tyre pressures
Forum rules
By using this site, you agree to our rules. Please see: Terms of Use
By using this site, you agree to our rules. Please see: Terms of Use
tyre pressures
Hi,
The handbook for my Moggie 1000 states that the tyre pressure should be 26psi , I think, from memory. Was this due to the original tyres only being suitable for that pressure or was it suspension related? Am thinking harder tyre, more shocks to the suspension. My current tyres are very new [ bought car last June with them already fitted] and are of a higher pressure I`m sure. Could this be a problem?
Regards, Gary
The handbook for my Moggie 1000 states that the tyre pressure should be 26psi , I think, from memory. Was this due to the original tyres only being suitable for that pressure or was it suspension related? Am thinking harder tyre, more shocks to the suspension. My current tyres are very new [ bought car last June with them already fitted] and are of a higher pressure I`m sure. Could this be a problem?
Regards, Gary
- svenedin
- Minor Legend
- Posts: 1916
- Joined: Fri Aug 29, 2014 9:27 am
- Location: Surrey
- MMOC Member: Yes
Re: tyre pressures
The original tyres were crossplies. Most people use radials these days.
Stephen
Stephen
1969 1098cc Convertible “Xavier” which I have owned since 1989.
Stephen
Stephen
- geoberni
- Minor Legend
- Posts: 3600
- Joined: Fri Aug 04, 2017 11:19 am
- Location: North Leicestershire
- MMOC Member: Yes
Re: tyre pressures
I think people generally use around 28 with Radials.
But keep an eye on the tread wear as different makes will have an effect too.
What a lot of people forget about tyres is that the inflation pressure is whatever keeps the tyre, as fitted to that vehicle, in the correct shape for safe driving.
The Minor is a pretty light car, too high a pressure is simply going to reduce contact surface, wearing the centre of the tyre down and making it a more dangerous drive.
Some good info here about tyre safety in general:
https://www.tyresizecalculator.com/tyres/tyre-pressure
I have seen the question of tyre pressure come up on facebook and the stupidity of some people is still quite frightening.
I've seen it where some answers have been to use the pressure given on the tyre sidewall.
That's the Maximum Pressure, whatever the tyre is fitted to!
But keep an eye on the tread wear as different makes will have an effect too.
What a lot of people forget about tyres is that the inflation pressure is whatever keeps the tyre, as fitted to that vehicle, in the correct shape for safe driving.
The Minor is a pretty light car, too high a pressure is simply going to reduce contact surface, wearing the centre of the tyre down and making it a more dangerous drive.
Some good info here about tyre safety in general:
https://www.tyresizecalculator.com/tyres/tyre-pressure
I have seen the question of tyre pressure come up on facebook and the stupidity of some people is still quite frightening.
I've seen it where some answers have been to use the pressure given on the tyre sidewall.
That's the Maximum Pressure, whatever the tyre is fitted to!
Basil the 1955 series II
-
- Minor Legend
- Posts: 1186
- Joined: Mon Apr 23, 2007 2:32 pm
- Location: Dartmoor
- MMOC Member: No
Re: tyre pressures
You and me both - I also commented on that thread. It never ceases to amaze me how ignorant people state nonsense as though it's fact on social media.geoberni wrote: ↑Sun Mar 17, 2024 12:37 pm I
I have seen the question of tyre pressure come up on facebook and the stupidity of some people is still quite frightening.
I've seen it where some answers have been to use the pressure given on the tyre sidewall.
That's the Maximum Pressure, whatever the tyre is fitted to!
Agree that 28 psi ish is a good starting point for radials on a Minor - that's what I run mine at.
- svenedin
- Minor Legend
- Posts: 1916
- Joined: Fri Aug 29, 2014 9:27 am
- Location: Surrey
- MMOC Member: Yes
Re: tyre pressures
28 psi all round is what I use on my radials and it seems fine.
1969 1098cc Convertible “Xavier” which I have owned since 1989.
Stephen
Stephen
Re: tyre pressures
Explains those YouTube videos from garages showing customers cars with tires inflated to 100+ psi I guess.
[img]download/file.php?avatar=1401_1646150056.jpg[/img]
-
- Minor Legend
- Posts: 2539
- Joined: Tue Jan 29, 2013 10:32 pm
- Location: Kernow
- MMOC Member: Yes
Re: tyre pressures
I find 30psi all round is good. Anyone run on more than that?
-
- Minor Legend
- Posts: 2765
- Joined: Tue Nov 11, 2014 9:41 am
- MMOC Member: No
Re: tyre pressures
You shouldn't need to go much higher than the manufacturer recommended in the first place. Some experimentation is fine and different makes of tyres might run better at slightly different pressures but these are the recommended pressures copied from the original driver's handbook.
- Attachments
-
- tyre pressures.JPG (104.93 KiB) Viewed 488 times
- geoberni
- Minor Legend
- Posts: 3600
- Joined: Fri Aug 04, 2017 11:19 am
- Location: North Leicestershire
- MMOC Member: Yes
Re: tyre pressures
Interesting that it doesn't appear to require any variation in pressures for fully laden with Radial Tyres.ManyMinors wrote: ↑Sun Mar 17, 2024 10:00 pm You shouldn't need to go much higher than the manufacturer recommended in the first place. Some experimentation is fine and different makes of tyres might run better at slightly different pressures but these are the recommended pressures copied from the original driver's handbook.
I don't have Radial Tyres mentioned in my SII handbook (6th Ed) as it predates their arrival for general use.
Basil the 1955 series II
-
- Minor Addict
- Posts: 784
- Joined: Fri Sep 24, 2004 9:09 pm
- Location: Hurstbourne Tarrant, Andover, Hants.
- MMOC Member: Yes
Re: tyre pressures
I'm running on 25 psi all round on my 1963 1098cc Traveller which is equipped with 145R14 radials made by Camac and the wear seems even across each tyre.
Morris Minor, the car of the future. One day they will all look like this!
Re: tyre pressures
Thanks to everyone for their replies and advice.