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If the home made compressor fails try leaving a tube in overnight. If the tyre's been stored folded up it can take a while for the bead to conform to the rim.
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Make sure the collar holding on the valve is as tight as you can get it, I had real trouble getting mine seated when it turned out just enough air was leaking from around the valve to stop it sealing.
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Gaps are normal.
You're going to need way more volume of air at a higher rate for the bead to 'pop' onto the rim. Only been lucky once with a normal pump.
Try the ghetto pump method, should work a treat. Compressor is slightly excessive. If you take it down to any decent bike shop, they should have the tooling to do it pretty sharpish. -
I've tried manic pumping and loads of bubbles, but air just flows out freely.
You need another layer of tape. Don't waste a CO2 on it if a track pump won't even push the tyre about a bit.
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As @howard suggests, use another layer of rim tape.
Also invest in a charger pump, it makes life so much easier.
i bought one of the Bontrager TLR charger pumps and have since found life much easier
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Jon.
Sumo
Chak
Howard
dancing james
@ewanmac
Just spent an unhappy hour trying to install some tubeless. I just can't see how I'm supposed to get the bead to seat.
I'm using S-ones on a set of Alex rims, however when installed with no air in it the tyre sits low in the rim bed with several mm of space between the bead and the internal edge of the rim. I've tried manic pumping and loads of bubbles, but air just flows out freely. I've tried using an inner tube to at least get one side of the tyre seated but as soon as I deflate the inner tube both beads appear to come away from the rim again.
I haven't tried with CO2 or a compressor yet (lost the head of my CO2 pump and will try making a compressor this evening) but even with the increased pressure I can't see how the air won't instantly flow out of all the gaps?