Quote:
Originally Posted by bsmith0404
Next steps in the above blow out story ...
A question first: Where should my expectations for ST trailer tires be, in terms of wear and life? Is it realistic to expect 15 to 20,000 miles with +/- 1/32 across the face of the tread? Does a spread-axle set up quicken the wear with each axle farther from the pivot point? (ok, more than one question!)
[COLOR="Red"]even tire wear can and should be expected if alignment and inflation pressures are correct. Based on your diagram of wear I have concerns of both. {...}
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Brent, thanks so much for the information and your time to share it.
The concepts are coming together for me.
Based on tread depths (pre-rotation) alone, I'm seeing the potential of negative camber on both left tires. Bent spindles? Both right tires show a picture of under inflation. Of interest, numbers are very similar from the OEM tires before I replaced them! Shoulda' scoped it out better then!
Reminder, it was the right rear that blew-out.
I have a ~$30 digital tire gauge that consistently shows +2 psi over the external TPMS sending units. With tread pattern indicating under inflation, what is the chance 2 devices are reporting artificially high numbers, resulting in under inflated tires, but only the right side?!?!? If the left side of the trailer is lighter than the right (slide on left; refer, furnace and water heater on the right), I'm guessing this could be partially explained?
Next steps: (1) compare digital pressure gauge to a standard, (2) find some portable truck scales where I can get individual wheel weights, (3) get some measurements to confirm wheel / axle / frame alignments.
Note to self: Add measurements to confirm wheel / axle / frame alignment to the PDI on my next trailer!
Thanks again, I'll post updates as this plays out.