RV'ers with No Goodyear G670 Problems

topflite51 wrote:
That ? was posed to him, and as I recall his response was that tire inflation charts indicated the minimum air pressure for the load. So if you weigh your coach and use the number indicated by the chart you are inflating for the ride, and that is what so many are interested in.

>>>>>Have you ever heard of overinflation? No where on the table does it say minimum pressure. Truck and RV tires publish inflation tables because the load can vary. The manufacturer is publishing the table so that the tire is inflated properly, and the tire contact to the road is proper. If you are carrying a light load, and you inflate the tire to the maximum pressure, only the center of the tire tread is contacting the road, and therefore it is overinflated. Traction will be affected. That is why when the tires are used in a dual configuration, the pressures tend to be lower, cause you have 2 tires to carry the load. The manufacturers spend a lot of time developing these inflation tables. Additionally, when a manufacturer specifies a specific inflation pressure, they are assuming liability for that information. It would behoove you to follow it and not just blindly inflate to maximmum pressure.

As to why one brand does and one brand doesn't do something, probably has something to do with different tire construction and compounds.

>>>>Precisely, and that is whatmakes some tires better than others.


As to what is on high value coaches, has probably more to do with what is spec'd by manufacturer. One thing I do also know about it, what tires come on new MH's has a lot to do with price and availability at the time of production. My parents DS on a Spartan came with GY 670's and he has had no wear problems, but then he hasn't weighed his coach either. For the record he just replaced them with the same, he figured he was on borrowed time as they were going on 8 years. I am sure other top MH's have also had GY's installed. I would even be willing to bet there are other top of the line MH's that came with other brands installed.

As to shops checking one's suspension, I personally haven't been around a shop that can legitamately check out shocks on a 40 foot MH. Tough to do a bounce test unless they have a resident elephant on site. Then again, as he said, the shock does not have to be worn out, it may just not be sufficient to do the job. I seem to recall there was at one time a problem with FSD's and CC's. It seems that the shocks were undersized and they were replaced by either CC or Koni, don't remember which. Don't remember what brand of shock was used either must be my CRS.

>>>>>Generally, if there is no visible signs of leakage, the shock is most probably still good. Additionally, the characteristic rivering issue seems to afflict the Goodyears at a much higher rate than other brands. I guess all those with the rivering issue have bad shocks and don't know how to inflate tires.

But, when all is said and done, you and others can continue to blame the manufacturers for all your problems, it is your tire and it certainly is your money. But one has to wonder why there are so many people out there that have never had the problem. Maybe they haven't weighed their MH's and they have just been lucky. Or maybe they have chosen to ignore conventional wisdom and inflate to the coach sticker or tire pressure marked on the tire. Or is it that they know something others don't? One has to wonder

>>>>>In the end, I have changed nothing else on my coach except the tires. I am following the Michelin inflation tables, and riding on the same shocks. Miraculously my rivering issue has gone away. The switch has worked for me, and I am now a happy camper. I average 20K miles a year, and if something turns up to the contrary I will report back.
:h