Thanks Bill, some great work there and far beyond my capabilities and equipment. I'll do some measurements and calcs. One thing I may do (to avoid re-doing the GRP on the boot floor) is move the bolt hole in the PRod bracket by just ovalising it and welding to the edge and/ or (maybe better) Just welding a thick washer on both sides in the correct position to move the mounting hole 7.5mm (ie get it central). I may still put some gaffer tape around the LH plastic cover to try to ascertain clearance prior to doing this....... It may be better to just move ,say, 5mm to give a little more clearance to the LHS to allow for PRod movement. Are you making the (long) trip down to Stoneleigh? Martin ----- Original Message ----- From: 'Bill Allison' via Quantum Owners Group To: [email protected] Sent: Thursday, April 20, 2017 8:57 AM Subject: Re: [Quantum Owners] Fatter tyres??
Martin If you do trig calculations you will see that the axle doesn't move all that much horizontally from bump to droop. You should be fine with the axle centred when the panhard rod is horizontal. I found that with 7" wheels with only just enough offset, the limiting feature was the inside of the tyre touching the inner wing near the top (actually the heads of the rear seat hinge bolts). You might find near the bottom of this page interesting. Best regards Bill Bill Allison Borders Group of Advanced Motorists Vice Chair Secretary (Cars) Chief Observer (Cars) 07702 739474 01750 22550 (before 21:00 please) www.bordersiam.org.uk and www.bordersiam.org.uk/ydi www.iamroadsmart.com The contents of this message, and any attachments, may include information that is private and confidential and should not be read by persons other than the intended addressee(s). IAM RoadSmart nor the sender accepts any responsibility for viruses and it is your responsibility to check the email and any attachments. If you have received this email in error, please inform the sender and delete the message from your computer. IAM RoadSmart is a trading name. IAM RoadSmart is a trademark. Charity number: 249002 (England and Wales) SC041201 (Scotland). Registered Address: 1 Albany Place, Hyde Way, Welwyn Garden City AL7 3BT. ------------------------------------------------------------------------------ From: Susan and Martin Scott <[email protected]> To: [email protected] Sent: Wednesday, 19 April 2017, 23:15 Subject: Re: [Quantum Owners] Fatter tyres?? The panhard rod mount was drilled (accurately) in the position marked by Quantum. I've not removed it (yet) to examine for ovalisation, but certainly the holes could be treated as you suggest, and this will avoid purchasing an adjustable panhard rod. I'm not averse to purchasing one, but If an adjustable one is larger diameter than standard this is likely to give clearance issues with the towbar. As the PR is horizontal at the resting ride height and is bolted to the RH side of the bodyshell, any movement of the axle up or down will tend to pull the body towards the left and thus make more clearance for the tyre on the RH side (I appreciate this is a simplied scenario). Measured as 5mm clearance between tyre and trailing arm for RH tyre, and 20mm clearance for LH tyre, If I move the PR to put the clearance equal I supect I'd then get clearance issues on the LH side. The advantage of an adjustable PR is there if I go that route. Ideally I really need spacers or different offset wheels! Thanks for info. Martin ----- Original Message ----- From: 'Bill Allison' via Quantum Owners Group To: [email protected] Sent: Tuesday, April 18, 2017 7:39 AM Subject: Re: [Quantum Owners] Fatter tyres?? Hi Martin If the panhard rod is not bent then unequal n/s and o/d clearances can only be due to grossly perished panhard rod bushes (very unlikely) or the car has been driven with the panhard rod mount not securely bolted to the boot floor thereby elongating the holes in the floor, or inaccurate drilling of the boot floor. I suggest you undo the mount then with the rear of the car at normal ride height re-drill or elongate the holes as necessary. When you bolt it back up use body filler to remove the resulting gaps. When the filler has set, unbolt the mount and reattach it with windscreen or body adhesive. You then shouldn't need spacers but for info most insurance companies are ok with thin (3 or 4mm) spacers if required. Best regards Bill Bill Allison Borders Group of Advanced Motorists Vice Chair Secretary (Cars) Chief Observer (Cars) 07702 739474 01750 22550 (before 21:00 please) www.bordersiam.org.uk and www.bordersiam.org.uk/ydi www.iamroadsmart.com The contents of this message, and any attachments, may include information that is private and confidential and should not be read by persons other than the intended addressee(s). IAM RoadSmart nor the sender accepts any responsibility for viruses and it is your responsibility to check the email and any attachments. If you have received this email in error, please inform the sender and delete the message from your computer. IAM RoadSmart is a trading name. IAM RoadSmart is a trademark. Charity number: 249002 (England and Wales) SC041201 (Scotland). Registered Address: 1 Albany Place, Hyde Way, Welwyn Garden City AL7 3BT. ---------------------------------------------------------------------------- From: Susan and Martin Scott <[email protected]> To: [email protected] Sent: Monday, 17 April 2017, 16:47 Subject: [Quantum Owners] Fatter tyres?? I'm hoping someone can shed some light........ Giving the Q saloon a once-over prior to Stoneleigh, and I noticed the rear offside tyre has scraped the plastic sleeve on the damper. I didn't have the problem with the previous tyres which were the same size (185/55x14) The wheels are as before (43.5 inset). I can only think the tyre shape (Dunlop) is a bit different to the previous tyres (Firestone) - the new ones do measure 185mm across. I've also tried switching wheels to different corners just n case of some crazy offset difference in manufacture. Measuring the clearance to the rear trailing arms is 5mm on the offside and 20mm on the nearside, so far from ideal. The only ways I can see of changing this are 1) different tyres, but a lottery as to result. 2) spacers (I have an aversion to them, as do insurance. 3) change the wheels (maybe Peugeot for less inset?) or 4) Fit an adjustable panhard rod to attempt to "even it up" which may give a problem on the nearside. As far as I can see it the close clearance in itself is an issue, not helped by the poor design (panhard rod) which moves the axle laterally when the suspension compresses. With the car on level ground the panhard rod is horizontal, so any movement (up or down) will have the effect of moving the axle/RH wheel to the offside of the car, thus improving the current situation, but clearly bush compliance/stack up of movement has caused the tyre to touch the plastic shield. Has anyone else got a clearance issue on rear tyres on a saloon? -- -- 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). --- You received this message because you are subscribed to the Google Groups "Quantum Owners Group" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout. No virus found in this message. 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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). --- You received this message because you are subscribed to the Google Groups "Quantum Owners Group" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout. -- -- 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). --- You received this message because you are subscribed to the Google Groups "Quantum Owners Group" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout. No virus found in this message. 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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). --- You received this message because you are subscribed to the Google Groups "Quantum Owners Group" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout. -- -- 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). --- You received this message because you are subscribed to the Google Groups "Quantum Owners Group" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
