Another coilover question thread, threaded collars for Koni / Bilstein, same size? |
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Another coilover question thread, threaded collars for Koni / Bilstein, same size? |
PlaysWithCars |
Jan 23 2011, 05:17 PM
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#1
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Senior Member Group: Members Posts: 523 Joined: 9-November 03 From: Southeast of Seattle Member No.: 1,323 Region Association: Pacific Northwest |
Sorry if this has been covered already, but all of the searching and reading I've done has only led to confusion.
I bought a set of new threaded collars as part of a package with new Koni sport shocks. The collars didn't fit as tight as I would have expected so I pulled out a spare set of Bilstein shocks to see it they fit them any better (I recalled reading that Koni and Bilstein required different sized collars and thought I may have gotten the wrong ones). Anyway, they fit the Bilsteins about the same. So, out came the calipers and the shock bodies are essentially the same diameter: Bilstein - 1.973" / Koni - 1.978". I also measured two other shock sets and got the same results. So, I'm concluding the shock bodies are essentially the same. (IMG:style_emoticons/default/confused24.gif) I found this post in the forum (http://www.914world.com/bbs2/index.php?sho...amp;hl=coilover) that talked about using an adapter from Coleman Racing and this one from JP where he used a plastic "shim" to get his fitting correctly (http://www.914world.com/bbs2/index.php?sho...amp;hl=coilover). Is this just nature of the beast that they don't fit tightly and need to have a adapter or shim installed? Is it the same story regardless of shock manufacturer? Any guidance would be appreciated. |
J P Stein |
Jan 23 2011, 06:06 PM
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#2
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Irrelevant old fart Group: Members Posts: 8,797 Joined: 30-December 02 From: Vancouver, WA Member No.: 45 Region Association: None |
[[b]quote name='plays with cars' date='Jan 23 2011, 03:17 PM' post='1421596']
I found this post in the forum (http://www.914world.com/bbs2/index.php?sho...amp;hl=coilover) that talked about using an adapter from Coleman Racing and this one from JP where he used a plastic "shim" to get his fitting correctly (http://www.914world.com/bbs2/index.php?sho...amp;hl=coilover). Is this just nature of the beast that they don't fit tightly and need to have a adapter or shim installed? Is it the same story regardless of shock manufacturer? Any guidance would be appreciated. [/quote] I don't know if the shim is *needed*, but I don't like stuff rattling around.....thus the shim stock. Without the shim, the collar can get offset to the spring clip keeper on the shock bottom & start pounding the collar out of shape. I can say that as installed it's held up well with no problems.....for 6-7 years of rough AX venues. Here's what I mean by rough. Attached image(s) |
PlaysWithCars |
Jan 26 2011, 10:15 PM
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#3
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Senior Member Group: Members Posts: 523 Joined: 9-November 03 From: Southeast of Seattle Member No.: 1,323 Region Association: Pacific Northwest |
WOW! Simply wow. Was that at PIR?
Back to the coil over question, where did you get the plastic material you used? |
J P Stein |
Jan 27 2011, 07:07 AM
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#4
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Irrelevant old fart Group: Members Posts: 8,797 Joined: 30-December 02 From: Vancouver, WA Member No.: 45 Region Association: None |
WOW! Simply wow. Was that at PIR? Back to the coil over question, where did you get the plastic material you used? I got the shim stock at a tool supply outfit up the street. It is commonly used in machine shops & comes in varoius thickness .002 to .05 or so. Cambell Hardware would probably a good spot in the Seattle area....if it still exists. That was 35 years back. Yes, PIR. An unforunate job of cone setting in the South Pits. |
campbellcj |
Jan 29 2011, 02:35 PM
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#5
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I can't Re Member Group: Members Posts: 4,542 Joined: 26-December 02 From: Agoura, CA Member No.: 21 Region Association: Southern California |
I had the same concern with the collars fitting a bit loosely, although I chose to not do anything about it (yet). Has not been a problem in practical usage thus far. Although I drive on relatively smooth tracks with no JUMPS like above!
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speed metal army |
Jan 30 2011, 02:03 PM
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#6
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Waiting for the rain to stop... Group: Members Posts: 1,068 Joined: 4-September 10 From: PNW Member No.: 12,137 Region Association: Canada |
I want brakes in the front like the vette has!lol (IMG:style_emoticons/default/biggrin.gif)
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J P Stein |
Jan 30 2011, 06:43 PM
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#7
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Irrelevant old fart Group: Members Posts: 8,797 Joined: 30-December 02 From: Vancouver, WA Member No.: 45 Region Association: None |
Attached image(s) |
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