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Trailer Tire Pressure

Old 04-10-2021, 06:15 AM
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Originally Posted by NLOL View Post
No I did not know that; and you didn't know that I too have a CDL and once employed 5 fulltime drivers in my fleet, serving my other companies. It is hardly relevant. What is relevant is the information contained in post #17. and the personal espoused that deny/dispute that information. Those of you touting max pressure don't have the credentials to get hired as tire engineers, nor as expert witnesses, yet you claim to know better than the people who design, test, and pay the penalty if the information they provide is faulty.
Youíre a boat captain and a truck driver. Why didnít you say that from the beginning? Let me know if youíve done anything else so I can address you appropriately.
Old 04-10-2021, 06:24 AM
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Originally Posted by Milehog View Post
Um, cold tire inflation pressure ring a bell?
The same tire in Nome in February will require more air molecules than in August in San Antonio. Cold tire inflation covers it.
Iím no boat captain, but the first law of thermodynamics would suggest itís the same amount of air molecules in both scenarios and the only thing that changed was their relative distance to one another. Again, Iím no boat captain.

Old 04-10-2021, 06:42 AM
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Originally Posted by cajflynn View Post
So much emotion on a silly topic. You guys want to argue about how loose to set your lug nuts next?
Looking at this discussion we could end up in two camps: torquing to the recommended torque spec with a torque wrench vs torque it to the maximum with the impact wrench and hope the stud doesn’t snap. That would be ridiculous, just like this discussion has become.

How about we settle at max inflation is a safe default, but the chart can be followed with actual weights and quality tires?

Last edited by broncoaz; 04-10-2021 at 07:02 AM.
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Old 04-10-2021, 06:56 AM
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Originally Posted by broncoaz View Post
Looking at this discussion we could end up in two camps: torquing to the recommended torque spec with a torque wrench vs torque it to the maximum with the impact wrench and hope the stud doesnít snap. That would be ridiculous, just like this discussion has become.
You think this is bad? You should see the discussions about how to set the castle nut.
Old 04-10-2021, 08:00 AM
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All this may be true but none of you has addressed how I need to adjust the tire inflation if pulling with my Rav4.
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Old 04-10-2021, 08:03 AM
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Originally Posted by cajflynn View Post
You think this is bad? You should see the discussions about how to set the castle nut.
shit nearly spit my coffee out on that one!!
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Old 04-10-2021, 08:04 AM
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Heck I ordered new tires and wheels not too long ago
sidewall max 50. Tires were shipped at 65. Ohhh nnoooo
Old 04-10-2021, 09:42 AM
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I'm trying to find out which way to bend the cotter pin holding the castle nut in place. Anybody know anyone that has a ticket?
Old 04-10-2021, 10:11 AM
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You bend the cotter pin? I read somewhere that some guy thought he heard of another guy that was told by his best friendís mechanic that gravity held it in.
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Old 04-10-2021, 10:23 AM
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You don't use the cotter pin anymore as they have been cancelled. Put a little anti-seize on the axle threads and torque to 140 foot pounds!
Old 04-10-2021, 10:51 AM
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Originally Posted by cajflynn View Post
Iím no boat captain, but the first law of thermodynamics would suggest itís the same amount of air molecules in both scenarios and the only thing that changed was their relative distance to one another. Again, Iím no boat captain.
You may want to channel that Brownian guy and learn to trust the engineers that design the tires. Colder, slower molecules have reduced pressure so more are needed in Nome. Their more active nature in San Antonio require less to reach the target pressure.
Not a Capt. either but I am considering building another boat. I know you drive hot shots. I drove seven axle highway trucks before I started a career in hauling the heavy stuff.
Old 04-10-2021, 10:59 AM
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Originally Posted by Milehog View Post
You may want to channel that Brownian guy and learn to trust the engineers that design the tires.
Weíre talking about Chinese trailer tires. Iím probably not going to be that trusting.

I have hot shots and semis. Heavy hauling is a whole other world though. Love to see your truck.


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Old 04-10-2021, 11:05 AM
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For milehog. This is our big setup. Max pressure in the trailer. The trailer has an automatic air system that keeps them all at 120 lbs.



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Old 04-10-2021, 08:53 PM
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Originally Posted by cajflynn View Post
Weíre talking about Chinese trailer tires. Iím probably not going to be that trusting.

I have hot shots and semis. Heavy hauling is a whole other world though. Love to see your truck.
Understood on the chinese tires. I recently replaced the chinese tires on a less than one year old travel trailer with GY Endurance.

When I mentioned hauling heavy stuff there was a short gig in mining then a railroad career. 34,000,000# trains.
I worked on the orange ones.


Old 04-11-2021, 05:52 AM
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Originally Posted by Milehog View Post
Understood on the chinese tires. I recently replaced the chinese tires on a less than one year old travel trailer with GY Endurance.

When I mentioned hauling heavy stuff there was a short gig in mining then a railroad career. 34,000,000# trains.
I worked on the orange ones.
Oh damn. Thatís amazing.

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