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I made some 40 stainless retaining plate shims. Have a look.
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ChipWrecked
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PostPosted: Fri Aug 23, 2013 7:10 pm    Post subject: I made some 40 stainless retaining plate shims. Have a look. Reply with quote

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.

Image may have been reduced in size. Click image to view fullscreen.


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.

Image may have been reduced in size. Click image to view fullscreen.


And using the 20 degree caliper tool:
Image may have been reduced in size. Click image to view fullscreen.


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.

Image may have been reduced in size. Click image to view fullscreen.


And here's the end product:
Image may have been reduced in size. Click image to view fullscreen.


Image may have been reduced in size. Click image to view fullscreen.


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

Hope this thread helps.


Last edited by ChipWrecked on Sun Aug 25, 2013 5:49 pm; edited 2 times in total
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SGKent Premium Member
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PostPosted: Fri Aug 23, 2013 7:41 pm    Post subject: Reply with quote

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.
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busdaddy
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PostPosted: Fri Aug 23, 2013 7:50 pm    Post subject: Reply with quote

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

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Wasted youth
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PostPosted: Fri Aug 23, 2013 7:53 pm    Post subject: Reply with quote

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

Will you be selling the retaining plates?
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ChipWrecked
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PostPosted: Fri Aug 23, 2013 8:08 pm    Post subject: Reply with quote

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

Image may have been reduced in size. Click image to view fullscreen.


Laaaaaaazzzzzzers too easy...

I used a light saber and a stead hand.

Image may have been reduced in size. Click image to view fullscreen.
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Desertbusman
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PostPosted: Fri Aug 23, 2013 8:47 pm    Post subject: Reply with quote

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.
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ChipWrecked
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PostPosted: Sat Aug 24, 2013 8:37 am    Post subject: Reply with quote

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.
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raygreenwood
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PostPosted: Sat Aug 24, 2013 12:17 pm    Post subject: Reply with quote

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!
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ChipWrecked
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PostPosted: Sat Aug 24, 2013 6:10 pm    Post subject: Reply with quote

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)
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aerosurfer
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PostPosted: Fri Aug 30, 2013 2:36 pm    Post subject: Reply with quote

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.
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ChipWrecked
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PostPosted: Sat Aug 31, 2013 11:56 am    Post subject: Reply with quote

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
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ChipWrecked
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PostPosted: Tue May 20, 2014 5:42 pm    Post subject: Reply with quote

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

I might get another batch made, but no plans at present.
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Keith
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PostPosted: Tue May 20, 2014 7:10 pm    Post subject: Reply with quote

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

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 ?
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PostPosted: Wed Jul 23, 2014 9:55 am    Post subject: Reply with quote

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

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!!!
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PostPosted: Thu Jul 24, 2014 10:01 pm    Post subject: Reply with quote

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

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

I probably got the last set. Smile Sorry, I forgot to thank you. They work/fit great! Thanks again.
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ChipWrecked
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PostPosted: Sun Mar 15, 2015 5:04 pm    Post subject: Reply with quote

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.
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asiab3
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PostPosted: Sun Mar 15, 2015 5:06 pm    Post subject: Reply with quote

Haha sometimes we all have to be a little too selfless Smile

Let me know how much you'll sell a set for, I'll probably be in for one.
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PostPosted: Sun Mar 15, 2015 5:25 pm    Post subject: Reply with quote

What year busses do they fit? Asiab3, does Buddy have disc brakes?
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PostPosted: Sun Mar 15, 2015 5:33 pm    Post subject: Reply with quote

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.
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PostPosted: Sun Mar 15, 2015 6:15 pm    Post subject: Reply with quote

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

I'd buy.
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