|
09-22-2012, 10:52 PM
|
#1
|
3 Rivet Member
2011 23' FB International
1975 Argosy 30
Santa Barbara
, California
Join Date: Mar 2010
Posts: 155
|
flat spotted tire: brake problem?
I changed my 14" goodyear marathons out today ( http://www.airforums.com/forums/f438...ml#post1206363) and noticed that one tire is flat-spotted. The tires are close to new and have just 2-3k miles on them and this one tire is worn to the wear bars in one spot. I suppose this means that the brake on that wheel is not releasing properly? Is there a way I can easily test it myself? Are there any other possible causes?
|
|
|
09-22-2012, 10:59 PM
|
#2
|
Rivet Master
2005 25' Safari
Salem
, Oregon
Join Date: Mar 2006
Posts: 8,369
|
Hi, since the tire only has one flat spot, that would mean that the brakes only locked up once. A new tire would have to have been dragged for quite a distance to wear down to the wear bars. Do you have a picture of the damaged tire?
__________________
Bob 2005 Safari 25-B
"Le Petit Chateau Argent" Small Silver Castle
2000 Navigator / 2014 F-150 Eco-Boost / Equal-i-zer / P-3
YAMAHA 2400 / AIR #12144
|
|
|
09-22-2012, 11:37 PM
|
#3
|
4 Rivet Member
1988 32' Excella
Bonita
, California
Join Date: Dec 2006
Posts: 325
|
It could also mean the tire may have a broken belt which would cause it to ware in one area while driving.
__________________
Happiness only real when shared.
Christopher Johnson McCandless
2/12/68 - 8/18/92
|
|
|
09-22-2012, 11:42 PM
|
#4
|
3 Rivet Member
2011 23' FB International
1975 Argosy 30
Santa Barbara
, California
Join Date: Mar 2010
Posts: 155
|
Quote:
Originally Posted by ROBERTSUNRUS
Hi, since the tire only has one flat spot, that would mean that the brakes only locked up once. A new tire would have to have been dragged for quite a distance to wear down to the wear bars. Do you have a picture of the damaged tire?
|
If the brake has trouble releasing or otherwise binds, wouldn't the tire always stop in the same position where the flat spot is and wear it further down?
|
|
|
09-22-2012, 11:56 PM
|
#5
|
Rivet Master
2005 25' Safari
Salem
, Oregon
Join Date: Mar 2006
Posts: 8,369
|
Quote:
Originally Posted by tvoneicken
If the brake has trouble releasing or otherwise binds, wouldn't the tire always stop in the same position where the flat spot is and wear it further down?
|
Hi, the wheel will lock up in any position and the tire would have several flat spots. To have the wheel lock up in the same place, you would have to have something like a cracked brake drum; And even then it would catch on the shoes leading edges in two positions.
__________________
Bob 2005 Safari 25-B
"Le Petit Chateau Argent" Small Silver Castle
2000 Navigator / 2014 F-150 Eco-Boost / Equal-i-zer / P-3
YAMAHA 2400 / AIR #12144
|
|
|
09-23-2012, 12:00 AM
|
#6
|
Rivet Master
2005 25' Safari
Salem
, Oregon
Join Date: Mar 2006
Posts: 8,369
|
Quote:
Originally Posted by RUMSHIP
It could also mean the tire may have a broken belt which would cause it to wear in one area while driving.
|
Hi, this is another possiblity, but I would think that a brand new tire wouldn't fail so soon. [still possible]
__________________
Bob 2005 Safari 25-B
"Le Petit Chateau Argent" Small Silver Castle
2000 Navigator / 2014 F-150 Eco-Boost / Equal-i-zer / P-3
YAMAHA 2400 / AIR #12144
|
|
|
09-23-2012, 09:27 AM
|
#7
|
Figment of My Imagination
2012 Interstate Coach
From All Over
, More Than Anywhere Else
Join Date: Dec 2011
Posts: 10,868
|
Just to make sure…
When you say a "flat spot" do you mean that the tread is visibly worn down more in that spot? Or do you just mean that the tire is just out-of-round without tread loss in that spot?
Out-of-round but without visibly increased wear on the tread is a possible indication of damaged belts. Or damaged sidewalls. Dismounting the tires and examining the inside of the tire may help determine this.
Loss of tread at one spot indicates that the brake was locked. However, that would be accompanied by skid marks where it happened, the sound of squealing as the tire dragged across the pavement, significant heat/ smoke/odor, and you would have noticed the trailer pulling to the side with the locked brake. The condition would have had to persist for a while for tread loss to be visible to the Mark I eyeball, and surely you'd have noticed it happening at the time, or other drivers on the road with you would have.
There are two other possibilities that come to mind: (1) manufacturing defect. The tire was made that way during the injection-molding process that forms the tread; or (2) The tire was stored/stacked improperly at the dealer such that it developed an out-of-round condition before it was ever put on your trailer.
__________________
I thought getting old would take longer!
|
|
|
09-23-2012, 09:39 AM
|
#8
|
Retired.
Currently Looking...
.
, At Large
Join Date: Jun 2003
Posts: 21,276
|
Quote:
Originally Posted by ROBERTSUNRUS
Hi, this is another possiblity, but I would think that a brand new tire wouldn't fail so soon. [still possible]
|
Three weeks or so ago, a new 14" ST tire installed on a new SOB failed on the way from the factory. It was not a Marathon.
__________________
Meddle not in the affairs of dragons, for you are crunchy, and taste good with ketchup.
Terry
|
|
|
09-23-2012, 10:35 AM
|
#9
|
Rivet Master
1972 31' Sovereign
Lexington
, Minnesota
Join Date: Feb 2009
Posts: 3,985
|
We found (fortuately after a couple of rounds around the block) that our new tires were rubbing against our wheel wells. Very distinctive odor! but it took a couple of times before we realized what the problem was. Our new tires are a wee bit wider than the originals, we think, and we had redone the wheel wells with the new floor. Chris had to partially cut out and reset the wheel wells by about an inch to clear everything. We had thought the noise was from the hitch and Equilizer bars......
Kay
|
|
|
09-24-2012, 12:43 AM
|
#10
|
3 Rivet Member
2011 23' FB International
1975 Argosy 30
Santa Barbara
, California
Join Date: Mar 2010
Posts: 155
|
flat spot photos
I finally got around to taking some pics of the flat spot. You can see how the tire is worn down to the wear bars, the rest of the tire is close to new...
|
|
|
09-24-2012, 12:53 AM
|
#11
|
Rivet Master
2005 25' Safari
Salem
, Oregon
Join Date: Mar 2006
Posts: 8,369
|
Quote:
Originally Posted by tvoneicken
I finally got around to taking some pics of the flat spot. You can see how the tire is worn down to the wear bars, the rest of the tire is close to new...
|
Hi, just going from what I can see in your pictures, I would say that you have tread separation. The worn area is too large for what I would call a flat spot.
__________________
Bob 2005 Safari 25-B
"Le Petit Chateau Argent" Small Silver Castle
2000 Navigator / 2014 F-150 Eco-Boost / Equal-i-zer / P-3
YAMAHA 2400 / AIR #12144
|
|
|
09-24-2012, 01:41 AM
|
#12
|
Rivet Master
2005 19' Safari
GLENDALE
, AZ
Join Date: Aug 2004
Posts: 2,453
|
If you spin this tire on the hub or a tire balancer, I'll bet you will find that it is out-of-round; i.e., oval or egg shaped, a commonly reported failure for Goodyear Marathons. You are lucky you found this before it failed while you were driving.
|
|
|
|
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
|
|
Thread Tools |
Search this Thread |
|
|
Display Modes |
Linear Mode
|
Posting Rules
|
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
HTML code is Off
|
|
|
|
Recent Discussions |
|
|
|
|
|
|
|
|
|
|
|