rear knuckle upper spherical discussion
Thread Starter
Joined: Sep 2012
Posts: 4,560
Total Cats: 1,143
From: your mom's house phoenix, AZ
Sorry for late response.
I forgot, until just yesterday aidan, that the grommets I used out of the HF assortment had an ID of like 0.720" or something. I used 0.750" diameter spacers on my car because its what I had laying around at the time. You and everyone else who got a kit, except leafy, has spacers with a diameter of 0.830" +0/-0.005". So those grommets will be a very tight fit, or may split. You may have to "drill them out" or find the next size up grommet.
When I first made these, I took it for granted that there would be an off the shelf, plentiful o-ring that will work. As it turns out, thick cross section small diameter o rings are hard to find and I have yet to find a suitable o ring seal.
But I did find these, which I think will work great and last a while
https://www.miataturbo.net/race-prep...2/#post1199916
If you want to be all MacGyver, a small length of say 1/4" diameter rope, soaked in grease and just coiled up in the bore around the spacer would work great. Once its all assembled the control arm ears will keep it all in place.
I forgot, until just yesterday aidan, that the grommets I used out of the HF assortment had an ID of like 0.720" or something. I used 0.750" diameter spacers on my car because its what I had laying around at the time. You and everyone else who got a kit, except leafy, has spacers with a diameter of 0.830" +0/-0.005". So those grommets will be a very tight fit, or may split. You may have to "drill them out" or find the next size up grommet.
When I first made these, I took it for granted that there would be an off the shelf, plentiful o-ring that will work. As it turns out, thick cross section small diameter o rings are hard to find and I have yet to find a suitable o ring seal.
But I did find these, which I think will work great and last a while
https://www.miataturbo.net/race-prep...2/#post1199916
If you want to be all MacGyver, a small length of say 1/4" diameter rope, soaked in grease and just coiled up in the bore around the spacer would work great. Once its all assembled the control arm ears will keep it all in place.
Thread Starter
Joined: Sep 2012
Posts: 4,560
Total Cats: 1,143
From: your mom's house phoenix, AZ
Also, im getting some decent interest in these again. I think we might do another group buy. If I get a list going ill start making it happen after the new year. Ill nail down a price when I know how many are committed, but like last time it'll most likely be between $80-100 per kit.
tentative peoples
1. Mobius
2. Dunning Kruger Affect
3. Yank
4. Alternative
5.
6.
7.
8.
9.
10.
If you want a set, just add yourself to the list, no need to PM me, unless you want to of course.
tentative peoples
1. Mobius
2. Dunning Kruger Affect
3. Yank
4. Alternative
5.
6.
7.
8.
9.
10.
If you want a set, just add yourself to the list, no need to PM me, unless you want to of course.
Last edited by hi_im_sean; Dec 25, 2015 at 11:18 AM.
Thread Starter
Joined: Sep 2012
Posts: 4,560
Total Cats: 1,143
From: your mom's house phoenix, AZ
I'll try some of these and push them deep towards the bearing
http://www.mcmaster.com/#ring-seals/=10edhjh
http://www.mcmaster.com/#ring-seals/=10edhjh
Thread Starter
Joined: Sep 2012
Posts: 4,560
Total Cats: 1,143
From: your mom's house phoenix, AZ
I'll try some of these and push them deep towards the bearing
http://www.mcmaster.com/#ring-seals/=10edhjh
http://www.mcmaster.com/#ring-seals/=10edhjh
Thread Starter
Joined: Sep 2012
Posts: 4,560
Total Cats: 1,143
From: your mom's house phoenix, AZ
tentative peoples
1. Mobius
2. Dunning Kruger Affect
3. Yank
4. Alternative
5. Onetwo
6. VoBoy
7. afm
8. k24madness
9. greddygalant
10.
Ill start getting some quotes this week or next.
1. Mobius
2. Dunning Kruger Affect
3. Yank
4. Alternative
5. Onetwo
6. VoBoy
7. afm
8. k24madness
9. greddygalant
10.
Ill start getting some quotes this week or next.
Thread Starter
Joined: Sep 2012
Posts: 4,560
Total Cats: 1,143
From: your mom's house phoenix, AZ
Also, please make sure you let em know if you have rear upper control arms with camber bolts in the knuckle. Your spacers will be different.






