Koni Red adjustment, DIY fix?

[Porboynz]

I have a pair of 86-1638 Koni inserts that I bought years ago. They are stock unlike my existing inserts which were re-valved and shortened for track use. Now that the 911 is restored for Sunday excursions I would prefer a softer rebound. The stored Koni inserts both have the same problem, I can engage the adjuster on full compression easily enough but they just spin without reaching the usual full soft or firm stops. I can turn them clockwise and they do get firmer, counter clockwise and they get softer. My question is what's likely broken and can I easily disassemble and repair? It looks like I can pry back the crimps and I have a reasonable set of tools, any advice out there?

[Porboynz]

Any advice on pulling these Koni shock inserts apart?

[Dmitry at Pelican Parts]

Hello - take a look at the link below to an earlier thread where this is discussed. There are other threads on this topic as well, just google "porsche 911 Koni shock disassemble" Hope this helps you out.

http://forums.pelicanparts.com/porsche-911-technical-forum/633975-non-rebuildable-koni-rebuild.html

[jpnovak]

Yes, you can pry back the detents and unscrew the top caps. This will allow you to remove the insert guts. There is a plastic guide that holds a detent ball that should give you the "clicks" of adjustement. Some of the older Konis just had 2.5 turns from full hard to soft. There should be a stop after these turns.

You will have to replace the shock oil and most likely the top gland nut o-ring seal. I had to heat mine to get the top gland nut to release and this damaged the o-ring.