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Roger V
Firing on two.
Joined: March 21st, 2013, 12:04 am
Posts: 1581
Location: Exeter, Devon
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 Re: tyres Something else to consider, is whether the tyre has warmed up when you test it. I was looking on the internet for tyre pressures for my motorbike as it had non standard tyres fitted. I stumbled across a forum where two chaps were discussing the subject and one was saying the correct pressure was when the increase of warm versus cold was a specific %. On another site regarding caravans, the advice was the difference between warm versus cold should be 6 psi. And, does anyone know if the standard recommended psi is at warm or cold? http://www.gnschassis.com.au/tyre-pressure-calculator/
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If you can't fix it with a hammer, it's probably electrical (or, an electric fuel pump!) ....
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| December 24th, 2018, 12:56 am |
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chevrons2
Firing on two.
Joined: April 9th, 2010, 12:21 am
Posts: 464
Location: West Sussex
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Re: tyres samfieldhouse wrote: Well yes, but there's nothing 'official' for them. Apart from maybe Mehari because I think they had them from the factory? AK and Ami had 135 from the factory.
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| December 24th, 2018, 1:41 am |
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Derek
Firing on two.
Joined: April 20th, 2017, 10:55 pm
Posts: 107
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Re: tyres
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| December 24th, 2018, 8:00 am |
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vitor
Firing on two.
Joined: February 10th, 2009, 10:12 pm
Posts: 159
Location: viseu - PT
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Re: tyres Derek, thanks for the articles.
Although we all know we must check air pressure periodically, this article shows us why that is so important.
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| December 24th, 2018, 12:23 pm |
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Roger V
Firing on two.
Joined: March 21st, 2013, 12:04 am
Posts: 1581
Location: Exeter, Devon
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Re: tyres vitor
Could be why there are different pressures on front and back. Guessing the front tyres work harder and get hotter which increases the tyre pressure and also compensates for the engine weight.
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If you can't fix it with a hammer, it's probably electrical (or, an electric fuel pump!) ....
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| December 24th, 2018, 4:17 pm |
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tfaerch
Firing on two.
Joined: February 9th, 2009, 11:27 am
Posts: 181
Location: Copenhagen, Denmark
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Re: tyres vitor wrote: Driving at such low pressure will increase fuel consumption and probably damage the tyres. I never understood why this Revue suggests these numbers...  My user manual says 1.4 front, 2.0 at the back
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| December 26th, 2018, 8:28 pm |
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samfieldhouse
Firing on two.
Joined: February 11th, 2009, 12:32 am
Posts: 3324
Location: Chichester, West Sussex
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Re: tyres What are these 'bars' of which you speak? 
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| December 26th, 2018, 8:54 pm |
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Roger V
Firing on two.
Joined: March 21st, 2013, 12:04 am
Posts: 1581
Location: Exeter, Devon
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Re: tyres Prefer psi, but dislike bars.
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If you can't fix it with a hammer, it's probably electrical (or, an electric fuel pump!) ....
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| December 26th, 2018, 9:39 pm |
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vitor
Firing on two.
Joined: February 10th, 2009, 10:12 pm
Posts: 159
Location: viseu - PT
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Re: tyres Even considering the warming of the front tyres due to rolling, traction and steering I guess the 20 front pressure won't ever reach 30psi.
There must be some reason. I don't think Citroen engineers were incompetent...
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| December 26th, 2018, 11:37 pm |
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ken
Agony Aunt - You have a car problem? Speak to Ken
Joined: March 6th, 2009, 1:40 am
Posts: 3675
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Re: tyres Vitor, it seems to me that you haven't taken into account the diagonal transfer of weight which takes place during cornering. Depending how 'enthusiastic' that manouevre is, the amount of load transferred can be as much as 100%, which means that the most heavily laden tyre on the car will be the one on the front axle, at the outside of the curve... vitor wrote: Even considering the warming of the front tyres due to rolling, traction and steering I guess the 20 front pressure won't ever reach 30psi.
There must be some reason. I don't think Citroen engineers were incompetent...
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| December 27th, 2018, 2:43 am |
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