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Tyre pressure on Isuzu bakiie 245x75x15 4x40tyre

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  • Isuzu Master
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Welcome to the Fixya USA forum. (we call them Tires)
the famous (choke) forum with Zero KB, nor Bakiee trucks
not a single one,
nor books on same.(for same reasons, wink !)
if running non standard tires, (in USA the law requires stock tire data
on the dirvers (left) door jamb)
but when you dont use stock tires, then you get to be mr. engineer.
in that case every tire maker in the world publishes,
a tire TABLE (paper) sheet, called a data sheet.
this sheet, covers weight of car, and proper pressure to match it.

there are only 2 ways to do this. (above)
google how to measure tire foot prints.
getting the pressure correct, allows for maximum traction
under inflated, causes cupping of the foot print
over inflated cause crowning... both are a danger, on wet roads
or driven too fast like that.
tire.101, end.

Posted on Dec 05, 2016

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Posted on Jan 02, 2017

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2 Answers

What are the tyre pressures for a peugeot 208


the tires have that stamped into the side walls . and should also be on the tag on the door frame .

Nov 18, 2016 | Peugeot Cars & Trucks

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What's the tyre pressure for a caravan with 185r14c on it


It depends upon the type of tyre, whether you have a single or dual axle as well as the weight of the van when loaded.

The maximum tyre pressure for the type of tyre you have will be listed on the sidewall of the tyre. Given the weight of a loaded caravan I would recommend you run the tyres at 2 PSI under the maximum pressure listed on the tyre for a cold inflation. If the maximum is, say, 40 psi then run the tyre at 38 psi. Tyre pressures will increase when the tyres are warmed up from running so always check and adjust the pressures when cold and purchase a good tyre gauge to carry with you if you do not have one yet. Higher tyre pressures within max specification, will lower the tyre's rolling resistance and tyre heat build up, places less stress on the tow vehicle and will give better tyre life on the van tyres.

Tyres are maximum load rated so know the van weight and make sure you do not exceed the load limits of the tyres (printed on the side wall) when adding weight to the van, including water storage.


Tyre Sidewall Explained

Jun 06, 2016 | Cars & Trucks

2 Answers

What is the correct tyre pressure for a 17 foot single axe pop top Regent caravan (tyre size 195-14)


I can calculate it with spreadsheet I made, call myself tyre-pressure specialist nowadays.
Depends on tyres maximum load and Pressure needed for that ( AT pressure 6pr 55psi/3.8 bar, 8pr 65psi/4.5bar or 69/70psi/4.75/4.8bar). and maximum speed of tyre given as letter mostly N to R for caravans.

Then from Caravan MPVW ( max permissable Vehicle Weight).
Or better real weight ( overloading is more rule then exeption and unequall load is possible.

But normal car tyres or XL/reinforced/Extraload are sometimes OK if they have enaugh maximum load for MPVW.
Will try to make picture of example.

correct-tyre-pressure-17-foot-single-axe-nytvitzoic12cmhzcghzxo3n-2-0.png

Feb 12, 2015 | Cars & Trucks

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Tyre Pressure for Majestic 19.6 ft Caravan


Depends also on the kind of tyre.
For the maximum load of tyre nex kinds need next pressure , wich is called AT-pressure/maxloadpressure/reference-pressure , for up to maximum speed of tyre or if lower 160km/99m/h. This is not the maximum pressure of tyre.

Normal car tyre /standardload AT 2.5bar/36psi ( exeptions as low as 2.2)
XL/Reinforced/Extraload AT 2.9bar/42psi ( exeptions 2.8 and 3.0)
6PR( plyrating) /C-load AT 3.8bar/55psi EUR ( USA 50psi/3.4bar)
8PR/D-load AT 4.5/4.8 bar/ 65/69/70 psi
From E -load is not often used in Europe.

From this AT pressure you can calculate the needed pressure for lower loads . Made spreadsheet for it in wich I first add 10% to the assumed load before calculating.
Will give example picture

tyre-pressure-majestic-19-6-ft-caravan-xmsabj0eaj41n3t120au3bmt-2-2.png

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1 Answer

Recommended tyre pressures


you don`t say what size tires are on your truck but I would say 35 lbs is about right. look on the door where the door latch is the maybe a decal that list what tire pressure it recommends.

Aug 05, 2014 | Isuzu Pickup Cars & Trucks

1 Answer

What are recommended tyre pressures


tire pressure is a function of car weight and tire type.
since you didnt post car year, we cant guess that, can we.
for stock tires, in the USA< open door, see tire pressures clearly stated.
for non stock tires, that sticker is USELESS, (not stated)
so in that case you get to play car engineer.
using the offical loading charts on the tire.
My jeep , has this. and i Did that.
if you get the pressure wrong the tire treads cup or crown.
causing LOST TRACTION.
it's a balance this.

short answer, ask Goodrich. or get the data sheet on YOUR tire.
and read it.
it's there,

Jul 10, 2014 | Isuzu Rodeo Cars & Trucks

1 Answer

Recommended tyre pressure


The required tyre pressure is established by the amount of load or weight that the tyre is carrying. Over or under inflation can cause excessive tire tread wear. The recommended pressures for your tyres are shown in raised lettering on the sidewall of the tyres.
Depending on what you are towing, you will know how much additional weight is being placed on the cars rear tyres, and you can adjust the pressure accordingly.
Personally, When I am towing, I increase the tire pressures by about 5 psi just to reduce sidewall flexing and create a more stable towing package.
Hope this helps.

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1 Answer

My 1991 isuzu trooper will start and then die after a few seconds. Its getting fuel to the motor and the fuel tank, filter and lines are clean. So its getting fuel. I changed the plugs today. The old ones...


check the fuel line pressure it should read 55lbs ,on the fuel injector rail is a tyre valve looking thing with a plastic cap ,connect a pressure gauge to this and see what you get

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1 Answer

What tyre pressure should the 2002 polo 1.4 auto be? Type of tyre: 165/70R14 Thanks a million.


2002 VW Polo 1.4

Tyre: 165/70 R14
- Front tyre pressure: 2,2 ... 2,4 bar
- Rear tyre pressure: 2,0 ... 2,6 bar
- Spare tyre pressure: 4,2 bar

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1 Answer

What causes the isuzu trooper 1994 to burn plenty petrol


1) Blocked air filter.
2) Poorly tuned.
3) Windows open.
4) Lateral roof bars and or roof box.
5) Low tyre pressure.
6) Running aircon all the time.
7) Boot loaded with junk.
8) Heavy foot on the accelerator.

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