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Rear shock install: how do I get the metal cap on Koni Yellows?

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Old 06-10-2011 | 04:19 PM
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dizzy snake pilot
 
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Rear shock install: how do I get the metal cap on Koni Yellows?

Doing an original shock replacement with Koni Yellows.

The stock rear shocks have a metal cap that fits down over the rod and seats on the shock body. It's a press fit.

I assume I need to transfer this to my new Koni Yellows, but the shock body is a little larger, so I'm not sure how to do it without damaging the shock or machining the cap.

Tips? Do you use a different part? Thanks!
Old 06-10-2011 | 04:25 PM
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yep you gotta drill it a little bigger
Old 06-10-2011 | 04:36 PM
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dizzy snake pilot
 
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The cap fits over the rod no problem- the issue is the sides of the cap are too small for the body of the Koni. I suppose I will have to grind out the insides of it.

Surprised no one else has run into this as it's problematic even with an angle grinder. Hand filing that will take hours.
Old 06-10-2011 | 04:52 PM
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What is the part number on your new Konis?
Old 06-10-2011 | 04:57 PM
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dizzy snake pilot
 
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Here's a pic of the cap:

http://thevenom.net/rx8/metalcapkoni.jpg

The red arrow points to the cap. My problem is the inner size of that metal cap is too small to fit around the yellow koni shock body. (It's a bit wider than the stock shock)

I resorted to grasping the cap with vise grips and beating with a hammer to bend the indents out, but I can't get enough to pound the cap on the koni shock body.

What am I missing? Thanks!
Old 06-10-2011 | 05:01 PM
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dizzy snake pilot
 
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Part number looks like "8240 1227 SPORT" and underneath it says "24-2010" then "Adjustable"
Old 06-10-2011 | 05:28 PM
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Are both sides like this? Maybe Koni put the wrong cap on the strut? Or is your metal tube bent?
Old 06-10-2011 | 06:52 PM
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I have an '06 and my rear pieces are plastic. They're part of the stock shock. you don't need them on the Koni's.
Old 06-10-2011 | 07:28 PM
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I'd have decided that (leave them out) except the install instructions depict this part going on the new shock. It's what the bump stop contacts, and the stock suspension rx8 hits the bump stops constantly in even hard street driving.

Anyway, I persuaded it with a dremel and BFH. Thanks all.
Old 06-12-2011 | 08:20 PM
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Can you take a picture of what isn't fitting?
I didn't modify anything with my rear koni yellows.
Old 06-12-2011 | 11:11 PM
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dizzy snake pilot
 
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Reply #5 has a pic. After conferring with other RX8 owners here with the same shocks, I removed the cap.
Old 06-21-2011 | 01:06 AM
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that part is not required on the Koni and it serves no purpose on it as they are intended for the bumpstop to hit the top without issue
Old 06-21-2011 | 01:29 AM
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dizzy snake pilot
 
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Thanks! Car is 100% better with new shocks!
Old 06-21-2011 | 07:09 AM
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What shocks did you change to?
Old 06-21-2011 | 07:18 AM
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Did you miss the entirety of this thread??? He went from stock shocks to koni yellows
Old 06-21-2011 | 11:14 PM
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the factory shocks are not very good on the RX8 and the yellow Konis are the best choice for performance
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