What's worse, over inflation or under inflation in tyres?

Discussion in 'Motorhome Chat' started by Welsh girl, Nov 10, 2015.

  1. Welsh girl

    Welsh girl Funster Life Member

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    I'm looking at ours and have said a few times, Terry they look as if they're under inflated! !
    Will he pull into a garage and get them sorted, no, so please let's have some horror stories to tell him as he doesn't come on this forum.
    Hopefully he'll get the message.
    We have new tyres, put on in May during the MOT.
     
  2. icantremember

    icantremember Funster

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    Both!
     
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  3. maison

    maison Funster

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    When we picked up our new M/H the ride was incredibly harsh, teeth rattlingly so.

    On checking the pressures with the hand book they were a bit high so we reduced them to the handbook level. That helped a bit.

    Then, on this Forum, a member posted Continental Tyres advised pressures for specific axle weights. I weighed ours, in full touring trim, and found them still way too high.

    On reducing them to the recommended pressures the M/H is now a pleasure to drive.
     
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  4. scotjimland

    scotjimland Funster Life Member

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    If not checked since May, in all probability they are low..

    Tell him that under inflated tyres increases fuel consumption.. that should get him moving.. ;)
     
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  5. Tincataylor

    Tincataylor Funster

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    Why not check them yourself and strike a blow for women's lib..............;););)
     
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  6. Larrynwin

    Larrynwin Funster

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    Buy him a little compressor from Machine Mart for Christmas then he can check them at home.
    Far cheaper than a ruined set of tyres or worse still a high speed blowout.:Eeek:
     
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  7. Anthea M

    Anthea M Funster

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    Burnt my bra in the 70s for women's lib... Now got to wait until 67 for pension AGghhhh so will let OH do tyre checks!
     
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  8. funflair

    funflair Funster Life Member

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    Under inflated will overheat and not handle as it should, over inflated will knock your fillings out and not handle as it should.

    Get em right.
     
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  9. bartiny

    bartiny

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    Under inflation = overheating, likely blow out, uneven tyre wear on outer edges.

    Over inflation = Harsh ride, possible blow out, uneven tyre wear in centre of tyre.

    IMO.
     
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  10. Lenny HB

    Lenny HB Funster

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    Waste of time getting him to pull into a garage as the tyres will be hot and the pressure will be higher than when cold. If you have been driving the van you should leave it for at least ½ hour before checking pressure. If you set them to the right pressure when hot they will be under inflated.
     
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  11. Tea Bag

    Tea Bag Funster

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    Hi.
    If "Under inflated" means.....FLAT LOL. Blowing them up WILL get him moving... Result!

    Good work Jim....... "Beam me up Scottie !" LOL.
    Tea Bag
     
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  12. Doctor Dave

    Doctor Dave Funster

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    Buy him a TyrePal for Christmas - he will need to check the tyres when fitting and then will get a warning if under-inflated or over-heated.

    Currently a special offer for Funsters.

    Dave
     
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  13. Jaws

    Jaws Funster Life Member

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    Under inflation .. excessive heat and wall damage
    Over inflation.. Harsh ride, poor grip, prone to damage and punctures
     
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  14. Violet1

    Violet1

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    Under inflation will cause wall damage, usually on the inner wall of the tyre. Having had new tyres in May if left you will be buying more at next mot depending on mileage. Had similar problems with otherhalf's skoda wouldn't check tyres and left to me when borrowed infrequently, two tyres later sorted problem, bent alloy wheel and valve replacement
     
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  15. Stealaway

    Stealaway Funster

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    Its odd, but when you do eventually check them they always seem to be lower and never higher:swear2:

    Its better to have your own pressure gauge as a reliable standard. Garage gauges can be way out.
     
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  16. campa cola

    campa cola Funster

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    Never under inflation.....my experience of 2 vans is the Elddis liked mid to low end of the recommended tyre pressures. Otherwise at the top end of the pressure range it would be a harsh ride and the whole van would rattle.

    My Carado was supplied with lowish air pressures which caused a slight barrel roll, however I have pumped the tyres up to the maximum allowed and that has made a big difference to handling....sweet as a nut! And being a quality Teutonic build no rattles either. So I guess it depends on the vehicle, and the person driving seems very individual to me.
     
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  17. jenny and mitch

    jenny and mitch Funster

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    Halfrauds sell a digital tyre pressure gauge for under a tenner. It will measure pressures up to 90 PSI.
    Set the pressures to what you are told by the manufacturer of the tyres you have.
    Just ring them.. There is a thread on here somewhere !!
     
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  18. Minxy Girl

    Minxy Girl Funster Life Member

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    As well as the above, having the wrong tyre pressure will also affect the handling when braking, especially if you have to pull up sharply or in an emergency. If you have an accident involving another vehicle and then had to make a claim with the insurance where it came out there was a problem (police DO check tyre pressures if appropriate) which wasn't addressed by you, you would be unlikely to be paid out, and also be prosecuted by the police if this was found to be a factor in causing the accident/making it worse.

    Do NOT mess about with over or under-inflated tyres, it isn't just a minor issue - these are the ONLY things that keep you in contact with the road!
     
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  19. Minxy Girl

    Minxy Girl Funster Life Member

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    I would suggest getting him his own tyre pressure gauge to use at home as he's much more likely to want to 'play' with it ... but make sure it is of a high enough rating to be able to inflate the tyres as some aren't, even on garage forecourts in Italy we struggled to find one that was capable of topping up our tyres.
     
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  20. teensvan99

    teensvan99 Funster

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    We have fount that a lot of garages only have their compressor outlet set to 60psi. Not a lot of good if you want 65psi. We bought a very nice portable compressor from Lidl in Germany 6 years ago €45. Pumps to 110 psi very fast. Not the silly little £10 ones. This is mains powered 1,000Watt. We spotted them in our local Lidl back in April this year for £60 so bought the son one as well. It comes with 6mtrs mains lead 6mtrs air hose and good tyre gun with pressure gauge.

    steve & ann. ---------- teensvan
     
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