Blowouts

ozarkt165

Seaman
Joined
May 18, 2010
Messages
63
Passed 10 boats and 1 camper in a hundred mile stretch of interstate. Every single one had a shredded tire... Assume inflation issues, dry rot maybe. Only 93 degrees today. Sucks to be them. Not a good way to start the weekend. Hope all made it to there favorite body of water w/o further incident. Been there myself.
 

bruceb58

Supreme Mariner
Joined
Mar 5, 2006
Messages
30,588
Re: Blowouts

Don't use old tires(6 years or older), keep tires inflated to proper pressure and replace if you think you may have damaged a sidewall by hitting a curb or other object.
 

Rocky_Road

Lieutenant Commander
Joined
Oct 8, 2008
Messages
1,798
Re: Blowouts

I traveled across state once to pick up a used boat and trailer. I didn't make it even 50 miles from the cash exchange....

The shredded tire on my "new" trailer was an auto tire, and the tread seperated without losing any of it's air. I had a new spare to use (trailer tire) and made the rest of the trip fine.

The other tire on the trailer was also a car tire, and that was quickly corrected. There IS a difference between a trailer tire and a car tire, and I will carry this lesson to my watery grave!

Happy boating!
 

JimS123

Fleet Admiral
Joined
Jul 27, 2007
Messages
8,246
Re: Blowouts

A few years ao when coming back from vacation I was approaching an 18 wheeler getting ready to pass. Just as I put the turn signals on he blew a rear tire and the shrapnel came back at me. I swerved and went over the debis, it went between my car's tires and hit the bottom of my car, but when it came out the back it flew to the side and my trailer tire went over it. It literally blew the tire off the rim. I was last in line of my family caravan, so I had to change the tire by myself.
 

Boss Hawg

Lieutenant
Joined
Apr 9, 2009
Messages
1,433
Re: Blowouts

Passed 10 boats and 1 camper in a hundred mile stretch of interstate. Every single one had a shredded tire... Assume inflation issues, dry rot maybe. Only 93 degrees today. Sucks to be them. Not a good way to start the weekend. Hope all made it to there favorite body of water w/o further incident. Been there myself.

That adverages about 1 in every 8 miles :confused:
Little far fetched :rolleyes:
 

Carusoswi

Seaman Apprentice
Joined
Jun 13, 2009
Messages
36
Re: Blowouts

I can't say that I really agree with most of the sentiment here, although it makes for good reading. I bought my boat and trailer back in '93. Both have spent that time either sitting outside or being pulled behind my vehicle (ok, the boat gets to take a bath from time to time when it is in use on the water).

The tires on my trailer are original, and I have experienced no problems with either.

I, too, have seen motorists along side the road with flats, either on their cars (more frequently) or on their trailers.

If there is a difference between a trailer tire and an auto tire, my bet would be that more technology and better materials go into the auto tire. After all, those tires have to stand up to heavy and varied stresses, what with being driven in all types of weather over all sorts of roads, on the wheels that do the steering or those that transfer the engines energy to the road (or, in these times, both steering and transfer at the same time).

. . . and I suspect that what is being described here as a blow out, such as the truck incident or the throwing of the trailer's tread, is the result of the widespread use of re-treads by trucking concerns and rental companies.

I lease a Penske van for my company, and, during a trip to NYC with my daughter at the start of one of her college years, I hear this loud bang against some part of the truck, followed by a loud rubbing sound.

I pull over to investigate and find that the left rear tire has thrown its tread which is now wedged between the wheel and the fender of the truck. I pulled it out, and carefully proceeded to drive some twenty miles to the nearest exit of the NJ Turnpike, got off and found the nearest tire outlet.

I had them replace that tire with a new tire - not a re-tread.

You should have heard the boys at Penske complain when I presented them with the bill. "Why did you not purchase another re-tread?" they wanted to know.

It is obviously a huge cost-saving measure practiced by this otherwise pristine and well-run company.

All that left-behind rubber you have to watch for on the freeway is the result of the same practice used by most trucking companies for the tires they install on their semi-trailers.

Actual tire bodies are made very well these days. I would bet that few actually blow out.

. . . and I feel there should be consequences for truckers who allow shed treads to dangerously litter our roadways.

As for trailer tires, I'm guessing that if you install a half decent tire to begin with, avoid retreads, and pay just a little attention to the tire pressure, you should experience few of these roadside standings.

I grew up exploring America's highways with my parents who were always taking us to some far-away vacation spot in this or that station-wagon pulling some sort of trailer, either a boat loaded with camping supplies, or, in later years, a camping trailer loaded with a boat.

We did experience flats, but they generally involved tires that were brand new run at the correct pressure. In most of those situations, we either bought tires and were later reimbursed by the tire company, or, in a few instances, were able to find a dealer who could make the exchange on the spot.

I don't ever remember a tire actually blowing out, and never one that disintegrated.

I see many drivers on the freeway with flats who don't seem to realize that you can't drive a flat tire 10 more miles to the nearest exit/gas station.

That will destroy a tire, perhaps the rim as well, and may end up leaving some debris on the highway.

I'm not in the tire business, but I'd have to say that that industry is one example where one really gets his/her money's worth. It's a pretty mature industry that puts out an incredibly tough product that, for most of us, really performs reliably.

I'm not certain why auto tires are knocked as unsuitable for trailers, but it really doesn't matter to me. I don't think I could find an auto tire small enough for my trailer unless I picked up some go-cart tire somewhere.

Happy boating.

Caruso
 

Lion hunter

Lieutenant Commander
Joined
Apr 9, 2005
Messages
1,529
Re: Blowouts

I think the issue is the quality of tire that goes on new trailers. Most manufacturers use the cheapest bulk buy junk they can get, or people buy the cheap tire/wheel combos for $50. Great for a spare but no so much for constant use. Not saying to run out and buy new ones but if you have a new camper or boat trailer I'd at least expect a blowout. I have yet to have a blow out on a aftermarket tire.
 

bruceb58

Supreme Mariner
Joined
Mar 5, 2006
Messages
30,588
Re: Blowouts

I can't say that I really agree with most of the sentiment here, although it makes for good reading. I bought my boat and trailer back in '93.

The tires on my trailer are original, and I have experienced no problems with either.
You are driving around on 17 year old tires and you are advocating this as good practice?
 

ozarkt165

Seaman
Joined
May 18, 2010
Messages
63
Re: Blowouts

K for any doubters i should of been more specific. This was a 200 mile roundtrip and approximately 4 hours driving. At one point there were 2 boats within 200 yards of each other, both east bound. The title blowouts was used as an eye catcher. I couldn't believe it myself, hence the post. Most tires that go flat while driving will develop interior sidewall damage before it shows on outside of tire. So i assume that is usually the case, hence the term shreded. For their sake hope they were caught before losing all pressure. Some new tires are even several years old when ya buy them. DOT requires manufacture date code. You can never go wrong w a 6 ply trailor tire vs a 4 ply auto tire. Might want to let some air out of your tires and see how bad they are cracked if they are that old. Dry rot or checking can look minor when inflated, very deep when uninflated.
 

JimS123

Fleet Admiral
Joined
Jul 27, 2007
Messages
8,246
Re: Blowouts

You are driving around on 17 year old tires and you are advocating this as good practice?

I can't speak for the other poster, but it would be my guess that he wasn't trying to specify a good practice, but rather explaining that maybe everything isn't all that black and white all the time. My trailer is a 1984 and it is running the original tires as well.

Some things require periodic maintenance after X years of service, other parts after Y hours (miles) of usage. But look at any owners manual and you'll see that third group of items that require "inspection" at specified intervals.

Take a new boat and leave it uncovered in the sun, rain and snow all year long and the specified maintenance intervals will not be good enough. But, garage keep it and use it lightly and the parts will all last longer.

As an example, I inspect my impeller every 100 hours. It always looks good, but I replace it anyway since the part is cheep enough, and after pulling it all apart it makes no sense to put the old one back in.

But tires and other external parts are easily inspected visually. If the tread is deep and even and the sidewalls are not cracked and they hold air all year long maybe they got another good year in them.

In 40+ years of boating I've had only 4 tire failures. Only 1 was a blowout. All were Taiwan tires and all happened within a year of buying them new.
 

45Auto

Commander
Joined
May 31, 2002
Messages
2,842
Re: Blowouts

Jims123 said:
My trailer is a 1984 and it is running the original tires as well.

maybe they got another good year in them.

:eek::eek::eek:

Glad I don't live near you. If you take out someone elses' family on the road when your tire blows, hopefully they'll agree with your attitude about preventive maintenance.

Among the factors that influence tire performance is how recently the tire was crafted. Just like Budweiser beer, tires bear a "born on" date. Imprinted on one or both sidewalls is an alphanumeric code of a dozen or so letters and numbers that begins with "DOT." Tires produced starting in 2000 have a four-digit birth date code at the end of the DOT number. The first two numbers indicate the week, and the last two the year. So, for example, a DOT number ending in 0205 means the tire was produced the second week of January 2005.
This date is important because rubber deteriorates with age. A tire that's been in service for five or six years should be replaced regardless of tread depth. Cut a year or two off that for vehicles that are not garaged during the day or are run in areas of high ground-level ozone.

From:

http://www.intellichoice.com/carBuying101/GripOnTires

A little more info on trailer tires here:
Speed
  • All "ST" tires have a maximum speed rating of 65 mph.
  • As heat builds up, the tire's structure starts to disintegrate and weaken.
  • The load carrying capacity gradually decreases as the heat and stresses generated by higher speed increases.
Time
  • Time and the elements weaken a trailer tire.
  • In approximately three years, roughly one-third of the tire's strength is gone.
  • Three to five years is the projected life of a normal trailer tire.
  • It is suggested that trailer tires be replaced after three to four years of service regardless of tread depth or tire appearance.
Mileage
  • Trailer tires are not designed to wear out.
  • The life of a trailer tire is limited by time and duty cycles.
  • The mileage expectation of a trailer tire is 5,000 to 12,000 miles.
http://www.discounttire.com/dtcs/infoTrailerTireFacts.dos

and here:

3 to 5 years is the average life expectancy of a Trailer Tire. After three years you should consider replacing your Trailer tires with new ones even if the tires have adequate tread depth left. After five years Trailer Tires are considered worn out and should be replaced.

http://www.boatwheels.biz/trailer_tire_poster.pdf


Tires, like other rubber products, have a limited service life. Over time, a tire's internal structure degrades, reducing adhesion between the belts, which in turn facilitates tread separation. This internal degradation occurs regardless of tread use and wear. It is invisible and cannot be discerned, even by tire experts, without destructive testing.
From:

http://goliath.ecnext.com/coms2/gi_0199-4187033/The-invisible-danger-of-aging.html


Jims123 said:
But, garage keep it and use it lightly and the parts will all last longer.
Actually, one of the worst things you can do to your tires is to "use them lightly". Tires have waxes added to the rubber to protect them from ozone that are constantly brought to the surface as a tire flexes during use. In a lightly used tire the ozone eats away the wax and begins deterioriating the tire. It dries out the rubber and reduces its' flexibility (leading to tread separation) even though you don't see any cracks.
 

Bob's Garage

Chief Petty Officer
Joined
Apr 10, 2008
Messages
590
Re: Blowouts

Discussions about trailer tires always brings out a varied number of expert opinions that are seemingly based on their personal experiences. These experts seem to feel the need to determine what others should do, or not do, without regard to the actual facts.

Everyone is towing a different trailer/boat combination. Even if it is the same brand trailer, boat and tires, the odds are that they would be set up different, which can have a large effect on the tires.

Caruso likes to decide that everyone should have his experience but forgets that very few people here are towing a canoe. It is enough that he share his experiences without expecting everyone to share his results. Sorry Caruso, but in this case you are wrong.

Trailer tires experience very different stresses on their lives than passenger tires, truck tires may suffice as replacements as they are stronger.

Just because a passenger tire, or any other type of deviation from normal safe accepted practice, does not lead to a problem for the practitioner, does not mean it is safe or acceptable.

I think that everyone should carry a spare at the very least, but few actually do. Why not? I carry 2 as I have a tandem axle, I also carry extra bearings, caps, grease etc. Some folks carry spare hubs.

These are good practices but no one seems to come on here and deride others for not following suit. Why not?

I watch my tires, constantly check the pressure before each trip, monitor their wear patterns and still I run over an occasional nail or other debris.

When you are carrying a heavy load, the tires are easily damage just because they are carrying the full weight of the boat/trailer/gear.

That's life.
 

bruceb58

Supreme Mariner
Joined
Mar 5, 2006
Messages
30,588
Re: Blowouts

My trailer is a 1984 and it is running the original tires as well.
OK...this is beyond words!

I am sure there are many out there that can get away with stuff like this. There are people that never go to the dentist or brush there teeth and never get a cavity. For the other 99.9% of the people who aren't willing to risk this and the like to be preventive rather than risk their own lives/property and those around them do different.
 

bigdee

Commander
Joined
Jul 27, 2006
Messages
2,667
Re: Blowouts

There was no mention of correct inflation. This is the key....you have to inflate to the MAXIMUM pressure that is stamped on the tire. Trailer tires are not designed to flex,they have to be inflated enough to remain rigid. Most trailers don't have shock absorbers so an under inflated tire will take a "flex beating" Some may think that high pressure will increase the chance of a blow-out when just the opposite is true. A tire that is under-inflated will act like a pump every time you hit a bump it causes a pressure spike which causes unsymmetrical tire flex.
 

109jb

Lieutenant Commander
Joined
Jul 15, 2008
Messages
1,590
Re: Blowouts

I use trailer specific tires on my tandem axle trailers but have used auto and light truck tires on single axle trailers reducing the maximum permissible load by 10% from the sidewall rating. This practice is actually accepted by tire manufacturers and links to tire maunfacturer data showing this has been posted on this site many times by myself and others. The reason that I only use trailer tires on the tandem trailers is because of the increased sidewall loads when making sharp turns. Trailer tires have stiffer sidewalls, less contact area, and less traction and for these reasons hold up better during sharp turns on a tandem trailer.

Also, if you ever see multiple vehicles on the side of the road within 200 yards of each other you can pretty much bet there was something in the road that they both didn't/couldn't avoid that got them both. This happened to me several years ago on I-294 in Chicago when a car in the left lane hit a 6"x6"x12" wood block and threw it right in front of my truck. I missed it with the truck but it hit the tire of the snowmobile trailer I was pulling. Before it was all over there were 5 cars on the side of the road within about 1/4 mile. I don't suspect that there were any tire deficiencies in that group.
 

oldjeep

Admiral
Joined
May 17, 2010
Messages
6,455
Re: Blowouts

I think that you'll find that tires last a lot longer in the north than they do in the south. I've been amazed at how quickly tires seem to disintigrate down in Florida, while 20+ year old tires in MN will be in decent shape. My dad says that in Naples that the rubber soles of his shoes even fall apart in under a year.

It also makes a huge difference if the tires are sitting outside in the sun all the time or stored inside in a garage.
 

tuffshot

Petty Officer 3rd Class
Joined
Jul 20, 2010
Messages
76
Re: Blowouts

With tires you never know. I bought my new to me boat last week, had a blow out after traveling approx 60 miles with less than 15 to go. Before I left the previous owners house, I looked at the tires they were showing some dry cracking but not bad. The tread was good and they were not the origional tires.
Filled to the proper pressure and headed home.

When the tire blew it blew across the tread and the tread seperated and bent the heck out of the trailer tag and back side of the fender was bent into the wheel well. Put on the spare to get home but went and got 2 new tires the next day.
 

bruceb58

Supreme Mariner
Joined
Mar 5, 2006
Messages
30,588
Re: Blowouts

Trailer tires take a beating because of the lack of much of a suspension. At least for me, the tire failures I have are always the front right tire on my tandem trailer. This would make sense since most of the potholes are near the shoulder and the front right tires gets the brunt of the hit.

I put thousands of miles on my trailer and go through areas where there aren't any tires stores for me to replace my damaged tire. Don't need to ruin my trip due to running around on old tires on their last legs.
 

Carusoswi

Seaman Apprentice
Joined
Jun 13, 2009
Messages
36
Re: Blowouts

Caruso likes to decide that everyone should have his experience but forgets that very few people here are towing a canoe. It is enough that he share his experiences without expecting everyone to share his results. Sorry Caruso, but in this case you are wrong.

Except that you state that ?in this case you are [am] wrong, I would not be certain whether your post is intended to echo support or rebut what I was trying to say. For certain, I did not, in my previous post, impose any decisions upon anyone else posting in the thread, and, while I don?t tow barges, my rig, when loaded for camping, is certainly more than a canoe, and, besides, the weight is all relative. A trailer rigged to tow a canoe will likely have tires designed with that load in mind. Yes, tow that canoe on a trailer designed to tow a tall ship, and there would be little stress on the tires (or other trailer components).

?It is enough that he share his experiences? -- you are bothered because I share my experiences? Why?

?without expecting everyone to share his results? -- where in that post do I state that I expect everyone to share my results?

I don?t see where trailer tires are subjected to forces beyond those to which auto tires are subjected during normal use, and have yet to read anything in this thread to convince me otherwise, and my previous post stated as such.

If you think I am wrong, fine. You are entitled to your opinion.

You would probably be skeptical of my auto experience, as I am driving a car that is as old as my trailer, just rolled over 370k miles, running its original, non-rebuilt engine, on its second set of brakes, and I typically get 100k out of a set of tires.

I don?t expect to run across many who share that same experience . . . and it doesn?t make me, my car, my brakes, or my tires better than the next guy?s. I don?t decide that you should share my experience or that your experience should mirror mine.

. . . but my experience is my experience . . . and other?s could share it if they chose to set up their rigs similar to mine, drive them in a manner that is similar to the way I drive mine.

Now, mind you, everyone wouldn?t care to drive my setup, or drive it as I do. I certainly realize that, so I am not setting my experience up as definitive. I don?t claim it to be superior to yours or anyone else?s.

OTOH, I don?t think it fair for you to marginalize my experience just because it doesn?t mirror yours, and, personally, it is my opinion that, if your rig is set up correctly, it shouldn?t much matter whether you are towing a canoe or a steam ship, correctly maintained tires will probably not just blow out. Conversely, a rig setup improperly may very well blow tires, and, again, it matters little whether you are pulling a canoe or a steam ship.

I read these threads for enlightenment as well as enjoyment, and I respond for the same reasons. My posts are not intended or represented to be definitive, but they are my opinions based upon my experiences and observations. You are free to agree, disagree, buttress or rebut what I say.

Happy boating (and towing)
Caruso
 
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