>lever is), against the back of the backplate with the tabs pointing 
>>out.
>>2) The thicker flat locking shim slides in from the opposite direction 
>>until the tabs from the spring shim fit into the slots in the locking 
>>shim.
>>3) The shorter flat spacing shim slides in from the front on top of 
>>the other shims. Somehow I have misplaced one of these shims--another 
>>problem to deal with!
>>
>>Is that correct? I had reversed the first two shims.
>>
>>If anyone has an interest in or questions about the the RATCO 
>>installation or the Patton-Machine kit, I would be happy to provide 
>>details.
>>
>>Tim
>>
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