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Really stupid question(6 posts)

Really stupid questionIamhoosier
May 2, 2003 4:11 PM
(deep breath) OK, just got my new road bike last week and am getting ready for tomorrow. Going to check my air pressure, knowing that the valves are different from my hybrid, tried to change the head. Don't have the instructions anymore. I unscrewed the cap, pulled out the gasket and the little "do-hickey". Reversed the "do" and the gasket and put the cap back on. Pushed on the valve, flipped lever out--nothing. Gauge shows 0. What am I doing wrong? Told you it was stupid. Thanks
Try...biknben
May 2, 2003 4:40 PM
Different pumps have slightly different internals but many have a rubber gasket and a "do-hickey" like you describe. What you wrote seems right to me. The gasket should have a small hole on one side and a larger hole on the other. The smaller hole is for Presta. The plastic thing inside usaully has to be turned around when you turn the gasket around.

Be sure you are inserting the valve in far enough. A presta valve will go in farther than a schreader valve. If things still don't work I would turn the plastic "do-hickey" around again. Just keep trying different sequences until you get it right. It shouldn't be too difficult.
Thanks and..Iamhoosier
May 2, 2003 5:11 PM
Correct on the smaller hole in gasket. I pushed on pretty far but maybe not far enough, considering I don't know what I'm doing. I'll continue to experiment. Thanks for the response and encouragement. I'm a klutz. My wife says everyone must learn the first time but I am a male. Asking for help is not easy for us! :-)
Thanks and..almccm
May 2, 2003 6:29 PM
Did you remember to turn the little brass fitting on the valve itself? After you remove the valve cap there is a little fitting that screws down to seal valve and you unscrew it (bring it up) so you can let air out or put air in. After filling the tire you screw it back down to seal again. A friend was in my garage when I got my first bike with a presta valve. If he hadn't shown me that little fitting I would probably still have flat tires.
We have a winner!!Iamhoosier
May 2, 2003 6:57 PM
You are not in my garage but I did not know that!! I had noticed that they turned but... Guess my wife was right. Everyone has to learn the first time. Of course, she is usually right. OK, always!

Thanks so much.
re: Really stupid questionTUT2222
May 2, 2003 7:03 PM
And, if you are using prestia and have the locknuts on, make sure they are tight. My Proton seems to be fussy about that, so I took the nut off and no problem. It was like a revelation, no more swearing at my bike before I even went out for a spin.