PDA

View Full Version : Presta value tip stuck in pump!



JimK
02-15-2013, 01:05 PM
My front tire, a Conti 4000S, has about 5,500 miles on it. I have not had to change the tube even once and the tire still has some life in it. Trouble is the tip of the Presta valve apparently was loosened over the hundreds of times I have attached my pump to it. Today, after adding a few pounds of pressure, I unhooked the pump and the tip of the Presta snapped off. No problem with that--just put a new tube in. However, the tip of the valve got stuck in my pump and I can't get it out. Any suggestions? This brings to mind another question: doesn't it seem like a good idea to preemptively change a tube before the tip is compromised?

baiskeli
02-15-2013, 01:23 PM
My front tire, a Conti 4000S, has about 5,500 miles on it. I have not had to change the tube even once and the tire still has some life in it. Trouble is the tip of the Presta valve apparently was loosened over the hundreds of times I have attached my pump to it. Today, after adding a few pounds of pressure, I unhooked the pump and the tip of the Presta snapped off. No problem with that--just put a new tube in. However, the tip of the valve got stuck in my pump and I can't get it out. Any suggestions?

What kind of pump? You can usually unscrew and disassemble the head enough to get something out of it.


This brings to mind another question: doesn't it seem like a good idea to preemptively change a tube before the tip is compromised?

Well, yeah, sounds like a good idea now.

JimK
02-15-2013, 01:44 PM
It's a Hurricane floor pump. I took it apart as much as looked feasible without breaking any parts. No luck.

baiskeli
02-15-2013, 01:53 PM
It's a Hurricane floor pump. I took it apart as much as looked feasible without breaking any parts. No luck.

Hmm. Usually you can unscrew the very end of the head, the part that goes over the valve, from the rest of the head. Like the grey part in this photo:

http://untrflag.info/img.php?img=m5m4z5o4534454g4s59414f5r5e4k5k4i4m4i5 r4f4k5z584u2b4l4m4v2h4f414p5m516q2s5e5w5l5j5p2k403 33r484p27423046464w294m203z214u2s264a4a35353336303 w283v294q4s4x254z3o5u5l5

JimK
02-15-2013, 03:47 PM
Thanks. Yes, I did that. I removed the piece inside, which the tip is stuck in.

hozn
02-15-2013, 09:57 PM
Obviously hard to say w/o seeing it, but is it loose in there -- i.e. would something like a magnet help? (I'm not sure what metal those are made of, but figure it's worth a mention.) Or blowing air through the opposite end of the pump somehow ... or putting super glue on the end of the now-broken presta valve stem and jamming it in there to reclaim it's lost member? (that last suggestion could probably backfire...)

JimK
02-16-2013, 06:25 AM
Thanks for the suggestions. I blew it out with air (thanks hozn). The pump is working again and I will be preemptively replacing tubes every few months (if they last that long without a flat).

baiskeli
02-16-2013, 09:18 AM
Thanks. Yes, I did that. I removed the piece inside, which the tip is stuck in.

Okay. And it's stuck that part? Can you get any kind of grip on it?

If I were you, I'd be rummaging in my tool box for two sets of pliers right now. Maybe needlenose to grab the valve tip.

PS I see you used air. I would have thought of that next, really, I would have.

hozn
02-16-2013, 06:15 PM
Thanks for the suggestions. I blew it out with air (thanks hozn). The pump is working again and I will be preemptively replacing tubes every few months (if they last that long without a flat).

This is a good cautionary tale; I've never heard of this happening. I've definitely used tubes for up to a year or so before having to replace them, ... but I will probably be more mindful of this. For my tubeless setups I definitely have valve stems that have lasted for multiple years now, but not under quite as much use / frequent pumping as my daily commuter.

mstone
02-16-2013, 06:35 PM
This is a good cautionary tale; I've never heard of this happening. I've definitely used tubes for up to a year or so before having to replace them, ... but I will probably be more mindful of this. For my tubeless setups I definitely have valve stems that have lasted for multiple years now, but not under quite as much use / frequent pumping as my daily commuter.

It's not necessarily age related--I've done it on the road with fairly new tubes and a bit of carelessness. There are few things sadder than watching all the air blow out of your tire, with not a thing you can do about it. I generally carry an extra tube these days.

Rod Smith
02-16-2013, 09:17 PM
Can I come to your place of business every few months to pick up the discarded tubes?