Tyre pressures, doing my head in!

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Originally Posted by DiscoMick

I notice the Haynes manual for Defenders up to 2016, which arrived yesterday, says 28 front and 36 rear, which seems low to me.

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Rides fine stock like that.

Add a bar go +2
Add some load +2-4

Actually, I checked tonight and I wasn't quite right from memory. It's actually 30/48.
Here's what the door placard says:

https://www.aulro.com/afvb/images/im...018/05/237.jpg

Interestingly, the Haynes manual for 2007-2016 Defenders has different numbers (28/38):


https://www.aulro.com/afvb/images/im...018/05/238.jpg

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Originally Posted by DiscoMick

Interestingly, the Haynes manual for 2007-2016 Defenders has different numbers (28/38):


https://www.aulro.com/afvb/images/im...018/05/238.jpg

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I wouldn’t trust a Haynes manual..

They don’t even list the fitted size!!!

Yes, I also noted the absence of 235/85/16s in their list.
Later, in Reference 1 under turning circles, they show 265/75/16 for the 90 and 7.50 x 16 for the 110 and 130.
No idea why. Is it just an English thing?

Why different pressures for Japan and the rest of the world ? If it's got anything to do with CDL, please, please ignore this question.
.W.

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Originally Posted by B.S.F.

Why different pressures for Japan and the rest of the world ? If it's got anything to do with CDL, please, please ignore this question.
.W.

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I wondered that myself.

Quote:

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Originally Posted by B.S.F.

Why different pressures for Japan and the rest of the world ? If it's got anything to do with CDL, please, please ignore this question.
.W.

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Japan new issue tyres were probably a different load rating. Note the line: "Pressures apply only to original-equipment tyres." etc.

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Originally Posted by DieselDan

I've currently got almost the same as DiscoMick in the new ATs I've had fitted. 34 front 44 rear, fronts up 4 and rear down 4 from the placarded numbers.
Got the tyre place to change them from the 40psi all round that they initially set.
Carrying a bit of weight, but not too much, just a rijidij front bar and a set of drawers in the back. Plus the spare wheel carrier.
I'll try and do a pressure after the run to work tomorrow and see what they come out at.

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I've actually got 35psi front and 44psi rear I found out when I measured them cold this morning.
After my 30odd km trip to work (town stop-start traffic, then a good 20+km of 80-100kph) they were 38psi front and 48psi rear if that info is useful to anyone!

It's interesting the way tyre jockeys tend to just stick in 40 all round and ignore the recommended differences front to rear.