Date: Thu, 12 Dec 2002 21:42:12 +0100 From: Robert Brown <rjbnopsamripnetvvv.se> Subject: Re: leaky snowtires
tom reingold wrote: > I have a 1995 Saab 9000CS. I put on Hakkapeliitta Q's (185/65R15) every > winter, on steel rims. They leak really badly. My mechanic doesn't > find anything. Maybe when I take a turn, the bead is lifted off the rim > momentarily? Is that possible? Sometimes, I have to fill one or two > tires every two days. This is dangerous, because if I don't notice, I > could drive on a very low tire, heat it up, and blow it out. This > happened to me once. The tire got really noisy that time, so there was > no violent blowout, but still, I don't want it to happen in any way. > > Any suggestions for what to do about this? > > Thanks. > > Tom Reingold > Noo Joisy As a couple of posters have suggested - soapy water around the stems (between the stem and the rim holding it) but also in the valves, themselves, in case they're leaking. If they are, then the valve innards are easy to replace (that way you don't have to get the tyre dismounted, as you would if the whole stem were to be replaced). What was happening to me a few years back was leakage between the tyre bead and the rim, due to rust. Get a tyre firm to push the tyre bead off the rim, for the wheels in question. Lightly file/sand the rim contact surfaces. Then they usually add a bit of goo to make the contact airtight. Unlikely you'd blow out the tyre if the pressure had fallen so low. More likely you'd shred the casing first, but that's a waste of what's probably a good tyre as well as a scary and maybe dangerous incident. Tyre fitters fix this kind of stuff all the time, especially in places where there's lots of salt used on the roads. Robert Gothenburg
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