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Re: Old tyres?
Posted: Mon Oct 11, 2010 2:15 am
by robbiesmith
I wouldn't risk old tyres if I were you. It's a good decision to change them and be safe. My MGB had old tyres which seemed in good condition but I changed them anyway for safety's sake. The rubber will deteriorate without necessarily showing any obvious signs. I would never fit cheap tyres or remoulds either for the same reason. It's your life and the lives of your family, friends and other road users potentially. (End of sermon)
I'm intrigued by the comments about tyre pressures.
What would you experts recommend?
The manual says 22psi front and 24 rear, is this not a good idea? They certainly look and feel a bit low at that pressure.

Re: Old tyres?
Posted: Mon Oct 11, 2010 10:18 am
by mike.perry
Pressures quoted in the handbook are for cross plys. Radials have much more flexible side walls and need higher pressures
Re: Old tyres?
Posted: Mon Oct 11, 2010 11:07 am
by robbiesmith
Pressures are quoted separately for cross-plies and radials in the handbook, Mike. These pressures are for radials in both the handbook and Haynes.

Re: Old tyres?
Posted: Mon Oct 11, 2010 1:08 pm
by PSL184
Never trust the HBOL (Haynes Book of Lies)

Re: Old tyres?
Posted: Mon Oct 11, 2010 5:01 pm
by beero
KJM, yes it is a code, look for the DOT mark, only on one sidewall, pre 2000 it ends with 3 digits, 059 is week 5 year 9 of that decade, post 2000 it ends with 4 digits so 0710 is week 7 of 2010.
Re: Old tyres?
Posted: Mon Oct 11, 2010 7:07 pm
by charlie_morris_minor
i have toyo's on mine and am very happy with the way it handles they seem to handle well in the rain as well as in the dry. I run 30psi all round
Re: Old tyres?
Posted: Mon Oct 11, 2010 7:34 pm
by d_harris
Are those 155s on Standard rims? I'm thinking of placing an order with bully for 4 tyres...
Re: Old tyres?
Posted: Mon Oct 11, 2010 7:36 pm
by charlie_morris_minor
yes they are the 155 on the standard rim
Re: Old tyres?
Posted: Mon Oct 11, 2010 7:38 pm
by d_harris
Car I'm picking up has borderline legal firestones on the front & Camacs on the back not a good combination I feel....

Re: Old tyres?
Posted: Mon Oct 11, 2010 7:41 pm
by charlie_morris_minor
dan if you want to come and take the moggy out for a spin to see what you think you are more than welcome ( provided we can sort the insurance )
Re: Old tyres?
Posted: Mon Oct 11, 2010 7:49 pm
by d_harris
I'm insured to drive anything anyway (currently, 3 times over!)
Re: Old tyres?
Posted: Tue Oct 12, 2010 9:27 am
by moggie-tom
My tyres never seem to hold their pressure, after a couple of weeks they'll start looking flat, time for new ones? Had the same problem on my last Moggie.
Re: Old tyres?
Posted: Tue Oct 12, 2010 12:52 pm
by d_harris
More likely that there is a slight weep of air from the rims. Get the tyres off, clean up and repaint the sealing edges and jobs a goodun
Re: Old tyres?
Posted: Thu Oct 14, 2010 12:28 am
by IaininTenbury
Some scary tyre pics:
First two, the same tyre, was on a car that had been standing in a lock up for a few years and presumably the failure helped by being in one position for a very long time. Even when its parked with the big flappy split downwards the tread is pulling itself apart as the structure breaks up... beware of tyres that have been stood for a long time I suppose. Oddly enough it still holds its pressure well and nothing was obvious on a short test drive (on private land!).
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[/frame][frame]This one I noticed on my daily driver some months back, only when it was parked with the wheels on lock and this split was outwards and upwards. It was one that I had a puncture with a week or two previous, that may have hastened its end as I drove a little way with it flat before I realised what the mushy feel was and found somewhere to safely pull in. Looked ok when the tyre co. repaired it though. Now running the car ona set of white 8 spokes with newish tyres on, as the others are getting low on tread anyway and I still need to decide what brand to go for on the original wheels.

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