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Tire mounting trouble on Deep 6's
It's been several years since I put tires on my 911, I have a set I need to mount now.
My memory of mounting the tires is that it was a minor nightmare, and difficult to do without damaging the tire bead. The drop center in that wheel is long way from either rim edge, making it a tough stretch for the tire. Is there any recent tire changing equipment that makes it an easier job?
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PCA - March 1973 1965 Coupe 301354 Irish Green 1970 Moto Guzzi Ambassador 1974 Ducati 750 GT 1975 Norton 850 Last edited by gper; 04-02-2005 at 02:15 PM.. |
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03-29-2005, 05:42 PM
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Join Date: May 2004
Location: Lake Cle Elum - Eastern WA.
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The wheel needs to be mounted on the tire machine upside down. Should be less of a stretch.....
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Bob S. 73.5 911T 1969 911T Coo' pay (one owner) 1960 Mercedes 190SL 1962 XKE Roadster (sold) - 13 motorcycles |
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03-29-2005, 06:36 PM
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Mounting from the back side makes it possible, but it's still hard on the tires.
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PCA - March 1973 1965 Coupe 301354 Irish Green 1970 Moto Guzzi Ambassador 1974 Ducati 750 GT 1975 Norton 850 |
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03-30-2005, 09:52 AM
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You need to find someone that has the kind of machine that installs the tire without contact to the wheel, other than the lugs that hold the wheel in place on the machine. I'm sorry I don't have a techincal term for this, but the first place I tried didn't have such a machine, and ruined three tires before throwing in the towel. As mentioned, mount from the back side. Also, the valve stem hole is very large, requiring oddball valve stems. The tire store might have to dig for them.
-Scott
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'70 911E short stroke 2.5 MFI. Sold  '56 Cliff May Prefab |
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03-30-2005, 11:25 AM
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^^
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PCA - March 1973 1965 Coupe 301354 Irish Green 1970 Moto Guzzi Ambassador 1974 Ducati 750 GT 1975 Norton 850 |
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04-02-2005, 02:15 PM
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Location: Long Beach CA, the sewer by the sea.
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Metal screw type valve stems are the hot tip. No problems around here with the type of tire machine where the rim turns and the bead rolling bar stays in place (called a rim clamp tire changer). Lots of soapy water. Mount from back like they said. Make sure your rims are clean on the bead seat and make sure that only soapy water is used. There are no safety beads on the deep six bead seat as it is rated as a tube-type rim. The soapy water will dry and the beads will stick and not roll off the bead seat. Any oil or grease in there is dangerous.
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04-02-2005, 03:22 PM
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According to Harvey Weidman the safety bead is not related to tubes or the lack thereof. The safety bead is there to help prevent the tire comming off the rim in the event of rapid deflation.
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'70 911E short stroke 2.5 MFI. Sold '56 Cliff May Prefab |
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04-03-2005, 12:02 PM
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Location: Arapahoe County, Colorado, USA
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If you think tire mounting is difficult on early 6x15 Fuchs, try the 7x15 911R Fuchs for extreme difficulty.
Best, Grady
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04-03-2005, 12:21 PM
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Porsche
Ducati Cafe
Norton Commando 850 MK3
Ducati 750 GT
1970 Porsche 911E
