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Old 10-27-2017, 10:55 PM   #1
bobxyz
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Default Do spare tires need replacement?

Months ago, I saw a 940 in the salvage yard with front end damage and a blown-out mini/high-pressure spare on the front left. The front end damage looked like it came from a guard rail/concrete barrier but the damage didn't quite make it all the way to the wheel well. I'm guessing the tire blew first and caused the accident (bummer, flat tire and then later boom+crunch). So, how do I tell if my high-pressure mini-spare needs replacement? I'm guessing it's original.
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Old 10-27-2017, 11:02 PM   #2
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Just get a full size spare.
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Old 10-27-2017, 11:09 PM   #3
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If the rubber is more than 10 years old i'd replace it just in case, but that's me. Like Cwazywazy said I just keep one of the full size 14" steelies as a spare
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Old 10-27-2017, 11:23 PM   #4
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I've seen several of the 7/9 series space saver spare tires seperate. Even while just being stored.
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Old 10-27-2017, 11:45 PM   #5
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This article @ Tire Rack suggests 10 years max and 6 years for unused tires since "environmental conditions like exposure to sunlight and coastal climates, as well as poor storage and infrequent use, accelerate the aging process".
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Old 10-27-2017, 11:52 PM   #6
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About 80% of the 7/9 space savers I’ve seen are rotted, including my personal one.
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Old 10-28-2017, 12:26 AM   #7
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Originally Posted by Cwazywazy View Post
Just get a full size spare.
This

I have acquired a fifth matching wheel for each of my cars. One day when I have money (heh), Iíll install 5 matching tires and do a 5 wheel rotation like on a Jeep.
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Old 10-28-2017, 12:39 AM   #8
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About 80% of the 7/9 space savers Iíve seen are rotted, including my personal one.
I had the unfortunate experience two yrs ago when i had a flat.My spare in my wagon was the original,and it was rotten and flat. Get a wheel from the JY and get a full size tire. It fits perfectly in my wagon.
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Old 10-28-2017, 02:19 PM   #9
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I've seen several of the 7/9 series space saver spare tires seperate. Even while just being stored.
This. They all do it. I've had about 40 of them that were separating having never been in daylight since the car was built. They are built by Firestone and every single one of them is a ticking time bomb.
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Old 10-28-2017, 02:59 PM   #10
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When I bought my 94 model 940 a few years back, I check the spare (Donut) and it had exploded inside the trunk.....not from use, just from age I suppose.
I always swap the donut spare for a regular size street tire, so it wasn't a problem.
I have a lot of spare rims.

I know that it exploded inside the spare tire well because there were pieces of rubber all around it.
The one and only time I've seen this.

So yes.....the spares can fail with or without use.
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Old 10-28-2017, 03:00 PM   #11
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This. They all do it. I've had about 40 of them that were separating having never been in daylight since the car was built. They are built by Firestone and every single one of them is a ticking time bomb.
Good to know. This is one of those things that will bite me in the azz one day when I'm faced with a flat.
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Old 10-28-2017, 03:51 PM   #12
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I guess I'll be taking that firestone time bomb outta the trunk....tire looks brand new but I'll defer to those more experienced than I.
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Old 10-28-2017, 04:36 PM   #13
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A 945t of mine came with what looks like the factory donut spare. Still holds air to this day, even after sitting in a barn for 2 years installed on a project car. I would never trust one of those things driving on the road, but I keep them for spares if the car needs to sit for awhile. Full size spare is just too cheap to not have. I shudder everytime I see a car on a tiny little donut wheel driving down the freeway...
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Old 10-28-2017, 06:24 PM   #14
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I got stabbed by my failed space saver spare tire. The tread had separated and I had to reach by it to grab something and I touched the steel belt sticking out by accident. I think I want some compensation from Firestone for these dangerous failures.
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Old 10-28-2017, 07:18 PM   #15
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Tires should be taken out of service once they reach the ten year mark, eight years if it's a trailer or spare tire.
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Old 11-08-2017, 10:15 AM   #16
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So do the later model Volvos use the same lug pattern as my '89 245? Thinking of grabbing the donut spare from a late model car at the PNP.

Last edited by thismachine13; 11-08-2017 at 11:14 AM..
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Old 11-08-2017, 10:22 AM   #17
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The space saver spare in my car popped one day when I was in the car. I have a wagon, so it was especially loud. I think age, plus being properly inflated, plus baking in the heat here in South Carolina made it dry rot and fail. I put a standard steel wheel with a decent tire in there as a spare.

I also replaced the space saver with a full size steel wheel in my wife's Crown Vic after the tire failed in my car. It was another junkyard special but it has a newer tire on it. Just to be safe you know.
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Old 11-08-2017, 03:42 PM   #18
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So do the later model Volvos use the same lug pattern as my '89 245? Thinking of grabbing the donut spare from a late model car at the PNP.
A full sized tire and wheel will fit in the spare tire compartment. Get a RWD steelie or alloy - I snagged one with a tire in good condition out of the PNP. If you match sizes with your other wheels/tires you don't even have to limp after changing a flat.
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Old 11-10-2017, 12:34 PM   #19
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Just keep it at full pressure until it explodes in the trunk during the next heat wave.
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Old 11-10-2017, 12:36 PM   #20
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I've been meaning to replace the original spare in my '68 142. I'm sure I won't, and that'll be what eventually totals it.
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Old 11-10-2017, 01:27 PM   #21
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My spare in the 92 9 series once inflated to "spec" began to separate in the tread...whilst in the trunk! Folks, as a representative from the Tire Industry, I can tell you that's TOO DAMN LONG to count on ANY spare tire.

Since I run FWD rims on my DD with appropriate 25mm spacers, I just picked up a C series spare from a late 2000 vehicle. 17 inch rim which clears my brake upgrade..... and the Michelin tire still has vents on it (never seen pavement). I believe they charged me $12 from the local Pullapart. All that, and it fits nicely in the spare well. Junk those old spares!

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Old 11-10-2017, 04:59 PM   #22
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The Volvo space saver spares were made by Firestone years before and years during the Ford Explorer/Firestone tire debacle. I'm sure they didn't build Volvo spare tires with any more quality than the tires they were selling to Ford.
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Old 11-10-2017, 05:16 PM   #23
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Yeah, I went to fill my 92 original space saver spare and it had shredded it self apart. I had no idea at the mesh inside of those things could be so sharp!

Found another one at the junk yard for now.
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Old 11-10-2017, 05:25 PM   #24
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Yes those damn steel belts are sharp! Thankfully I don't recall any Volvo that had Firestone tires from the factory. Just those spares.
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Old 11-10-2017, 05:26 PM   #25
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Yeah, I went to fill my 92 original space saver spare and it had shredded it self apart. I had no idea at the mesh inside of those things could be so sharp!

Found another one at the junk yard for now.
Find a pizza cutter in the JY that's not expired and put it on the wheel.

Michelin says 10 years and the other manufacturers say less but they don't agree so they do nothing.
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