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Old 07-21-2014, 10:43 PM   #621
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The important part is the relationship/pairing of a specific sensor with a display position on the monitor. Mark the sensor with a paint pen and something that makes sense to you relative to the readings and keep them located accordingly.

Ultimately I am slightly less concerned about WHICH sensor shows a fault than that there IS a fault - which warrants an all-tire check of pressure and temp.

To that I have equipped the "McGiver kit" with a spare laser temp sensor and tire pressure gauges.

When it's time to road-stop and check, EVERYTHING gets checked, at least until I get comfortable with and trust all the pieces, and even at that, never trust safety to assumptions.

I have a used small 12v commercial grade compressor I'm likely to upgrade if it can't make 80# quick enough. I am actually more concerned about over pressure (to 85#+) and temps than under (down to 70-75# anyway) and equalization.

Given that it's tough so far to really know in the driveway how the shady side vs. sunny side are going to behave. In 2-3 months it will be intuitive, until then I trust science and data.

All this because we experienced the massive 3-tire disaster in one weekend on original wheels and cheap older tires, so I'm getting acquainted with the Sendel T03/Michelin upgrade behaviors... but in 40 years, many vehicles and types, I am less concerned about Michelins than what I do not know about 10 y.o Airstream axles and the brakes and bearings.

Whatever my trusted mechanics tell me about lubes for my Duramax or my bearings I am going with... we have at least 10k miles of this wonderful country to explore living riveted and we are going to do it well.

Be safe! (or as one of my friends says: "the price of quality only hurts once" and by experience no better words can be said.)
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Old 07-22-2014, 05:59 AM   #622
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One of the metallic versions of a Sharpie lasts about 2 years on my Pressure Pro sensors. About $2 at any store.
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Old 07-22-2014, 06:09 AM   #623
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My first Dill valve stems were clearly marked by Dill. Second set not marked. I had to figure out position by playing with tire PSI and monitoring, hassle.

Maybe time to call Dill or email and cite this shortcoming. I also think the cabling for the display makes it a dash hog, takes up more space due to bottom power feed on my dash.

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Old 07-22-2014, 06:43 PM   #624
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The task is completed and we will be heading out tomorrow morning on our new axles, 16" wheels and Michelin LTX225/75R16(E) tires. I did snap a few photos, and I'll upload them as soon as I can. None were taken of the process itself (JC frowns on anyone doing that, as it disrupts the shop, not to mention slows down the work - remember, it's about $116/hr).

The spare carrier was adjusted so that the new wheel and tire fit. As well, the hitch was adjusted, as between the new axles and larger diameter wheels and tires, the Excella rides about 2-1/2 inches higher.

I now need to ensure that I know all times which wheels have which sensors, as the individual sensors are paired with the chip in the receiver/display. Dill labelled the sensors, but they are inside the rim, so some means of permanent marking of the wheel is necessary. Any "sharpie" or ink-based system will not last, so I plan on using a small vibrating etching marker to just etch a small letter on the wheel just beside the valve stem.
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Old 07-22-2014, 06:45 PM   #625
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As an addendum: JC said that the info sheet that comes with the wheels recommends torquing between 125 to 135 ft-lbs. They torqued the wheels at 130 ft-lbs and thatis what they recommend in this case.
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Old 07-22-2014, 07:13 PM   #626
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When I installed the new 16" tire and steel wheel into the spare position, I had to get on the ground and shove the tire more to the rear. I did NOT have to change or bend the upright arms to keep the tire on the frame like I did on my 25FB. Having said that, I would gladly let a younger chap get the spare out on a lousy day because I would have to get under the trailer to get the leverage to remove the spare.

Bummer getting older....
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Old 07-27-2014, 10:42 PM   #627
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We just took delivery of a 2014 International 23D to replace our 2013 International 19.

We upgraded the 19 with 16" wheels and Michelins shortly after purchasing.

The 23D has 14 inch load range C Marathons with rubber stems. Doesn't Airstream listen to their customers?

I'd like to replace the 14 inch wheels with 15s and Michelin LT M/S. Has anyone done this on a 23D?
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Old 07-28-2014, 06:53 AM   #628
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This photo was taken outside the service area at JC *before* the hitch was adjusted. You can see just how much higher the new axles and 16-inch tires has raised my trailer. You can also see those nice new wheels. What you can't see are the Centromatics that are slipped on over the wheel studs between the wheels and the hubs.
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Old 07-28-2014, 06:57 AM   #629
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The hitch adjustments were to raise the head by 2 inches and to change the head angle so that the torsion bars hung a bit lower, changing the chain length from 7 dropped links to 6 dropped links. Bob, the tech, also checked to see that the cams were also aligned - they were which meant that no adjustment to the cams was necessary.
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Old 07-28-2014, 06:58 AM   #630
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A friend of mine suggested that if you put LT truck tires on a trailer, the tire manufacturer may not pay for damage to a trailer caused by the tires.
I told him that 16" LT truck tires were an option from the factory and a certain trailer came with them standard equipment.
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Old 07-28-2014, 07:00 AM   #631
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A closer view of the 16-inch wheels and Michelin LTX tires.
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Old 07-28-2014, 10:04 PM   #632
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Unlikely/challenging you'll have adequate load capacity with 15" LT tires. Curious to see if that happens.
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Old 07-29-2014, 04:42 AM   #633
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Quote:
Originally Posted by interstateflyer View Post
We just took delivery of a 2014 International 23D to replace our 2013 International 19.

We upgraded the 19 with 16" wheels and Michelins shortly after purchasing.

The 23D has 14 inch load range C Marathons with rubber stems. Doesn't Airstream listen to their customers?

I'd like to replace the 14 inch wheels with 15s and Michelin LT M/S. Has anyone done this on a 23D?
I think I saw a thread about taking the 14"s to 15". It was a year or more ago. I think it's possible. I've just decided to keep the 14"s for now. I'm interested in anything you find out though. It's too bad we can't use some of these 15"s that theses guys are taking off to go to the 16"s, but I believe the lug pattern is different.
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Old 07-29-2014, 10:29 PM   #634
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A number of us with 23' trailers have upgraded from the stock 14" up to 15" wheels primarily to get better tire options, including the Michelin's. We went with Sendel T02's to keep the original look. The 5-bolt pattern on these 23' trailers rules out the 15" wheels are others are trading out for 16" wheels because they are 6-bolt pattern. In my opinion the 15" wheels and tires are more than adequate because the 23' trailers have the lowest weight per axle of any current Airstream. For us it has meant peace of mind, and we think the larger wheel/tire combo is better looking, too. Happy we did it.
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Old 07-29-2014, 11:49 PM   #635
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Quote:
Originally Posted by GettinAway View Post
I think I saw a thread about taking the 14"s to 15". It was a year or more ago. I think it's possible. I've just decided to keep the 14"s for now. I'm interested in anything you find out though. It's too bad we can't use some of these 15"s that theses guys are taking off to go to the 16"s, but I believe the lug pattern is different.

I drove from Alaska to Arizona last year to pick up an Airstream Safari 28 with 15" wheels and immediately changed them to 16" because of wonderful advice from folks on this forum. It may interest you to know that I originally planned to acquire an Airstream 23' and contacted the Airstream folks in Ohio, who gave me the go-ahead to change to 16" tire/rims. The 28-footer suited me better, and I drove back home to Alaska solo via the Alaska Highway with no problems and happier than a clam to have made the switch to 16-inch Michelin LT load range E if nothing else but for safety and peace of mind!!
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Old 07-30-2014, 06:39 AM   #636
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Wheel and tire size vs capacity

Like many I have made the switch to 16 inch w/Michelin Rib LT tires on a 28 foot rig. I could not get comfortable that my loaded per wheel cavity was sufficient to stay on 15 inch C or D LR tires. I have been told my a number of fleet operators that LRs are not an exact science and one needs to provide a safety margin for extended travel. When queried I was told and I agree with this after over 20 blow outs in the last 5 years, that the LR spec does not include extended (more than 1 hour) runs at 65 mph in ambient temperatures exceeding ISA plus 25 on imperfect asphalt where surface temperatures exceed ambient by over 50 degrees. Put another way, I-20 near New Orleans, in Summer at 100F, and road temps of 150F will reduce the effective LR by at least 20% if the tire has already run an hour or two. The transient loads as you traverse chuck holes and pavement breaks soar creating stresses for which trailer tires are never tested. LT tires are tested for classification purposes but the extent to which they can take this stress level is a function of the manufacturer's aversion to liability and not because they want publicity for the strongest tire built as the truck manufacturers might.
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Old 07-30-2014, 07:25 AM   #637
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This link to the SenDel wheels used by Airstream

T03SM | Sendel Wheels

shows both a 14" and 15" wheel with the same 5/4.50 bolt circle and number of bolts, same 3.19" center bore and same zero offset. The 14" wheel has a 1,900 pound load rating at 60 psi and the 15" has a 2,150 pound load rating at 60 psi.

The larger bolt circle 6/5.5 15" and 16" wheels have the same number of bolts, zero offset, and 4.25" center bore. The 15" wheel is load rated 2,830 pounds at 80 psi and the 16" wheel is load rated 3,580 pounds at 80 psi.
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Old 07-31-2014, 04:38 AM   #638
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Quote:
Originally Posted by switz View Post
This link to the SenDel wheels used by Airstream

T03SM | Sendel Wheels

shows both a 14" and 15" wheel with the same 5/4.50 bolt circle and number of bolts, same 3.19" center bore and same zero offset. The 14" wheel has a 1,900 pound load rating at 60 psi and the 15" has a 2,150 pound load rating at 60 psi.
.
Hmmm, nice change. I wonder if there's a market for my used 14" wheels.
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Old 07-31-2014, 07:53 AM   #639
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Farm wagon?
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Old 07-31-2014, 08:37 AM   #640
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Hmmm, nice change. I wonder if there's a market for my used 14" wheels.
Maybe. We sold our 15" wheels/tires to a fellow with another brand camper and he was happy to have them, replacing his steel wheels. They were like new condition. Advertise the size, bolt pattern, offset.
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