My new project taught me a new trick recently, one I have never experienced in 50 years of T driving.
I checked the tyres before using the car one day, and used it again the next, with no need for further tyre checks. However, one valve must have had a slow leak. When I came out of the Post Office I saw the half flat tyre which was the reason for the heavy steering I thought I had noticed on the road. I made it to the local tyre place to inflate it, but it wouldn't take air. The tyre jockeys got a real kick out of me changing the rim/tyre assembly using the original T jack and tools.
When I got home I tried to blow it up, but still it would not take air. I removed the valve core and to my amazement the tyre would not deflate!
Have any of you tried to remove a half flat clincher tyre? I fought the beast for an hour before coaxing the bead off on one side. Finally it slowly deflated. With hindsight, it would have been far easier to deliberately puncture the tyre and let it down, and repair the puncture.
I think I have the answer. The valve stem migrated as they do when pressures are low, but before it went far enough to tear the valve out of the tube, it was bent over and jammed. The flap was half way over the valve hole and had jammed against the stem as it was bent over, thus ocluding the stem.
I only have flaps in these tyres because they were already there when I bought the wheels. Had I fitted the tyres with the rim liners I normally use, this is a trick I would never have experienced.
For your interest.
Allan from down under.
Damn Model T's..... They "get" you every way they can!!!!