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?

The wheel needs to be mounted on the tire machine upside down. Should be less of a stretch.....

Mounting from the back side makes it possible, but it's still hard on the tires.

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

^^

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.

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.

If you think tire mounting is difficult on early 6x15 Fuchs, try the 7x15 911R Fuchs for extreme difficulty.

Best,
Grady