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Caravan - twin axle tyre pressures
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highbayrack
 


Member Since: 09 Jul 2008
Location: Northamptonshire
Posts: 2776

United Kingdom 2014 Discovery 4 3.0 SDV6 HSE Auto LuxorDiscovery 4
Caravan - twin axle tyre pressures

Hi, Does anyone understand the formula for deciding the correct tyre pressures on a twin axle by using the MTPLM and the info shown on the tyre please. Ive looked at two different explanations and are getting two different answers. My caravan MTPLM = 1600KG. The tyres are 165R 13C (94/93 N) with a max load (single) of 670Kg @ 450KPA Max 65PS cold
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Post #95840824th Jul 2012 12:04 pm
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al cope
 


Member Since: 08 Nov 2005
Location: Oldbury, WM
Posts: 10289

England 

isnt the pressure in your handbook?

ours are 42psi on a Bailey Olympus 620-6 twin axle running on 185/65x14 tyres with a MTPLM of 1649kg

Al
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Post #95841724th Jul 2012 12:32 pm
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highbayrack
 


Member Since: 09 Jul 2008
Location: Northamptonshire
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United Kingdom 2014 Discovery 4 3.0 SDV6 HSE Auto LuxorDiscovery 4

Hi Al, Don't have the handbook i'm afraid and can't buy a copy anywhere. Mine is an Avondale Argente 640-6 and using one of the formulas I found it worked out to 38.8 (39) Psi so not that far from your 42, but it just seems a bit on the low side to me. I usually stick 40 Psi in anyway but as i'm taking it to Europe thought i'd better get it right as we will be upto max load Thumbs Up

Chris
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Post #95843024th Jul 2012 1:01 pm
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al cope
 


Member Since: 08 Nov 2005
Location: Oldbury, WM
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England 

yep - understand - I think 42psi seems to be average for most of the big T/A's, as I'm sure there was a thread a while back on this.

I know Avondale aren't in business any more, but Raymond James caravans in Cov used to be one of their biggest dealers, and if I recall, are now located in the old Avondale premises. You could try calling their service center and asking.

Al
 Volvo XC90 B5 Plus Dark
Gone - MY18 D5 HSE - Corris on 22's with Black Pack
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Old - MY12 D4 SDV6 XS Auto - Ipanema Sand with Almond Leather - Plus other niceties, and D4.com sticker
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Post #95843624th Jul 2012 1:18 pm
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muddywheels4wd
 


Member Since: 16 Dec 2010
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38 On my crusader Bow down

Try http://www.caravantalk.co.uk/community/ Thumbs Up
 Wanted a Series 2 LR since childhood but previously owned MY16 Disco Sport HSE TD4 Auto, MY13 RR Sport Black Edition TDV6 Auto, MY10 RR Sport HSE TDV6 Auto, 2007 Freelander 1 Freestyle TD4 Soft Top, 2009 Freelander 2 GS TD4 Auto, 2007 Freelander 2 GS TD4, 2004 Disco 2 Metropolis Auto, 2002 Disco 2 GS, 2000 Freelander 1 SE TD4 SW

Still hoping for a S2 one day! 
 
Post #95844824th Jul 2012 1:40 pm
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al cope
 


Member Since: 08 Nov 2005
Location: Oldbury, WM
Posts: 10289

England 

just found this on caravan talk:

Several members have recently been looking for Avondale manuals.

We AAOCC (formely All Avondale Owners Club)were contacted last year by a company that hold many of the manuals on file and are happy to print and post our for a modest cost. You can contact them at;

Preset Graphics
01332 549278
presetgraphics@btconnect.com


did a quick search and there doesnt appear to be any entries for Argent tyre pressures

Al
 Volvo XC90 B5 Plus Dark
Gone - MY18 D5 HSE - Corris on 22's with Black Pack
Now gone - MY16 D4 SE Tech, Loire Blue, Almond Leather, Privacy, plus some other goodies.
Old - MY12 D4 SDV6 XS Auto - Ipanema Sand with Almond Leather - Plus other niceties, and D4.com sticker
Older - D3 TDV6 XS Auto - Lugano Teal with Almond Leather, 20" Stormers, Shiny Tailpipes, DVD/TV - and obligatory D3 sticker
Ancient - D3 TDV6 S - Tonga with Ebony, 20" Stormers, satnav & DVD 
 
Post #95845524th Jul 2012 1:53 pm
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muddywheels4wd
 


Member Since: 16 Dec 2010
Location: East Riding of Yorkshire
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England 

You could join the forum and ask other members if they have the info Bow down
 Wanted a Series 2 LR since childhood but previously owned MY16 Disco Sport HSE TD4 Auto, MY13 RR Sport Black Edition TDV6 Auto, MY10 RR Sport HSE TDV6 Auto, 2007 Freelander 1 Freestyle TD4 Soft Top, 2009 Freelander 2 GS TD4 Auto, 2007 Freelander 2 GS TD4, 2004 Disco 2 Metropolis Auto, 2002 Disco 2 GS, 2000 Freelander 1 SE TD4 SW

Still hoping for a S2 one day! 
 
Post #95845824th Jul 2012 2:03 pm
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highbayrack
 


Member Since: 09 Jul 2008
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Thanks guys that has put my mind at rest Thumbs Up , i'll go with the 38psi as it backs up the formula i tried and I will also follow up on the other suggestions Thumbs Up
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Post #95846124th Jul 2012 2:27 pm
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D4mation
 


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You must have used this formula -
MTPLM x Max PSI / Max Tyre Load x Number of Tyres

1600 x 65 / 670 x 4 = 38.8 psi

I found the formula on CaravanTalk some while ago.
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Post #95863724th Jul 2012 11:15 pm
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pgerman
 


Member Since: 16 Jun 2008
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Highbayrack,

PM me your home address and I'll send you a copy of my handbook. I have the Avondale Windsor 640-6 which is the same as yours bar a few bits and pieces. Just taken a look and my handbook covers the Argente as well as the Windsor.

Regards
Paul
  
Post #95864224th Jul 2012 11:30 pm
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highbayrack
 


Member Since: 09 Jul 2008
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United Kingdom 2014 Discovery 4 3.0 SDV6 HSE Auto LuxorDiscovery 4

Hi Paul, PM sent Thumbs Up
 On a mission to find the perfect Pork Pie. Just Found it (I think)..(Yes I have)
Official product sponsor for "Bloodhound SSC" 1000+ mph world land speed record 
 
Post #95907026th Jul 2012 7:41 am
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highbayrack
 


Member Since: 09 Jul 2008
Location: Northamptonshire
Posts: 2776

United Kingdom 2014 Discovery 4 3.0 SDV6 HSE Auto LuxorDiscovery 4

D4mation wrote:
You must have used this formula -
MTPLM x Max PSI / Max Tyre Load x Number of Tyres

1600 x 65 / 670 x 4 = 38.8 psi

I found the formula on CaravanTalk some while ago.


Thanks, thats the formula I used and will go with that, it was just that the dealer origionally told me 42 psi and it never felt right. By the way, I see we both have the best color D4's Thumbs Up
 On a mission to find the perfect Pork Pie. Just Found it (I think)..(Yes I have)
Official product sponsor for "Bloodhound SSC" 1000+ mph world land speed record 
 
Post #95908026th Jul 2012 8:11 am
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bambi
 


Member Since: 10 Apr 2009
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From a posting on caravan talk 165/80/13 pressure is 35psi, posted by swift caravan representative. So looking at this answer and the others 35-40 psi you ain't gunna be far out.

My hymer runs at 60psi for comparison.
  
Post #95914426th Jul 2012 11:04 am
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