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Thread: Looking for Input about Tire Safety

  1. #21

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    Need to be careful if tires are old. Even if the thread looks good the tires can have some rot or weakness
    that can't be seen. As the tires age the rubber becomes harder and not as plyable and not grip as well as they used to.

  2. #22
    GMN Regular DerekTheGreat's Avatar
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    I go by the rot factor. If there's none of that then I'll run the tires. I wasn't planning on chancing my old crusty 1993 tires on our trip to FLA but just might. However I think I'll wise up and throw Ashley's newer summer set on for the trip. Be interesting to see what my Townie looks like with wire wheels in place of the turbines.
    1985 LTD Crown Victoria - SOLD
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  3. #23
    Member BigT's Avatar
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    Quote Originally Posted by IPreferDIY View Post
    ...Interestingly, in a moment of stupidity when I hadn't realized I could not get rubber cement into a hole that has air coming out of it, some of the rubber cement got onto some of the cracks, and now it looks like the cracks are gone in that area. If I hadn't come up with a method that might keep the rest of the rubber cement from drying out in the tube, I'd be tempted to waste the rest of it on crack repair.

    To keep the opened tube of rubber cement sealed tight, I put some slightly diluted Weldbond glue around the base of the cap. I had thought about silicone, but it would have been too much of a PITA. I'm going to pick up some spare tubes of rubber cement one of these days so I know I'll have something usable if I need it, but it'll be interesting to see if the opened one stays fresh.
    The only thing that gives you control of a car and is always in contact with the ground, are tires. If they are cracking, might be time for new tires. They are more important than most realize, so get the best you can afford.

    That being said, are you repairing this from the inside using a round patch and cement glue? Or repairing it from the outside using a rubber hunk plug and a T-tool, like a big sewing needle?

    Iíve only used cement glue for an inside repair. If the hole is too big for a rubber plug (repaired from outside), than itís time for a new tire.




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  4. #24
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    Unless a person is doing nothing but putting around town at low speed, get rid of tires over 10 years old. I have seen too many accidents that could have been prevented if the vehicle had good tires. The worst was a fatal where seven people died because of one bad tire. Speed and heat build up are the biggest factors in tire failures. I don't know if anyone remembers the Firestone 500 tires in the late 70s. They were famous in coming apart, and they were recalled. I had four fail in one day. If at all possible, use a repaired tire only as a spare. If more people checked the tire pressure regularly, less tire failures would happen.

  5. #25
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    Yes I found it amazing that Firestone actually brought back the 500 name. So many accidents. A standout amongst truly terrible tires.
    Last edited by jaywish; 12-27-2016 at 07:29 PM.
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  6. #26
    No mean-spiritedness here. IPreferDIY's Avatar
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    Quote Originally Posted by BigT View Post
    The only thing that gives you control of a car and is always in contact with the ground, are tires. If they are cracking, might be time for new tires. They are more important than most realize, so get the best you can afford.

    That being said, are you repairing this from the inside using a round patch and cement glue? Or repairing it from the outside using a rubber hunk plug and a T-tool, like a big sewing needle?

    Iíve only used cement glue for an inside repair. If the hole is too big for a rubber plug (repaired from outside), than itís time for a new tire.
    In my case, Costco wouldn't do an internal patch/plug since it was just outside of their acceptable zone. I used an external plug kit that came with rubber cement. It also has a reamer, so the size limit is up to the size of the reamer. Edit: Here's an image of the kit I got, but without the blade:
    Click image for larger version. 

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    I don't drive a lot to begin with, and I had already curtailed my driving even more due to not knowing whether my timing chain tensioner arms are being eaten away prematurely (a common problem for 2000-2003 MGMs and CVs and 2003 Marauders). I just changed the oil and didn't see any obvious problems with it, but I don't want to take my chances.

    Ideally, I'd like to have five new tires on five identical rims so I can include a spare in tire rotations. Time will tell.
    Last edited by IPreferDIY; 12-28-2016 at 01:17 AM.

    2000 Grand Marquis LS HPP, a hand-me-down in 2008 with 128,000 km; 175,000 km as of July 2014
    mods: air filter box "tuba" (in place of the "trumpet"), headlight relay harness, J-mod (around 186,350 km), 70mm throttle body, NKL4 PCM (from a 2000 CVPI, nothing great there apart from highway cruising), KYB Gas-A-Just shocks (after >202,000 km on originals)

  7. #27
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    That looks like a nice repair kit. As a last ditch effort you can try a can of Fix-A-Flat. Since most of the hole is filled by the repair kit, the can should fill in the smaller air leaks. That might let you limp around until you're ready for new tires. Good thing you aren't driving it much. I would NOT drive it at highway speeds!!!




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  8. #28
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    Quote Originally Posted by jaywish View Post
    Yes I found it amazing that Firestone actually brought back the 500 name. So many accidents. A standout amongst truly terrible tires.
    They came back as the INDY 500. Same but different. I've got a set for everything but the vomit comet. They do pretty good and I have not had any issues with any of them.
    The 742 was the tire I remember as being the firestone tire of doom. =-) https://www.youtube.com/watch?v=9YZzYAYjw3I


    Alex.

  9. #29
    No mean-spiritedness here. IPreferDIY's Avatar
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    Quote Originally Posted by BigT View Post
    That looks like a nice repair kit. As a last ditch effort you can try a can of Fix-A-Flat. Since most of the hole is filled by the repair kit, the can should fill in the smaller air leaks. That might let you limp around until you're ready for new tires. Good thing you aren't driving it much. I would NOT drive it at highway speeds!!!
    At this point, I've got the previously-unused full-size spare on the drive wheel (no trac lok), a mini-spare in the trunk (for reduced weight), and the plugged one in my kitchen. In the absence of further problems, that's how things will stay until I get replacements. The plugged one is holding air, so I guess the plug worked.

    I wouldn't want to use the canned stuff. Maybe it would have worked at the outset since the initial hole was so small, but apparently tire techs don't like working with wheels that have had that stuff put in them. I would also consider it as a less safe option than a plug that is working properly. It might have a place in an emergency kit for some people, but it's not something I'd want to bother with.

    2000 Grand Marquis LS HPP, a hand-me-down in 2008 with 128,000 km; 175,000 km as of July 2014
    mods: air filter box "tuba" (in place of the "trumpet"), headlight relay harness, J-mod (around 186,350 km), 70mm throttle body, NKL4 PCM (from a 2000 CVPI, nothing great there apart from highway cruising), KYB Gas-A-Just shocks (after >202,000 km on originals)

  10. #30
    No mean-spiritedness here. IPreferDIY's Avatar
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    I'm supposed to be going to look at a set of wheels later today (even though I have NFC where I would store an extra set). It seems like a pretty good deal, but the following photo gives me some concern:

    Click image for larger version. 

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    Right above the "E" on the left side of the photo (just before the 9 o'clock position) you can see some kind of indentation in the tire. It makes it seem like it's been damaged from hitting a curb or something. Am I right in presuming this might put the integrity of the tire into question? Any input would be greatly appreciated.

    2000 Grand Marquis LS HPP, a hand-me-down in 2008 with 128,000 km; 175,000 km as of July 2014
    mods: air filter box "tuba" (in place of the "trumpet"), headlight relay harness, J-mod (around 186,350 km), 70mm throttle body, NKL4 PCM (from a 2000 CVPI, nothing great there apart from highway cruising), KYB Gas-A-Just shocks (after >202,000 km on originals)

  11. #31
    I'm an air-conditioned gypsy gadget73's Avatar
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    I've seen a number of tires with that dimple, not sure what it is. Could just be where the belts overlap.

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  12. #32
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    Ive had a Dunlop like that before. I always wondered about it, luckily nothing ever happened.

    The tires you are looking at are 6 years old now. The set I had on my car were way older then that and I was fine.

    You would think people trying to selling things would clean them up.../rant.
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    Quote Originally Posted by DerekTheGreat View Post
    But, that's just coming from me, this site's biggest pessimist. Best of luck

  13. #33
    No mean-spiritedness here. IPreferDIY's Avatar
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    I suppose if there's no sign of external trauma, it must be benign. Thanks for pointing out the date code. I hadn't gotten around to looking up how to find it until you pointed it out.

    The seller says he just hurt himself under his car, so things are on hold (after I cleared out my trunk FFS). Not sure how this is going to unfold.

    2000 Grand Marquis LS HPP, a hand-me-down in 2008 with 128,000 km; 175,000 km as of July 2014
    mods: air filter box "tuba" (in place of the "trumpet"), headlight relay harness, J-mod (around 186,350 km), 70mm throttle body, NKL4 PCM (from a 2000 CVPI, nothing great there apart from highway cruising), KYB Gas-A-Just shocks (after >202,000 km on originals)

  14. #34
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    The badyears on my work truck have that (they are only a few months old). Just the way the tire is made.

  15. #35
    No mean-spiritedness here. IPreferDIY's Avatar
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    Good to know. I doubt I'll see those ones though. Here's the chronology:

    - initially listed set of tires with HPP rims for $240 (Canadian), seemed too good to be true, no response to my initial message
    - price increased next day to $290, I sent another message indicating I was still interested
    - call from him wanting to meet at a gas station in too short of a timeframe before he picked up his wife; who the f--- brings a set of wheels to a gas station?
    - he was supposed to call back at 6 pm, I went to a bank machine for money and cleared out my trunk
    - he didn't call so I called him ~6:20 pm but didn't leave a message, he sends an email 10 minutues later claiming he hurt himself
    - listing is removed later that night though he still has other listings

    Win some, lose some I guess.

    2000 Grand Marquis LS HPP, a hand-me-down in 2008 with 128,000 km; 175,000 km as of July 2014
    mods: air filter box "tuba" (in place of the "trumpet"), headlight relay harness, J-mod (around 186,350 km), 70mm throttle body, NKL4 PCM (from a 2000 CVPI, nothing great there apart from highway cruising), KYB Gas-A-Just shocks (after >202,000 km on originals)

  16. #36
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    Gotta love people.
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    Quote Originally Posted by DerekTheGreat View Post
    But, that's just coming from me, this site's biggest pessimist. Best of luck

  17. #37
    GMN Regular DerekTheGreat's Avatar
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    Quote Originally Posted by gadget73 View Post
    I've seen a number of tires with that dimple, not sure what it is. Could just be where the belts overlap.
    This. I think the tires on Ashley's Mark VII are doing that but no problems or blowouts yet.
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  18. #38
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    It's a mold mark from where the tires were formed in the mold, looks like shit but it ain't dangerous. I first noticed 'em on a set of tires on the '94 rims I bought (to put winters on) from the guy who was demo-derbying it had those, if the belts were broken, it wouldn't be on all four tires and it would shimmy like hell, probably.
    ,
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  19. #39
    No mean-spiritedness here. IPreferDIY's Avatar
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    I ended up getting those wheels after all. I got an email Sunday saying he relisted them the day before and asking if I was still interested. I sent him a reply but didn't hear back, so I called him Monday morning and met him at his desired gas station, for 'security reasons'. He's an older guy, probably eastern European. He apparently bought the car fairly recently but said he ran into too many issues with it and has given up. I didn't bother asking about his alleged accident, but he volunteered that another buyer had an Acura or something and was given the opportunity to try putting a wheel on but found it didn't fit.

    He was only asking $280 this time. Two tires were 7/32" consistently, one was 7/32" except for one edge at 6/32", and the other was only 5/32" consistently. Only one has a 3411 date code. The other three are 2911. The rims and center caps (from a 2001) seem to be in better shape than my year-round ones (on a 2000), so I guess the fact that he's selling winter wheels too means these ones didn't see many winters, if any.

    In retrospect, I probably should have tried to talk him down to $260 based on the one tire being 5/32", but meh. His price was comparable to the lowest U-pull yard price, and there's not much chance of finding a decent set at a U-pull yard around here. And if I use my full-size spare until the others get to 5/32", the age will probably become more of an issue than wear. The cracking on the sides of my 13-year-old tires is definitely at the point of being worrisome, and I'm still at 4/32". If all goes well with my timing/camshaft/intake stuff (presumably in the spring), then I'd feel comfortable about investing in decent tires.

    Thanks for all the input!

    2000 Grand Marquis LS HPP, a hand-me-down in 2008 with 128,000 km; 175,000 km as of July 2014
    mods: air filter box "tuba" (in place of the "trumpet"), headlight relay harness, J-mod (around 186,350 km), 70mm throttle body, NKL4 PCM (from a 2000 CVPI, nothing great there apart from highway cruising), KYB Gas-A-Just shocks (after >202,000 km on originals)

  20. #40
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    Glad it all worked out buddy. Driving on sketchy tires is never a good idea. My brother is the worst when it comes to that and we've had bad experiences on multiple occasions because of it. The most noteworthy was having the right front tire blow while going through a fast left-hand sweeper at about 50mph. We went straight at that point, right into a bunch of poles. The mustang didn't win that battle and neither did we. Years later his truck ate a tire and stranded us in the middle of shitty downtown LA. I try not to ride with him much anymore.

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