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The Miata Bushing MEGAthread: Heirarchy, DIY delrin dimensions, info and discussion

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The Miata Bushing MEGAthread: Heirarchy, DIY delrin dimensions, info and discussion

Old 02-07-2018, 05:54 PM
  #281  
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They'll act as thrust washers, I see no issue.
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Old 02-17-2018, 03:39 PM
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Default Removing delrin bushes

For Reasons, I need to swap my RUCA-I delrin bushes into a new arm. They are proving difficult to remove without damage. I have removed the grease nipples and the pin, but the bushes themselves are tight in the housing.

Any tips?

Thanks!

All good now. Took a deep breath, and a not-so-sharp chisel, added hammer, and worked the bush out. For those playing at home, even fully housed there is a gap between the two halves of a completed bushing. You only need to move the first half bushing out a few mm - enough to get a half decent angle on the gap from the other side of the bush, then get a blunt screwdriver and gently drive the bush out. Once one half is out, its mate comes easily.

Last edited by Gee Emm; 02-18-2018 at 02:41 AM. Reason: New information
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Old 02-18-2018, 09:34 AM
  #283  
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Yea i have a weirdly thin, bent, alignment punch bar that i try to get in the gap and once started, they come right out. Sounds like you figured out the method. Worst case scenario you burr one a little near the ID and file it out.
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Old 02-28-2018, 05:22 PM
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is Sadfab still around?? I sent them an email yesterday afternoon and still have not gotten a response.
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Old 02-28-2018, 05:47 PM
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They have a backlog of emails. It's race season.
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Old 02-28-2018, 05:50 PM
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Originally Posted by ctdrftna View Post
is Sadfab still around?? I sent them an email yesterday afternoon and still have not gotten a response.
Sadfab bushing division is a one man show (I just pretend to do things) and Sean is a busy guy.
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Old 03-05-2018, 11:31 PM
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Delrin bushing kit install instructions attached.

edit- ill add to OP
Attached Files
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Old 03-06-2018, 08:37 AM
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Originally Posted by hi_im_sean View Post
Delrin bushing kit install instructions attached.

edit- ill add to OP
Well done!
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Old 03-06-2018, 08:39 AM
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Guise is Sadfab still around? I sent Sean a text 3 minutes ago and he hasn't responded.
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Old 03-06-2018, 08:58 AM
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Originally Posted by concealer404 View Post
Guise is Sadfab still around? I sent Sean a text 3 minutes ago and he hasn't responded.
I ordered stuff from him a few weeks ago and no problems. Maybe email?
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Old 03-06-2018, 09:44 AM
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He ded
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Old 03-06-2018, 09:45 AM
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RIP Sean.
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Old 03-07-2018, 02:22 PM
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Heres a good write up from the guys at MostlyMiata that I meant to post a few months back.

https://sites.google.com/site/yourmi...in-bushing-kit
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Old 03-24-2018, 12:33 AM
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Sean, I sent you an email a few days ago about ordering a bronze retrofit kit.
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Old 03-24-2018, 10:10 AM
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Sean are you still making parts?
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Old 03-24-2018, 03:52 PM
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Sean is busy making bushings. We got your email I'll add you to the list.
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Old 03-25-2018, 01:55 AM
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I'm installing the bronze poly retrofit kit, and I could use some advice. I have the Paco adjustable RUCA's, and I can't see a good way to install grease fittings. It looks like my options are:

1) Notch out or remove the strap on the subframe that partially obscures the inner bushings
2) Don't add grease fittings to these locations

here's Sean's photo of an OE RUCA. You can see the steel strap that you need to need to make sure you clear on your setup at full droop:


here's a shot of a Paco RUCA. You can see how it's built, and how it sits in relation to the subframe strap:


here's my Paco RUCA striped to mark where the strap sits at full droop. You can see that I can't get on the bushing surround without getting under the area covered by the subframe strap:

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Old 03-25-2018, 09:56 AM
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You may be able to stick a 90 on top, cant quite tell if there's enough room. If not it looks like notching the strap may be the only way.
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Old 03-25-2018, 10:50 AM
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With a (very) few hours sleep and a fresh cuppa Joe, I see the answer: low pro zerks

https://www.speedwaymotors.com/Low-P...rks,43142.html

Last edited by wackbards; 03-25-2018 at 11:31 AM.
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Old 03-25-2018, 11:19 AM
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low profile 1/4"-28 5 pack: https://www.mcmaster.com/#10595k14/=1c4he9s
grease gun adapter: https://www.mcmaster.com/#2906k92/=1c4hgel

A 5 pack of the zerks is only $2.69, but the snap on adapter for your grease gun is $13.

***edit***
Ended up buying this right angled grease gun adapter: https://www.mcmaster.com/#catalog/2906K93
I think I'll put the low pro zerks on the top, and this grease nozzle should fit EZ PZ.

Last edited by wackbards; 03-25-2018 at 11:47 AM.
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