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JW Apostate
Join Date: May 2004
Location: Napa, Ca
Posts: 14,164
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Why do trailer tires fail?
Face it, they fail early and often.
What gives? KT
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'74 914-6 2.6 SS #746 '01 Boxster |
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11-05-2010, 09:03 PM
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Snow tires.
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Make sure to check out my balls in the Pelican Parts Catalog! 917 inspired shift knobs. '84 Targa - Arena Red - AX #104 '07 Toyota Camry Hybrid - Yes, I'm that guy... '01 Toyota Corolla - Urban Camouflage - SOLD |
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11-05-2010, 09:10 PM
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JW Apostate
Join Date: May 2004
Location: Napa, Ca
Posts: 14,164
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Sunnavah...
KT
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'74 914-6 2.6 SS #746 '01 Boxster |
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11-05-2010, 09:16 PM
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my guess would be some combination of heat, load, and design
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Chris the more i learn, the less i know |
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11-05-2010, 09:23 PM
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Registered
Join Date: Jun 2003
Location: Calgary Alberta, CANADA
Posts: 2,113
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Cheap and crappy materials. Those with real car wheels are much-much better.
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We're all in the gutter,but some of us are looking at the stars. -Oscar Wilde |
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11-05-2010, 09:35 PM
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A couple of weeks ago I took out a new to me 5th wheel trailer and was concerned about the heat on the tires. made it there but had three blow outs on the way home. the same thing happened to me on my 944 that used to sit a lot, I autocrossed it one day, four flat tires that evening. Old tires+heat cycling= junk tires.
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A nose heavy airplane flies poorly, a tail heavy plane flies once. |
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11-05-2010, 09:41 PM
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Cogito Ergo Sum
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We run trailer rated tires and religiously check pressures. We have cut blowouts down dramatically and we run at least several hundred miles a week pulling a trailer of some flavor.
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11-05-2010, 10:13 PM
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Cheap tires,low air pressure,too much weight.
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Pete 79 911SC RoW "Tornadoes come out of frikkin nowhere. One minute everything is all sunshine and puppies the next thing you know you've got flying cows".- Stomachmonkey |
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11-06-2010, 04:08 AM
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canna change law physics
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Go get some larger, higher rated tires, if they will fit. I did this for my utility trailer and never had a blow out since.
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James The pessimist complains about the wind; the optimist expects it to change; the engineer adjusts the sails.- William Arthur Ward (1921-1994) Red-beard for President, 2020 |
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11-06-2010, 04:38 AM
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Tires need to be used on a regular basis. The act of rolling under load protects the tires from ozone damage, etc. Tires that sit for extended periods aren't going to fare nearly as well as tires used constantly.
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Mike 1976 Euro 911 3.2 w/10.3 compression & SSIs 22/29 torsions, 22/22 adjustable sways, Carrera brakes |
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11-06-2010, 04:40 AM
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MAGA
Join Date: May 2004
Posts: 10,769
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Heat which is generated by running low tire pressures is the usual culprit. Most folks do not think to check their seldom used trailer tire presures.... I do EVERY time I use a trailer.
I run 80 psi in my homebuilt double JetSki trailer tires which are loaded within 50 lbs of the max weight rating. When I first used this setup at highway speeds on a 90 degree summer day, I stopped often to check tire temps with a digital thermometer... temps never climbed above about 100 degrees. This particular set of tires were left overs I brought from work 15 years ago when we built a custom tire mounting machine for a customer. They had been been in my attic for over 10 years before I put them into service several years ago on my JetSki trailer. They will not get replaced until they show signs of dry rot cracking on the sidewalls.
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German autos: '79 911 SC, '87 951, '03 330i, '08 Cayenne, '13 Cayenne 0% Liberal Men do not quit playing because they get old.... They get old because they quit playing. Last edited by Tim Hancock; 11-06-2010 at 05:04 AM.. |
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11-06-2010, 04:58 AM
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Registered
Join Date: May 2005
Location: Macedon, NY
Posts: 307
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Tire pressure. Tire Pressure. Tire Pressure.
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Jim '85 911 Carrera-#008 '23 GMC 2500 AT4 _________________ |
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11-06-2010, 05:08 AM
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On the subject of tires....
I checked the mileage on my Peterbilt drive tires on the way back from Ga. the other day. 320K + and i think i'll make it thru another winter on them. I check pressure regularly, have rotated them 3 times. I run Michelin's on truck and trailer (have for 25+ years) They're pricey (over $400 a piece) but worth it in the long run.
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Pete 79 911SC RoW "Tornadoes come out of frikkin nowhere. One minute everything is all sunshine and puppies the next thing you know you've got flying cows".- Stomachmonkey |
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11-06-2010, 05:57 AM
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Non Compos Mentis
Join Date: May 2001
Location: Off the grid- Almost
Posts: 10,594
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Most trailers sitting on the side of the road because of a failure have those tiny 12" or 13" wheels. They have to spin so much faster than the tow vehicle's wheels that the bearings also get overheated. Between hot bearings and underinflated tires, trouble is to be expected.
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11-06-2010, 06:29 AM
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Platinum Member
Join Date: Jul 2001
Location: Leave the gun. Take the cannoli.
Posts: 20,945
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+1 on Tire pressure. Also curb rash is higher on trailers, as are the side loads when turning a trailer backing up. In my experience, if 1 tire blows on a multi-axle trailer(loaded), the remaining tire is overloaded, and I have found its life greatly reduced.
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11-06-2010, 06:57 AM
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Registered
Join Date: Nov 2004
Location: Charleston, SC
Posts: 2,357
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Tire pressure + infrequent use = bad combo
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'87 924S (Sold) |
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11-06-2010, 06:59 AM
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Registered
Join Date: Feb 2007
Location: New York, NY USA
Posts: 4,269
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Quote:
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11-06-2010, 07:24 AM
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Moderator
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- Tire pressue
- Dry rot (for those who don't use their trailer more than 2-3 times a year) - UV damage due to extended exposure to sun. (Get those 20 dollar wheel covers you see on RV wheels) - Extra weight due to load. They will all affect tire life. -Z-man.
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2010 Cayman S - 12-2020 - 2014 MINI Cooper S Coupe - 05-17 - 05-21 1989 944S2 - 06-01 - 01-14 Carpe Viam. <>< |
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11-06-2010, 08:13 AM
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Tires need to be used on a regular basis. The act of rolling under load releases flex compounds into the rubber, w/o these released compounds dry rot and UV damage are accelerated.
add poor air pressure control to the list and they will fail prematurely. tire treatments like 303 do help some but it's only a surface treatment, the internals still need regular exercise to keep them flexible
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Bill Verburg '76 Carrera 3.6RS(nee C3/hotrod), '95 993RS/CS(clone) | Pelican Home |Rennlist Wheels |Rennlist Brakes | |
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11-06-2010, 10:19 AM
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JW Apostate
Join Date: May 2004
Location: Napa, Ca
Posts: 14,164
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Thanks for the thoughtful posts.
I use this trailer quite a bit and am good about checking the tire pressures. Two to three trips a month. The one up to this is America's Tire Company offers a six year replacement certificate on trailer tires as long as there is a certain tread depth left or the tire is less than six years old. So, it's just a matter of rotating the new tires onto the trailer. KT
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'74 914-6 2.6 SS #746 '01 Boxster |
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11-06-2010, 10:51 AM
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1984 Porsche Targa 3.2L
1979 Porsche 911SC
1986 Porsche 944 2.5l
1979 Porsche 911SC
1970/1982 Porsche 914-6/911SC 2.7 RS
1976 Porsche 911
1989 Porsche 944S2 3.0l 16v 4cyl
BB
1976 Porsche Carrera 3.0
1995 Porsche 993 Carrera Coupe
