I believe there are two styles of bracket, unless they have changed them recently. The original ones were two separate brackets, front and rear. There were some reports of these failing around where they bolt to the upright. A modification was done that added a small support rod to the front bracket. The second style (~2001) is a one-piece bracket that requires a u-shaped connector to bolt the rear bolt to. This has mainly had issues with cracking where the oval tube is welded to the mounting plate, although I've also had cracks where the flat bar, that the wing attaches to, is welded to the oval tube. When my second style bracket cracked and sent my arch flying, I got Quantum to supply a new bracket with the flat bars loose, so that I could attach them to the oval tube using a rubber compound. This has allowed some flex and removes the stress at this point. I've since found that the mounting plate on my new bracket is half the thickness of the original (unfortunately didn't notice at the time) and this has led to it flexing and cracking off the front mounting lug on the upright. I keep on meaning to get round to having the lug welded back on, but it is holding fine currently with a bolted adaptor that I made up.
All these issues have been with my nearside arch, although the offside arch brackets have got some traces of rust on them which may be the start of cracks. Need to clean off the paint and crack test them at some point. James. -- You received this message because you are subscribed to the Google Groups "Quantum Owners Group" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/quantumowners?hl=en IMPORTANT NOTE: All information presented herewith is provided on an "As Is" basis, without warranty or the implication thereof. Neither the Quantum Owners Club nor the individuals associated with the Quantum Owners Club or in the preparation of the above information shall have any liability to any person or entity with respect to liability, loss, or damage caused or alleged to be caused directly or indirectly by the instructions contained within this or related message(s).
