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Open Roads Forum  >  Travel Trailers  >  General Q&A

 > 16 years with no blowouts, now two in a month.

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davehultin

Fargo, ND 58104

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Posted: 08/07/21 04:13pm Link  |  Quote  |  Print  |  Notify Moderator

I figure anyone pulling a trailer will probably have a blowout at some point. I dodged the bullet for 16 years, but now I'm up to TWO blowouts. Hmmmph.

Picked up some wire on the road a month ago for the first blowout. The wire wrapped around the axel, the tire didn't have a chance. OK, that's understandable.

Yesterday we were seven miles from our destination and someone pulled up beside us on the interstate and waved us down. Not sure where yesterday's blowout came from. Driving too fast? Tire overinflated? Probably not. Damage from the wire on the last blowout that didn't show up until now? Maybe...?

Anyways, now the questions begin.

For the first repair I used the original spare tire as the permanent replacement because it's an exact match, and then got a similar tire, but 6-ply vs. 8-ply for the new spare. So far so good.

For the current replacement I was able to find a trailer tire in the town we're camping. It's also an 8-ply, but when I told the tire guys that my original tires inflated to 75 pounds, that really puzzled them. They just didn't know of any 8-ply tires that inflated to 75 pounds. Everything they saw was 65 pounds. Well, I don't have a ton of options on the road so I went with it so I could put it on tomorrow. The tire guys were pretty convinced that even though the trailer placard said 75 pounds I shouldn't inflate past 65 pounds.

OK. Back to the campground. The original trailer tires do indeed have a max inflation of 75 pounds, and are 8-ply. The newest tire has a max inflation of 65 pounds, and is 8-ply. The spare tire has a max inflation of 50 pounds (or so, I have to double-check) and is 6-ply.

I'll put the new tire into the mix (the 8-play with 65 pounds max pressure) tomorrow before we head home. What kind of trouble will I make with 3 75-lbs tires + 1 65-lb tire?


Dave Hultin
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2010 Ford Expedition, 2018 Gulfstream Cabin Cruiser 28BBS

Lwiddis

Monterey, California

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Posted: 08/07/21 04:50pm Link  |  Quote  |  Print  |  Notify Moderator

We are all dreading that next nail or piece of wire.


Winnebago 2101DS TT & 2020 Chevy Silverado 1500 LTZ Z71, 300 watt solar-parallel & MPPT, Trojan T-125s. TALL flag pole. Prefer boondocking, USFS, COE, BLM, NPS, TVA, state camps. Bicyclist14 yr. Army vet-11B40 then 11A - (MOS 1542 & 1560) IOBC & IOAC grad


time2roll

Southern California

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Posted: 08/07/21 04:57pm Link  |  Quote  |  Print  |  Notify Moderator

What size are you running? Does the 75 psi tire have the same max weight rating as the 65 psi tire? Are all the same size?


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jdc1

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Posted: 08/07/21 05:53pm Link  |  Quote  |  Print  |  Notify Moderator

My ONLY flat on my 5'er was cause by a sharp u-turn. Ripped the treads right off the casing. Tires scrubbing (term used in skip-steer usage) that hard, I realized exactly what happened.

davehultin

Fargo, ND 58104

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Posted: 08/07/21 07:29pm Link  |  Quote  |  Print  |  Notify Moderator

Sizes are all the same: ST205/75R14

Weight ratings are:
Original tires: 2200 lbs
Spare tire: 1760 lbs
New tire (the 65 lb tire): 2040 lbs

And on the placard, the GVRW lists 7660

So ... does that mean (assuming I'm not overloading the camper) that with the combined tire weight ratings of 8640 being greater than the GVRW of 7660 that I should be safe towing?

time2roll

Southern California

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Posted: 08/07/21 07:53pm Link  |  Quote  |  Print  |  Notify Moderator

Goodyear Endurance has a 2200 pound rated tire but is a bit wider at 215. Still takes 65 psi.
Seems like even the 4x 2040 giving 8160 should be fine on a 7660 GVWR trailer.

noteven

Turtle Island

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Posted: 08/07/21 07:55pm Link  |  Quote  |  Print  |  Notify Moderator

Last year was my "year of flat batteries..."

This year, apparently, is trailer clearance and signal lights. Fixin on the third one right now....

Can tires be far behind?

stickdog

Somewhere, USA

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Posted: 08/07/21 08:29pm Link  |  Quote  |  Print  |  Notify Moderator

Is this some unnamed brand? I believe the Max PSI is on the sidewall.


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rexlion

Broken Arrow OK

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Posted: 08/07/21 09:10pm Link  |  Quote  |  Print  |  Notify Moderator

Front and rear trailer axles can be loaded differently depending on the trailer's weight fore & aft and whether you use a WD hitch. So, it's not entirely as simple as adding up the 4 ratings and comparing to the GVWR. Best to weigh what each tire is carrying.


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Terryallan

Foothills NC

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Posted: 08/07/21 10:00pm Link  |  Quote  |  Print  |  Notify Moderator

davehultin wrote:

I figure anyone pulling a trailer will probably have a blowout at some point. I dodged the bullet for 16 years, but now I'm up to TWO blowouts. Hmmmph.

Picked up some wire on the road a month ago for the first blowout. The wire wrapped around the axel, the tire didn't have a chance. OK, that's understandable.

Yesterday we were seven miles from our destination and someone pulled up beside us on the interstate and waved us down. Not sure where yesterday's blowout came from. Driving too fast? Tire overinflated? Probably not. Damage from the wire on the last blowout that didn't show up until now? Maybe...?

Anyways, now the questions begin.

For the first repair I used the original spare tire as the permanent replacement because it's an exact match, and then got a similar tire, but 6-ply vs. 8-ply for the new spare. So far so good.

For the current replacement I was able to find a trailer tire in the town we're camping. It's also an 8-ply, but when I told the tire guys that my original tires inflated to 75 pounds, that really puzzled them. They just didn't know of any 8-ply tires that inflated to 75 pounds. Everything they saw was 65 pounds. Well, I don't have a ton of options on the road so I went with it so I could put it on tomorrow. The tire guys were pretty convinced that even though the trailer placard said 75 pounds I shouldn't inflate past 65 pounds.

OK. Back to the campground. The original trailer tires do indeed have a max inflation of 75 pounds, and are 8-ply. The newest tire has a max inflation of 65 pounds, and is 8-ply. The spare tire has a max inflation of 50 pounds (or so, I have to double-check) and is 6-ply.

I'll put the new tire into the mix (the 8-play with 65 pounds max pressure) tomorrow before we head home. What kind of trouble will I make with 3 75-lbs tires + 1 65-lb tire?


i would suggest that if the second flat was on the same side as the first one. then the first one caused the second one, and IF I were you. I wouldn't just put ONE on this time, as you may have driven quite a distance with just one tire on the side that blew. That damages to other tire, and it too will go flat soon. Ask me how i know? Been there done that. It would be better to replace both tires on the side that went flat.


Terry & Shay
Coachman Apex 288BH.
2013 F150 XLT Off Road
5.0, 3.73
Lazy Campers


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