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  View original topic: I made some 40 stainless retaining plate shims. Have a look. Page: 1, 2, 3  Next
ChipWrecked Fri Aug 23, 2013 7:10 pm

I know right... good golly another shim thread. This is my second thread so take it easy man.

Yes, the retaining plate shims are necessary.
Yes, they are ridiculously expensive ($10-20 each range) - as they are not easily found in abundance. And yes, over the years, they often end up missing on many vehicles.

While I struggled to source a quad set myself (eventually found two at BD), I looked for options. Aftermarket options did not seem to exist - so I decided to have some machined out of 316L stainless steel. More on that later.

In the meantime; while installing remanufactured ATE calipers, I found the pistons were not properly set to 20 degrees in relation to the rotor. So I made a copy of the ATE caliper tool that I'd like to share here.

I made the following drawing. It can be enlarged to scale, printed, and traced onto heavy card stock and cut out. I made a crude one out of 24g steel.



Where exactly do I position the calipers? Well if you have old retaining plates you have a guide. Those that don't have plates may choose to use the following drawing.



And using the 20 degree caliper tool:


Now back to the shims:
As stated earlier, I was able to get two shims from BD. I used these as templates in creating a CAD drawing to have some professionally manufactured.



And here's the end product:




I installed my shims today, and glad to report they fit great, ensuring a correct piston position.

Hope this thread helps.

SGKent Fri Aug 23, 2013 7:41 pm

First - excellent work. That said I am the kinda guy who probably would have waited for the originals, new or used, but the work you did should be fine and just as functional as the originals. Thank you for sharing the diagrams. There may come a day when your way is the only way to get shims that work right.

busdaddy Fri Aug 23, 2013 7:50 pm

Knowing personally how much of a Biotch SS is to work with that's very impressive, nice work! Were laaaazzzzers involved?


Wasted youth Fri Aug 23, 2013 7:53 pm

Nice! I really like the tool. Hadn't thought of that.

Will you be selling the retaining plates?

ChipWrecked Fri Aug 23, 2013 8:08 pm

busdaddy wrote: Knowing personally how much of a Biotch SS is to work with that's very impressive, nice work! Were laaaazzzzers involved?



Laaaaaaazzzzzzers too easy...

I used a light saber and a stead hand.


Desertbusman Fri Aug 23, 2013 8:47 pm

That's cool. And they arn't going to rust.

It solves 1/2 of the overall problem. Now if you can change the minds of all the folks that think they arn't needed that would be the other major gain.

ChipWrecked Sat Aug 24, 2013 8:37 am

Wasted youth/adulthood wrote: Nice! I really like the tool. Hadn't thought of that.

Will you be selling the retaining plates?

Thank you, and yes, I will be selling my my extra ones - I'll list it in the classifieds today. I'm thinkin' $45 for a complete set shipped.

raygreenwood Sat Aug 24, 2013 12:17 pm

ChipWrecked wrote: Wasted youth/adulthood wrote: Nice! I really like the tool. Hadn't thought of that.

Will you be selling the retaining plates?

Thank you, and yes, I will be selling my my extra ones - I'll list it in the classifieds today. I'm thinkin' $45 for a complete set shipped.


Very nice! If they would fit my calipers on my 412...i would buy a set!

ChipWrecked Sat Aug 24, 2013 6:10 pm

raygreenwood wrote: ChipWrecked wrote: Wasted youth/adulthood wrote: Nice! I really like the tool. Hadn't thought of that.

Will you be selling the retaining plates?

Thank you, and yes, I will be selling my my extra ones - I'll list it in the classifieds today. I'm thinkin' $45 for a complete set shipped.


Very nice! If they would fit my calipers on my 412...i would buy a set!

I really don't know what other applications these may be used on. If you have an original plate to compare dimensions, my shims, and my type 2 original ones are:
Base is 3"
Height 2 3/4" (to top of alignment holes)

aerosurfer Fri Aug 30, 2013 2:36 pm

I bought a set and just got them installed today... just wanted to share some thoughts and observations! I've never seen the originals before as my bus came to me without them, so I have nothing to compare to. My brakes have only about 500 miles on them, so I did nothing but pull the pads and set the shims and put it all back together

Shipping was very quick!

They look just as the pics, no burrs or rough edges. 2 of them were not completely flat when layed on flat surface, but not kinked or badly warped. Could have been manufacturing or even US mail.

The indents did line up very well to the pistons and the plates fit nice and snug. He had marked at least 2 of the pistons with the orientation in marker which had largely rubbed off, but nothing a Bentley and common sense couldn't fix

The holes for the pins are a little smaller than those for the brake pads. Made the first pin a little difficult to make sure it was totally lined up, but the next 3 were expected as such and went together snug.

After a test drive, there was no vibration or unusual steering and my small persistent squeal is gone for now.

All in all a great purchase and happy to have good re-production parts from a local source.

ChipWrecked Sat Aug 31, 2013 11:56 am

Thanks for the feedback on the shims.

On two earlier sets that went out, I marked each shim either: FI, FO and RI, RO thinking this might save time in placing them. But alas it seem to have led to more confusion to the two that received them. So I acetoned the markings off of my remaining stock.

Maybe I should just make a diagram for peeps to save time. Your thoughts?

And yes, I purposely designed the guide holes to be snug to theoretically limit the potential of harmonic vibrations.
Wow, the second half of that sentence sounded like early Pink Floyd lyrics.

Anyway - glad to hear you're squeak free, that they fit well, and are functioning as designed!

Chip

ChipWrecked Tue May 20, 2014 5:42 pm

Just to update those that have been inquiring, I no longer have any remaining stainless plates. Sorry! :?

I might get another batch made, but no plans at present.

Keith Tue May 20, 2014 7:10 pm

ChipWrecked wrote: Just to update those that have been inquiring, I no longer have any remaining stainless plates. Sorry! :?

I might get another batch made, but no plans at present.

Shit, I totally forgot about these !!! Please make some more and let us know when you do.

If you have no intention of making more ever again can you post the CAD file so one of us can make another run ?

white74westy Wed Jul 23, 2014 9:55 am

Keith wrote: ChipWrecked wrote: Just to update those that have been inquiring, I no longer have any remaining stainless plates. Sorry! :?

I might get another batch made, but no plans at present.

Shit, I totally forgot about these !!! Please make some more and let us know when you do.

If you have no intention of making more ever again can you post the CAD file so one of us can make another run ?

Bump!!!

blackivory69 Thu Jul 24, 2014 10:01 pm

ChipWrecked wrote: Just to update those that have been inquiring, I no longer have any remaining stainless plates. Sorry! :?

I might get another batch made, but no plans at present.
I probably got the last set. :) Sorry, I forgot to thank you. They work/fit great! Thanks again.

ChipWrecked Sun Mar 15, 2015 5:04 pm

Well, as luck would have it, I bought another bus (72' Westy) last fall. Sure enough, when doing the front disc brakes, the OEM shims were brittle, rusted, and unusable. Did I have the foresight to keep at least one full set of my stainless shims for personal use? Short answer - no.

So, since I was happy with the shims I've been using in my 71', and need them for my 72', I've decided to make another run.

I'll can have some extras made if anyone is interested. It'll be about 6 weeks.

asiab3 Sun Mar 15, 2015 5:06 pm

Haha sometimes we all have to be a little too selfless :)

Let me know how much you'll sell a set for, I'll probably be in for one.

TomWesty Sun Mar 15, 2015 5:25 pm

What year busses do they fit? Asiab3, does Buddy have disc brakes?

asiab3 Sun Mar 15, 2015 5:33 pm

TomWesty wrote: Asiab3, does Buddy have disc brakes?

No, but I'm always working on something else for fun, and hoarding specialty parts is a small hobby of mine.

SGKent Sun Mar 15, 2015 6:15 pm

have you considered making the tool also. Sell a tool, and 2 pair of shims.

I'd buy.



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