airbiscuit
Super Member
- Joined
- Aug 28, 2004
- Messages
- 7,417
- Location
- NW Wisconsin
- Tractor
- New Holland T2310 (40hp), Kubota L3010 GST, New Holland TC21DA *** Previously - Farmall H, 1941 John Deere B, Shibaura SD1500, John Deere 850, Bobcat 642, New Holland 1925
You need to keep the tire pushed down off the lip of the wheel so it’s in the middle section of the wheel. That way it can move quite a bit from side to side and allows you to roll the bead over the wheel rim without actually stretching the tire.
You need a helper or a clamp or something to push the tire down at about the 6 o-clock position. If it’s down and off the edge of the rim you’ll be able to roll the rest of it into place.
Wish I could explain it better. But the tire bead can’t be in its final position until the tire is completely mounted. They really don’t stretch overall. Need to allow the whole tire to move directionally as you work it onto the rim. The bead OPPOSITE where you're prying can't be "set" -- must be pushed down on the wheel where the diameter of the rim is much less and the tire can move in the direction that you're prying.
Edit -- In other words, pay close attention to the opposite side from wherever you're prying. In order to work the tire bead over the edge and onto the rim, you have to keep the OPPOSITE side pushed down into the belly of the wheel so the whole tire can shift your direction a bit and allow it to roll onto the rim.
I'm sure you're using a lot of lube. That's also key.
Nice job o
I'll take a pass at this. As you're pulling one lip over the edge of the rim, both opposite edges of tire (upper and lower) have to be sucked into the middle of the rim - It is a smaller diameter, and it gives you some "slack". Put a brick at the edge of the wheel on the back side to hold the tire up slightly, and push the top side down slightly (so both tire edges are sucked into the middle of the rim), and with your third arm, stretch the tire over the rim.