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Old 04-25-2010, 01:02 PM   #99
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so the lifting/mounting/lowering and torquin' completed...

here's a couple of shots.

curbside

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streetside

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cheers
2air'
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Old 04-25-2010, 01:08 PM   #100
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and a pic 2 remind about choosing air pressures and lug nut/bolt specs.

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cheers
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Old 04-25-2010, 01:15 PM   #101
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disc brake house keeping...

back in post #72 the semi metallic disc brake pads were mentioned.

these were eventually replaced with new pads, after 55,000+ miles of use...

that replacement is covered here (see posts #58-65)

http://www.airforums.com/forums/f439...tml#post767891

along with pics of how little wear the original pads showed even with the milage noted...

it's about time for another bearing REpack, which will go into some OTHER thread...

cheers
2air'
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Old 04-25-2010, 08:41 PM   #102
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2air , thanks for the update . Although I'm not an ST user I appreciate the real world reports.
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Old 04-25-2010, 09:35 PM   #103
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Splain Lucy?

Hi, 2air. Your story led me to believe you continued to use Goodyear Marathons, but I see Maxxis. Also on my trailer, with my tires, the tire pressure max cold by Goodyear and recommended pressure from Airstream is 65 lbs; I see you have yours at 70 lbs. Also, miss-understood lug nut torque, by many Airstreamers. On my unit, my lug torque is recommended from 110 to 120 lbs; And set mine at the max, 120 lbs. But according to my owner's manual, steel wheels are only torqued to 95 lbs. So, if I ever have a flat tire and have to install my steel-wheeled spare, I will only torque it to 95 lbs. You have yours marked at 95 lbs?
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Old 04-25-2010, 09:48 PM   #104
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Quote:
Originally Posted by ROBERTSUNRUS View Post
... You have yours marked at 95 lbs?
hi bob,

howz things on the left coast?

different wheels=different torque settings.

zoomzoom posted this valuable shop manual page a few years ago here (post # 81) ...

http://www.airforums.com/forums/f465...tml#post258505

it's important enough to add the photo again here

(open in a new window and ZOOMzoom) ...

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the rims on my rig are last column 3 down (or up)

spec calls for 90-100.

more answers to follow.

cheers
2air'
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Old 04-25-2010, 09:54 PM   #105
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Hi, the picture of the wheel on the top left is mine and they listed it at 115 lbs; My book says 110 lbs to 120 lbs. This page averaged the torque. Also they have my steel spare listed at 100 lbs. intead of the 95 lbs my book lists.
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Old 04-25-2010, 10:08 PM   #106
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at least 115 is BETWEEN 110 and 120....

notice MOST of the trailer rims on that page are in the 90-100 ft/lbs range...

your rims are the exception and folks DO need to be aware of this,

since SO MANY of that style are in use on late model bambi and safari steams....
_____________

Quote:
Originally Posted by ROBERTSUNRUS View Post
the tire pressure max cold by Goodyear and recommended pressure from Airstream is 65 lbs; I see you have yours at 70 lbs...
yes and i always KEPT the gyms at 65 psi as noted.

the D rated gyms have a load limit if 2540lbs at 65 psi.

the new tires are E load tires and carry UPTO a 2830 lb load at 80 psi.

at 65 psi they are equivalent to the gyms at the 2540 lb level.

and at 70 psi they are load rated to 2620 lbs.
____________

having weighed the trailer axels TOGETHER and separately several times...

and EACH tire/wheel contact point 3 times...

i have ONE tire/wheel that is occasionally loaded 200-300 lbs HIGHER than the others.

(when the fridge and closet are FULL o'beer)

so i am trying the 70 psi for awhile.

the tpms being used also measures air TEMP inside the tires...

so over the next few HOT months

i'll evaluate how this cold inflation pressure translates into temps and pressure changes while IN use,

and make adjustments (or fiddle) to the cold inflations.

does that make sense?

cheers
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Old 04-25-2010, 10:32 PM   #107
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Hi, Now, I know why your torque is 95 lbs and your tire pressure is at 70 lbs, but you didn't explain why the switch to Maxxis. I'm guessing for the load range "E".
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Old 04-25-2010, 10:37 PM   #108
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Makes a LOT of sense, 2air. Real data from your experience, clearly expressed.

I'm curious 2, why the Maxxis SWITCH from gyms?

Thanks for THE reporT.
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Old 04-25-2010, 11:19 PM   #109
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Quote:
Originally Posted by ROBERTSUNRUS View Post
you didn't explain why the switch to Maxxis...
Quote:
Originally Posted by Aage View Post
...I'm curious 2, why the Maxxis SWITCH from gyms?...
yeah the question IS why mess with a good thing?

the short answer is just for the hell of it

besides the chinese made gyms were GREAT, the canuck gyms pretty good, but i dunno 'bout usa made tires yet...

they got no track record.
_________

the longer rationalized answer goes like this...

(+) gyms DO come in an E rating but (-) only in 16s...

(+) the E rated 8008s are ~4 lbs heavier per tire but (+) still have a very FLEXible sidewall...

(+) i liked knowing gyms were available everywhere or with LOTS of GY shops available while traveling.

(-) the m8008s are NOT available many places and mostly ONLINE...

(-) the gyms are NOT available with road hazard coverage, only the typical defects warranty.

(+) the online vendor for M8008s provides 3 years (down to 3/32nds) of FULL replacement road hazard coverage...

(++) not prorated for wear, FULL replacement, if the tire is NOT repairable,

(+) they simply ship a new tire and the shipping cost is paid too.

the price with shipping AND this road hazard coverage was only ~15$ more per tire, for the E rated maxxis compared to the gyms.
__________

i have purchased vehicle tires made in germany, the u.k., ireland, japan, usa, mexico, norway, canada, china, france and finland...

so it was time to try some tires made in thailand



i would have NO trouble buying gyms again.

they have performed as expected and without trouble for nearly half a million miles...

and i may just go back to the gyms in 2-3 years when these round black things are up for renewal...

reports on the experience with these (good or bad) to follow...

cheers
2air'

there are other folks here running the m8008s and here are a few threads...

http://www.airforums.com/forums/f438...ing-37352.html

http://www.airforums.com/forums/f438...ion-42493.html

http://www.airforums.com/forums/f438...xis-49083.html

http://www.airforums.com/forums/f438...lly-46331.html
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Old 04-25-2010, 11:45 PM   #110
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I'm wondering who the online vendor is "the online vendor for M8008s provides 3 years (down to 3/32nds) of FULL replacement road hazard coverage...".

Also, why load rating "E" rather than "D"?

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Old 04-25-2010, 11:52 PM   #111
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hi jim

the E issue has been addressed above...

vendor link and "refund/replacement" warranty here...

Discount Tire Direct - Certificate for Refund or Replacement

i've purchased tires from tirerack several times over the last 10 years when the local shops didn't stock 'em.

and had good service.

and so far this D T D vendor has been fast/friendly and had FRESH tires.

it's too early to wildly endorse them, but so far i'm satisfied.

cheers
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Old 04-26-2010, 01:45 AM   #112
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So, what can we learn from 2air’s Goodyear Marathon tire mileage, 40,000 miles on a set of tires. What did he do right to get so many miles on a set of tires without a major failure? I have to admit, I’m 3 failures for 6 total Marathons on two trailers even though I’ve followed all the accepted practices of tire maintenance to the point of being manic.

I see two things 2air did beyond the normal practices that may save me and others from catastrophic trailer damage due to blowout. One, rotate and INSPECT your tires frequently (every 5000 miles?). See post #13 in this thread where suspect tread-wear was found and 2air replaced the tire. (I believe the wear pattern to be the beginning of tread separation as in all three of the Marathon blowouts I had.) Some of us children of depression era parents may have difficulty with this concept of changing out a perfectly looking tire.

2air also found a tire that seemed to wear faster than the others due to a difference in the rubber compound. (#58-59) Again, the tire was replaced. I wonder what would have happened if he got 6 of those fast wearing tires. Would he have ever known before a tire failure? The important thing here is that he replaced the tire. (If in doubt – replace the tire!)

Maybe I lost track, but did 2air did have to replace 2 Marathons out of 12 tires due to defect? Even one of 12 is not a good track record.

Is tire failure more common with ST tires than common truck and passenger tires?

Beside frequent inspection when rotating the tires, 2air had minimal storage time of the trailer and tires as he was on the road the majority of the tire’s life. The tires were constantly used and exercised, and I wonder if this is the major difference in tire longevity of trailer tires compared to truck or passenger car tires.

In summary: A 30,000to 40,000 mile life-span of a tire in any tire class is unacceptable in this day and age. Think of your personal vehicle whether it be car or truck, and consider if you’d accept a tire that lasted 30,000 – 40,000 miles that limited you to 65mph.

I maintain the DOT needs to re-evaluate trailer tire standards for longevity and speed ratings. A trailer tire should be able to handle any posted speed limit in the USA including I-8 in Texas, 80mph. The ST rated tires should also wear at least 80,000 miles. Talk with any trucker and find these are not out-of-bound limits.

JimW
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