New: Take part in the February 2020 BikeRide Giveaway for a Proviz REFLECT360 Cycling Jacket

Welcome guest! Register or sign in to participate in the cycling discussions.


Opening Dunlop (Woods) valve
#1
[attachment=5105]

I'm having trouble inflating the tire on my Dutch bike (I now live in the UK, no longer NL, by the way). It's got what I'm pretty sure is a spring-loaded or one-way Dunlop valve. As you can imagine since the valve is on my desk, the tube is now deflated.

The problem, I think, is that I can't get the valve to open. I'm using a reasonably potent two-cylinder pedal pump, but I can't seem to force air through the valve. When everything is seated properly to pump the tire, if I contort myself to hold the nozzle of the pump as tightly against the adaptor and valve as possible, the gauge on the pump gets up to around the 5 bar/70 psi mark, but the valve still doesn't seem to open, and no air is getting into the tube.

Any thoughts on how to solve this?
  Reply
#2
Scroll down for info and links to woods valve. Could be you need a replacement.


http://sheldonbrown.com/gloss_w.html#woods
Never Give Up!!!
  Reply
#3
It might be time to convert to Presta valved tubes.
Nigel
  Reply
#4
(05-11-2014, 04:50 PM)nfmisso Wrote:  It might be time to convert to Presta valved tubes.

Just about. I decided the easiest solution was to get a new inner tube. As long as I was at it, I got one with a Schrader valve.
  Reply
#5
Yeh the schrader valve will fit without an adopter. Had no luck with presta. PITA.......YMMV.
Never Give Up!!!
  Reply
#6
In my experience, these clog up more than either schraeder or presta, but work very well otherwise. Usually you just need to replace the valve core.
  Reply


Possibly Related Threads...
Thread Author Replies Views Last Post
  What kind of valve is this (on a kids bike)? rhubear 3 6,901 12-06-2016, 01:50 AM
Last Post: rhubear
  3 flats in a row/hole next to Presta valve fnezchad 2 5,443 03-21-2016, 03:43 PM
Last Post: fnezchad
  Air leak from valve stem with tubeless setup mrbiggles 3 7,884 07-06-2015, 11:55 PM
Last Post: mrbiggles
  Presta valve broken grandmaster 5 11,185 04-15-2014, 02:56 PM
Last Post: nfmisso
  Dunlop mountain bike gear shifter gregoire 6 10,141 10-18-2013, 05:32 PM
Last Post: bobtravers
  Inner tube/valve problem katiemaile 3 7,422 11-14-2012, 02:51 AM
Last Post: Bill
  DIY oversize presta valve inner rim hole fix barefooter 2 8,740 04-16-2012, 06:46 PM
Last Post: barefooter
  Front rim punctures inner-tube at the valve stem. JTA 9 19,385 06-05-2011, 06:16 PM
Last Post: trevgbb
  Corroded valve nfmisso 9 12,815 05-04-2011, 05:37 AM
Last Post: Bill
  Presta valve stem - how much beyond the rim? nfmisso 2 13,563 04-17-2011, 12:49 PM
Last Post: RobAR

Forum Jump: