Have questions or want to discuss cycling? Join Now or Sign In to participate in the BikeRide community.

New: Take part in the June Giveaway for NAKTO Camel e-bike worth $739


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, 12:50 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...

Forum Jump:

[-]
10 Latest Posts
Helmets these days?
Yesterday 05:07 PM
Electric Bike Safety Tips
Yesterday 03:56 AM
Hello!
Yesterday 03:45 AM
Bike Computer /w No Minimum Circumferenc...
Yesterday 03:40 AM
ZULIANI Oria 'helical' tubing 80s
Yesterday 12:07 AM
Old Shimano cassette..how dismantle ?
07-03-2022 11:16 PM
Rode my First Double Century in June
07-01-2022 10:50 AM
Need help identifying this frame.
06-29-2022 05:31 PM
NAKTO Giveaway June 2022
06-28-2022 03:52 AM
NAKTO GIVEAWAY
06-28-2022 12:16 AM

[-]
Join BikeRide on Strava
Feel free to join if you are on Strava: www.strava.com/clubs/bikeridecom

[-]
Top 5 Posters This Month
no avatar 1. Jesper
24 posts
no avatar 2. ReapThaWhirlwind
8 posts
no avatar 3. Yevhen
8 posts
no avatar 4. Munich Transfers
7 posts
no avatar 5. aliccon
7 posts