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Archive for December, 2008
REGROOVEABLE DRIVE TIRES
Posted by FLOYD from CLAY CITY, KY, US on December 25, 2008
TIM:
WHAT IS “REGROOVEABLE” IS IT A COST SAVING IDEA? I HAVE 8 G372 24.5 LP TIRES @ 3/32 CAN THEY BE REGROOVED? IS SO, WHO DOES IT?
TKS FLOYD
Although many tires are marked as "regrooveable", it is really only a common practice in the transit bus portion of the truck tire market. Not many people know how to do it properly and most of those are in the transit bus tire business.
Goodyear G670RV (size 245/70R19.5)
Posted by Ralph from Bonita Springs, FL, US on December 20, 2008
Dear Tim,
We are contemplating purchasing a 2003 Rexair motor home 36′
The coach has 33,000 original miles, so those the tires. Motor home has been kept in a airconditioned barn - When not in use since it was 1 year old. The present owner believes that the tires are in perfect condition, since they have been kept out of the weather for the most part. I am concern for safety, separation, cracks if any. Can you suggest what I should do in this case.
If the motorhome has been kept in an air conditionsed barn when not in use, I would say the previous owner had done all he can do to keep the tires "fresh". If you are still conserned, I suggest you have the tires inspected by a tire dealer you know and respect. This would be a dealer you would not expect to tell you you need new tires just to make a sale.
Air Loss in front tires
Posted by James from Brazoria, TX, US on December 15, 2008
I have G169 RSA 275/70 R22.5 on my rv and In the winter time when park in my garage the from tires leak down to about 50 lbs of air. I noticed this happened one time last year and it has happened 3 time this year already. It does this only when the temp is in the 30’s and 40 degree. The tires are on a 2003 Holiday Rambler Endervor motor home.It is does not leak out of the dual rear tires.Can you tell me what is going on and what do I need to do fix it.
Thanks James
I'm guessing that you have a slow leak that is probably from the valve stem or they may not be mounted properly and they are leaking around the bead. There is a chance that there is a small puncture in each tire but, that is unlikely. Take the vehicle to a tire professional (dealer) and have him check for leaks.
Sidewall Cracking
Posted by Joe from Sioux Falls, SD, US on December 11, 2008
The steer tires on my Volvo 610 truck 5 years old and are cracking. These cracks begin near the rim and run the entire circumference of the tires in about a 1 inch band. The cracks appear to be getting larger. This truck pulls a large RV (5th wheel trailer) and does sit for months at a time in RV parks in Tucson, AZ during the winter months. I do not cover the tires. I assume that the cracking is a result of ultraviolet rays and not a mechanical problem. My Question: At what point should one be concerned about the size of sidewall cracks? Is there a rule of thumb on this subject? The tires do not leak air. Thanks - Joe
A radial tire service manual recently published by the TMC (Technology and Maintenance Council of the ATA) suggests that if weather checking on the sidewall of a tire is more than 2/32's of an inch deep, the tire should be removed from service. Your assumption about the cause is most likely correct. Long exposure to direct sunlight can cause this condition to occur.
245/70R19.5 vs 8R19.5
Posted by danny from west monroe, LA, US on December 11, 2008
Can you mount 245/70R19.5 tires on rims that came with 8R19.5 and what is the difference between these two tires?
The only approved (Tire and Rim Association) rim width that is common to both sizes is 6.75". If your rims are 6.75: wide, you are OK otheriwise, no. The differences between the tires are many. The 8R19.5 is a tall and narrow but the 245/70R19.5 is short and wide. The wider 245/70R19.5 might rub suspension components or a fender. They have different load carrying capacities and recommended inflation pressures.