PDA

View Full Version : Useless spare tire...



JohnC
04-06-2012, 18:41
Had an opportunity to put my spare tire into service today. After fussing around figuring which pieces of the jack mechanism I needed to lower the thing, I discovered it has a "safety latch" intended to prevent the tire from falling on the ground should the cable break. No amount of fussing would get the tire to drop more than an inch or so and there was no way to get it off the hook. Finally, I consulted the owner's manual. Said I had to lift the tire up until the lift mechanism ratcheted, once or twice, and the latch would let go. Not! Said if that didn't work to make a rickety tripod of the wheel chocks, balance the jack on top, and push the tire up against the frame. Surely this would release the lock. Well, even lifting the tire enough to lift the back axle off the ground would not get it to release. Checked the service manual: nothing under tire, spare or spare tire...

So, I tried to discern how this bugger is supposed to work by looking through the holes in the rim, and finally decided to douse with with rust buster. After the third dousing and a lot of banging it with a hammer, and pushing it up against the frame, it finally cut loose. Of course, the tire fell on the can of rust buster and it started spraying all over the place. My chest was supporting the tire on one side, the can of rust buster on the other and the cable in the middle. No way to lift the side on the can...

Fortunately I was in the comfort of my driveway, and not on the side of the highway at night, which is where I hit the road debris that broke the rim of the wheel I was replacing. I was able to make it home without loosing the tire, but there was not much of the rim left in one spot.

The moral of the story: If you live in the rust belt, and you haven't tried lowering the spare tire recently, you might want to give it a shot at your convenience. I was ready to call Onstar...

DmaxMaverick
04-06-2012, 20:10
What caused the tire to fall on you and the can? Cable break, or what? My tire shop drops the tire and checks it and the mechanism at each rotate/balance (unless you specify otherwise). Good idea, especially in areas prone to corrosion. Around here, if I were a rust farmer, I'd be on welfare (more dust than rust).

a5150nut
04-06-2012, 20:27
Dmax,

We live a shelterd life here. . . . .

JohnC
04-07-2012, 07:14
What caused the tire to fall on you and the can?

I finally got the #$%#%& thing to release. I was lying under the tire. The tire was pivoting on the cable and resting on me on one side and the spray button of the can on the other side. I had to get out from under it (which just put more pressure on the can) so I could pull my side of the tire down to lift the other side off the can. If I wasn't so pi$$ed, it would have been comical.

"My tire shop" ? That would be me...

Last time that spare was down was late summer of 2005...

I don't think my '95 had this bastard mechanism, or if it did the operation was transparent, as I think it is supposed to be on the '06. Count me crazy, but I long for the days of bumper jacks and tire irons. I'd even put up with ignition points if I had to.

Why in God's name can't they have something that sticks out below the tire to release it? As it is, you have to push the spring seat up into the center of the mechanism, and then I think it may have a spring that pushes the latch out of the way. When the rust overcomes the spring...

(Now that I think about it, when I jacked it up, I may have had the jack on the wrong part of the mechanism. That method may have worked, however, the manual is very unclear and it is difficult to get the jack where I suspect it needs to be without pinching the cable in there.)

More Power
04-09-2012, 12:53
Sounds like an ordeal! I really dislike de-icer used on highways. They began using it around here about 10-12 years ago.

The only flats I've had on my truck were due to rotted rubber valve stems. The only flats I've had on a trailer I've owned were also due to rotted rubber valve stems. Now, I replace the valve stems (with good ones) every time a tire is replaced.

Heartbeat Hauler
04-09-2012, 18:33
Man, what a PITA that sounded like!

I too rotate my spare into the mix and I always give the cable a shot of WD-40 when I crank it back up.

DmaxMaverick
04-09-2012, 21:51
I use/request ONLY high pressure (HD, commercial) valve stems. Never had a problem with them. The off-the-shelf stems most shops use are junk on a HD truck. They may charge for them (about $2/ea extra), but it's cheap insurance. They don't rely on the external rubber for integrity. You can strip away all the exposed rubber, and they'll still stay sealed.