StewartG Posted March 28, 2004 Share Posted March 28, 2004 Just out this morning went over a bump and the rear suspension collapsed. Turns out, the passenger side bolt securing the bottom of the shock to the de dion tube had sheared Managed to limp home, about 20 miles, on three wheels. Of course the rest of the bolt, brocken off flush, cannot be persuaded out of the threaded bush. I can envisage two remedies. 1) Buy a new de dion tube. 2) Use the hole through the middle of the de dion tube with a longer bolt and adjust the platforms to correct for the extra ride height. Has anyone done this, will it work or are there problems? The only difference I can see is that the shox will have less compression travel Link to comment Share on other sites More sharing options...
F355GTS Posted March 28, 2004 Share Posted March 28, 2004 Stewart Mine are through the tube, can't see any reason why you can't do this, I've read on here before that the lower mount is a point of failure although the whole thing comes adrift If you decide to re use the old one I'm sure a local engineering company can get the bit out and re tap the thread for you for a few quid Mark Link to comment Share on other sites More sharing options...
Graham Perry Posted March 28, 2004 Share Posted March 28, 2004 I suspect you really need slightly shorter dampers and springs, but if you have lots of threads left on your dampers it may be possible to shorten them. I would be careful to thoughly check the tube where the original mounting bush attaches itself in case there is damage there. All the previous failures I have heard of were where the bush failed and has ripped a lump out of the tube turning it into scrap. Its the first time I have heard of the bolt failing. It might be a good idea to check if the same bolt on the other side is a high tenstile one and those through the top mounting as well. Link to comment Share on other sites More sharing options...
Peter Carmichael Posted March 28, 2004 Share Posted March 28, 2004 You need a damper with a shorter open length. Link to comment Share on other sites More sharing options...
StewartG Posted March 28, 2004 Author Share Posted March 28, 2004 F355GTS, did you get the through the tube bolts from CC? Link to comment Share on other sites More sharing options...
Rob Walker Posted March 28, 2004 Share Posted March 28, 2004 The latest tube is made from thicker material and has gussets around the damper mounts. Much stronger. Rob Link to comment Share on other sites More sharing options...
Ed White Posted February 18 Share Posted February 18 Does anyone offhand know the length of these bolts please. 5/16 unf x ?? Cheers Ed Link to comment Share on other sites More sharing options...
SM25T Posted February 18 Share Posted February 18 Way bigger diameter than 5/16" !! Link to comment Share on other sites More sharing options...
Member Jonathan Kay Posted February 18 Member Share Posted February 18 1 hour ago, Ed White said: Does anyone offhand know the length of these bolts please. 5/16 unf x ?? Is it in the Bolt List or Fastener Packs? If not please let us know and I'll check some Assembly Guides. Jonathan Link to comment Share on other sites More sharing options...
ECR Posted February 18 Share Posted February 18 I/2” unf I think… Link to comment Share on other sites More sharing options...
Support Team Shaun_E Posted February 19 Support Team Share Posted February 19 Top one is 11" (x 1/2" UNF) according to my bolt list but I don't have the details for the bottom one . Link to comment Share on other sites More sharing options...
John Vine Posted February 19 Share Posted February 19 17 hours ago, Ed White said: Does anyone offhand know the length of these bolts please. 5/16 unf x ?? Cheers Ed 1/2" x 2.1/2" UNF (strange that CC should show as OOS?). (Note: 1/2" not 5/16") JV Link to comment Share on other sites More sharing options...
Ed White Posted February 19 Share Posted February 19 Ta Link to comment Share on other sites More sharing options...
Bob L Posted February 20 Share Posted February 20 I had the same problem several years back. Bolt sheared flush with the tube. Asked the same questions as you have and in the end purchased a new tube as the modern version is stronger and trying to get the old bolt (remains out) was proving more trouble than it was worth. Link to comment Share on other sites More sharing options...
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