We finally did it

[napria]

Just came back from picking up the Montana after the local tire store put the new G614s on. They wouldn't buy back the Marathons but we'll hopefully be able sell them privately. Out the door price, including mounting & tax was $1348.

We got the TPMS sitting brand new in its box on the kitchen counter. We were just waiting to get the G614s, but the sensors and monitor will be installed tomorrow.

The new Garmin RV GPS with backup camera arrives tomorrow. Then Sunday we're off to Florida for a week.

[CORattler]

Sounds like you made all the right choices. Now enjoy!

[DQDick]

Sounds like you're all set to go. Safe travels!

[rohrmann]

Now you can drive your rig safely, spending more time looking forward than backward in the mirrors watching for tire debris coming from your trailer. I think you will be pleasantly surprised on how well it pulls also.

[napria]

Well, now there's a bit of trouble in paradise. The kind, young manager of the tire store told us that the tires are 110 psi (which I knew). He told us that as we drive down the road the tires will heat up and the pressure will increase so they only inflated them to 90 psi. My dear husband and I are now disagreeing as to whether we should inflate them more. Guess which position I take?

[sambam]

I'm guessing you want more air. There should be 110 cold pressure. Or close to it. Some on this forum report the pressures getting to about 125psi when warmed up. That's ok. GY factors in the heat increase when they establish the rating. 90 sounds a little soft to me, but others may know better. If you're not loaded to the max weight of your trailer, you may be ok. I think I'd prefer to be a little closer to 100psi, however.

[bobcat92]

We inflate to 100 psi but others report better wear patterns when the tires are inflated to 110 psi. The rating of the tire is 110 psi cold inflation. The maximum load rating is only achieved at 110 psi.

[BB_TX]

Determine the proper air pressure the right way, by weighing your rig. Per Goodyear Because RVs can be loaded with many different configurations, the load on each tire will vary.
For this reason, actual air pressure required should be determined based on the actual load on each individual tire.
Inflation pressure should be adjusted to handle the tire carrying the heaviest load, and all tires on the axle should
be adjusted to this pressure.

Here it is straight from Goodyear. (http://www.goodyearrvtires.com/pdfs/tire-care-guide.pdf) Check the tire inflation charts. The pressure specified is to get the maximum traction and tread to pavement contact for the weight on the tire. Too much pressure and you get more contact on the inner treads. Too little pressure and you get more contact on the outer treads. Both lead to uneven wear.

[richfaa]

We tried 90/100/105 and 110si on our g614's. We thought 90 was a bit soft. Really could tell no difference with the rest of the settings. The tire chart is great but you need to know what tire is the highest psi so you can set the others the same. We can vary so we set the psi at 110 on the 13 3402 and since we are long timers we run heavy. The PSI will increase to 120/125 when on the road.

[napria]

BB_TX that's very helpful! Thank you.

Rich, as you've probably gathered from my previous posts, we use our Montana for vacations. We carry nothing in our fresh water tank, and don't load it up very much, but we do have the stackable w/d and just about every option, except for full body paint and that darn, coveted bigger shower. So we're going to run on 100 psi till we can get to a scale. Thanks for the input!

[Chip]

Did they have any trouble getting the chrome hub off the wheels. Mine are on very very tight, so much I can't get them off without damage.

[richfaa]

We have been told at the fall rally that running them at 110psi will do no harm. We are also told that the psi must be set on all tires to the highest tire load. we have been weighed three times and the high tire load was always different so we just run 110.

[napria]

quote:Originally posted by Chip

Did they have any trouble getting the chrome hub off the wheels. Mine are on very very tight, so much I can't get them off without damage.




They changed out all four tires outside the service garage, in the thunder, lightning and pouring rain in just under 90 minutes, and no one who worked on the changeout complained about anything, so I don't think so... But maybe they're just not complainers?

I brought brownies today to thank them and they were all smiles and "Have a great trip!" Really nice bunch of guys.