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Old 06-27-2019, 08:28 AM   #31
cjcalandra
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I'm pretty sure you took your wheels and tires to a woefully unqualified shop. I took all 4 of my factory tires off my 2016 3791RD in my back yard with a manual device, some sweat equity and patience. Maybe your "typical" American shop was staffed by non Americans.
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Old 06-27-2019, 08:57 AM   #32
mcomeaux
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I changed mine out to Sailuns and had no issue's. I spent 35 yrs in tire industry and never experienced damaging wheels to remove tires. Did they use rim clamp machine or old style Coates 20-20?
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Old 06-27-2019, 09:36 AM   #33
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Should have taken them to an RV dealer in the first place. They have the correct tools and knowledge
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Old 06-27-2019, 11:40 AM   #34
cookinwitdiesel
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I went to camping world first, their equipment was broken.
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Old 06-27-2019, 01:27 PM   #35
Tireman9
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Quote:
Originally Posted by cookinwitdiesel View Post
I got a set of Sailun S637 STs for my trailer and took them and the oem wheels with Westlakes installed to a shop to get them swapped. The shop works on commercial trucks and stuff, so no stranger to higher pressure, heavier duty tires and wheels. Apparently they spent hours on it yesterday and could not get the Westlakes off of the Lynx Aluminum rims without damaging the rims. They only took off one tire then stopped because they didn't want to tear up the whole set. I went in this morning to see what is up and talk about options.

They started out with the usual: cheap Chinese tires, low quality, blah blah blah that you would expect to hear from an American mechanics shop. Allegedly the problem is that the (cheap Chinese) rubber is too stiff on the tire bead and they could not work it around the rim - the tire was tougher than the aluminum and the rim suffered as a result. They of course claim that the American made Goodyear G614s don't have this problem.

They are remounting the one tire they removed and I will leave the Westlakes on for the time being - when I go back tonight they will present their solution to compensate me for the rim they damaged. The rim damage is purely aesthetic, nothing structurally compromised, just a bummer. Picture attached.

Has anyone else come across anything remotely resembling this problem? Are these guys just subpar? This was the shop that the local CampingWorld sent me too since their tire stuff was broken or something like that. I know a ton of people use the Sailuns happily, and had to get the Westlakes off in order to install them - I am curious to hear what others experienced.

Thanks!

A couple of potential issues: Terminology is important.


Was the initial problem that they could not "DE-Seat" the beads of the tire from the wheel? or They did d-seat the beads but had difficulty in de-mounting the tire from the wheel.


Hard De-seating can be caused by improper shape or placement of the "safety hump" on the wheel. Modern mounting machines can generate enough force to actually break the tire bead wire when doing a de-seat.
If the tire has a "tight" or OOT small bead bundle that usually shows up in high seating pressure. Since you didn't notice that I would think the tire bead is not the problem.



Hard de-mounting can be caused by shallow or improper offset of the 'Well" of a wheel. Some wheels even have the well off center to the back side which makes things difficult. This is IMO just bad wheel design where "looks" are considered more important than proper and safe function.


There are specs and special tools for measuring wheels. The bad news is that outside tire R&D departments, I don't know where you can get your hands on any of the specialized tools to check the measurements.


The few times I ran into these issues in my 40-year career, it was with wheels made by smaller companies that do not have engineers who understand the importance of these specifications.


Bottom line I suspect the wheel .
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Old 06-27-2019, 05:32 PM   #36
Blackrock
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I started busting tires the hard way when I was 10 years old. Fixing flats on tube type tires, 3 piece wheels and farm tractor tires. Dad hardly ever took a tire to town to be fixed.
Worked 40 years in the car, truck and ag industry doing it all. Weekends helping buddies mount new meats on their lifted trucks. From wheelbarrow to earthmovers I never met a tire and wheel combination that defeated me.

A lot of tire shop managers are just managers with limited practical experience. The guys busting tires have maybe one year or less and turnover is fast.

Their are two types of tire lube; the liquid soap and the gooey rubber grease type. Knowing when and how much to use will make a job go real easy. If they are breaking the duck bill then they sure as heck don't have a clue how to use the machine and to lube that bead coming off. On a rim clamp tire machine there is and adjustment to keep the duck bill from ever contacting the rim.
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Old 06-27-2019, 07:25 PM   #37
cookinwitdiesel
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It seems that the issue was de-mounting the tire from the rim, NOT de-seating the bead. It also seems the issue was the people at that first shop not being prepared to deal with an aluminum rim in such a stiff tire (not to say it couldn't be done, they just lacked the skill/experience needed).

Through all of this, I learned to be more choosey about my tire shops and now am armed with the right questions to ask up front.
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