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Old 20 July 2014, 07:07   #1
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Wheel nut torque and tyre pressure ?

Ive looked up the wheel nut torque settings and pressures for my trailer wheels and they seem high.

Twin axle Indespension Big Dipper with 185/70/13, 5 stud wheels, 5/8th thread and the information I found says 85 lbft.

Is that right ? Seems very high.

It also suggests the tyre pressures should be 87psi. That seems high as well. Way higher than the pressures in my Transit Van.

Can anyone tell me its fine, or Ive read the wrong instructions ?
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Old 20 July 2014, 07:21   #2
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No idea about the torque settings, but the tyre pressure seems about right for a heavy trailer.

I pressume they are 8 ply tyres and 87psi will be the pressure needed fror maximum load. If your rig is lighter than this you can reduce them to stop it bouncing too much.
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Old 20 July 2014, 07:47   #3
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For the wheel nuts - "tight" - just as you would with a car. Use the correct spanner and the torque will be about right. Don't use an extending wheel bract for doing them up.

For the tyre pressures I run mine soft enough to allow the tyre to cushion the load, but hard enough to keep the tyre temperature down.

The tyre should be no hotter than "just warm to touch".
Stop after 20 minutes and feel the tyres - if they feel "too warm" pump them up a bit.

Also good practice to feel the temperature of the wheel hubs.
They should all be the same temperature - cold or almost cold.
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Old 20 July 2014, 08:02   #4
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Cheers chaps. Thanks for the feedback - next time Im trailering I will check the temps and see how they feel.
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Old 20 July 2014, 11:02   #5
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If you have a shoofty in the trailers & towing stickies I put up a post of torque settings and tyre pressures
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Old 20 July 2014, 11:32   #6
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Ah, brilliant. Loads of good information there. Thanks.
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