Pump Head Popping Off
11-27-12, 11:51 AM
#1
Senior Member
Thread Starter
Join Date: Mar 2006
Location: Montgomery County, Pennsylvania
Posts: 6,489
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Likes: 0
Liked 6 Times
in
2 Posts
Pump Head Popping Off
After seven years of use the pump head on my Topeak Joe Blow floor pump has started popping off or leaking air as I get to any pressure over about 80 psi. I'm thinking it is time for a rebuild. Has anyone done this? Are the parts hard to find?
__________________
A conclusion is the place where you got tired of thinking. - S. Wright
Favorite rides in the stable: Indy Fab CJ Ti - Colnago MXL - S-Works Roubaix - Habanero Team Issue - Jamis Eclipse carbon/831
A conclusion is the place where you got tired of thinking. - S. Wright
Favorite rides in the stable: Indy Fab CJ Ti - Colnago MXL - S-Works Roubaix - Habanero Team Issue - Jamis Eclipse carbon/831
11-27-12, 12:28 PM
#2
Senior Member
Looks like what you need is listed here:
https://www.topeak.com/products/Pump-Replacement-Kit
Looks pretty simple to replace.
https://www.topeak.com/products/Pump-Replacement-Kit
Looks pretty simple to replace.
11-27-12, 03:19 PM
#3
Time for a change.
Join Date: Jan 2004
Location: 6 miles inland from the coast of Sussex, in the South East of England
Posts: 19,913
Bikes: Dale MT2000. Bianchi FS920 Kona Explosif. Giant TCR C. Boreas Ignis. Pinarello Fp Uno.
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 3 Post(s)
Likes: 0
Liked 5 Times
in
4 Posts
Several years ago I got a top rated floor pump. Pump was fantastic but I did not like the head. The shop had warned about this so I got a Topeak replacement head for it. Nothing wrong with the old one but the New Topeak head felt right- has never let me down and does not leak-even at 150psi.
__________________
How long was I in the army? Five foot seven.
Spike Milligan
How long was I in the army? Five foot seven.
Spike Milligan
11-28-12, 03:46 PM
#4
your god hates me
Join Date: Apr 2006
Posts: 4,591
Bikes: 2016 Richard Sachs, 2010 Carl Strong, 2006 Cannondale Synapse
Mentioned: 10 Post(s)
Tagged: 0 Thread(s)
Quoted: 1251 Post(s)
Liked 1,276 Times
in
706 Posts
Of course, I didn't tell them my pump was seven years old (it wasn't; mine was more like two years old).
It's really easy to fix once you have the kit, takes less than five minutes.
11-28-12, 08:54 PM
#5
Senior Member
Join Date: Jul 2012
Location: Pittsburgh, PA
Posts: 2,061
Bikes: 2012 Trek DS 8.5 all weather hybrid, 2008 LeMond Poprad cyclocross, 1992 Cannondale R500 roadbike
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
NOS -- I apologize if I am steeling your thread, but something has been bothering me.
I keep having trouble getting the head of the pump to seat properly. Sometimes I get a high reading and realize that the air just isn't going into the presta valve. Other time it just leaks.
Lately, I have had success removing the head and opening (or closing) the presta valve a little.
Is it something that I am doing wrong or is it the pump (or the valves) that I am using?
... Any thoughts or ideas will be appreciated. This has been making me a little crazy...
I keep having trouble getting the head of the pump to seat properly. Sometimes I get a high reading and realize that the air just isn't going into the presta valve. Other time it just leaks.
Lately, I have had success removing the head and opening (or closing) the presta valve a little.
Is it something that I am doing wrong or is it the pump (or the valves) that I am using?
... Any thoughts or ideas will be appreciated. This has been making me a little crazy...
Last edited by GeorgeBMac; 11-28-12 at 08:58 PM.
11-28-12, 09:07 PM
#6
Banned.
Join Date: Aug 2001
Posts: 20,917
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 12 Times
in
10 Posts
This may be a silly response, but I am sure you are aware that the presta valve must be opened about 1+ turn before pumping? Maybe I misread your post?
Sorry if I insulted you.
Sorry if I insulted you.
Last edited by DnvrFox; 11-28-12 at 09:10 PM.
11-28-12, 09:48 PM
#7
Senior Member
Join Date: Jul 2012
Location: Pittsburgh, PA
Posts: 2,061
Bikes: 2012 Trek DS 8.5 all weather hybrid, 2008 LeMond Poprad cyclocross, 1992 Cannondale R500 roadbike
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
Thanks!
11-28-12, 10:08 PM
#8
Banned.
Join Date: Aug 2001
Posts: 20,917
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 12 Times
in
10 Posts
No! Not at all! That is exactly the kind of thing I am looking for... Perhaps I have not been opening it wide enough... I plan on going out tomorrow. I'll try to do at least a full turn (although the things are so tiny it's hard to tell how far I've turned them).
Thanks!
Thanks!
11-28-12, 10:14 PM
#9
Senior Member
Join Date: Mar 2012
Location: Tallahassee, FL
Posts: 4,811
Mentioned: 5 Post(s)
Tagged: 0 Thread(s)
Quoted: 1591 Post(s)
Likes: 0
Liked 1,018 Times
in
571 Posts
probably a silly question, but can you pump a presta valve if the top of the valve stem has broken off? I'll be forced to find out in a day or so, but by then my shipment of tubes should have arrived and I'll be able to change out the tube if the answer is no.
11-28-12, 10:33 PM
#10
Banned.
Join Date: Aug 2001
Posts: 20,917
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 12 Times
in
10 Posts
In my experience it is sort of hit and miss, and didn't last too long. However, I have had to do that just a couple of times, once when the top broke off in the middle of the ride. I guess in theory it ought to work,
Last edited by DnvrFox; 11-28-12 at 10:44 PM.
11-28-12, 10:56 PM
#11
Administrator
Join Date: Feb 2005
Location: Delaware shore
Posts: 13,558
Bikes: Cervelo C5, Guru Photon, Waterford, Specialized CX
Mentioned: 16 Post(s)
Tagged: 0 Thread(s)
Quoted: 1106 Post(s)
Liked 2,173 Times
in
1,464 Posts
I keep having trouble getting the head of the pump to seat properly. Sometimes I get a high reading and realize that the air just isn't going into the presta valve. Other time it just leaks.
Is it something that I am doing wrong or is it the pump (or the valves) that I am using?s.
11-28-12, 11:25 PM
#12
Senior Member
As above, you need to tap a presta to make sure its not stuck shut, then its pretty easy.
11-29-12, 07:59 AM
#13
Senior Member
Thread Starter
Join Date: Mar 2006
Location: Montgomery County, Pennsylvania
Posts: 6,489
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Likes: 0
Liked 6 Times
in
2 Posts
Looks like what you need is listed here:
https://www.topeak.com/products/Pump-Replacement-Kit
Looks pretty simple to replace.
https://www.topeak.com/products/Pump-Replacement-Kit
Looks pretty simple to replace.
NOS,
Probably the neophrene washer on the presta side, if it is a two sided head. Worn out from the valve's threads. The rebuild kit should have this as well as the inner plunger's gasket. Be sure to grease the inner gasket before you put the plunger back into the tube body.
Bill
Probably the neophrene washer on the presta side, if it is a two sided head. Worn out from the valve's threads. The rebuild kit should have this as well as the inner plunger's gasket. Be sure to grease the inner gasket before you put the plunger back into the tube body.
Bill
The one time I did it all I had to do was send an email to Topeak stating "My Joe Blow floor pump has started popping off or leaking air as I get to any pressure over about 80 psi" (or something to that effect) and they sent me the pump head rebuild kit free of charge.
Of course, I didn't tell them my pump was seven years old (it wasn't; mine was more like two years old).
It's really easy to fix once you have the kit, takes less than five minutes.
Of course, I didn't tell them my pump was seven years old (it wasn't; mine was more like two years old).
It's really easy to fix once you have the kit, takes less than five minutes.
__________________
A conclusion is the place where you got tired of thinking. - S. Wright
Favorite rides in the stable: Indy Fab CJ Ti - Colnago MXL - S-Works Roubaix - Habanero Team Issue - Jamis Eclipse carbon/831
A conclusion is the place where you got tired of thinking. - S. Wright
Favorite rides in the stable: Indy Fab CJ Ti - Colnago MXL - S-Works Roubaix - Habanero Team Issue - Jamis Eclipse carbon/831
11-29-12, 04:27 PM
#14
Procrastinateur supreme
There's actually two different dual-head units on Joe Blows (and a few different Joe Blow models). The older one which I have is a little hard to grab and twist to lock as my hands get increasingly arthritic. I'm thinking of getting the newer one with the yellow lock lever. But so far, I've not had to replace the gasket - but I've had to replace the tubing going to the head - it just got full of cracks.
11-29-12, 04:50 PM
#15
Senior Member
Join Date: Jul 2012
Location: Pittsburgh, PA
Posts: 2,061
Bikes: 2012 Trek DS 8.5 all weather hybrid, 2008 LeMond Poprad cyclocross, 1992 Cannondale R500 roadbike
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
Thanks -- that was making nuts!
11-30-12, 12:11 AM
#16
Cycle Year Round
https://www.topeak.com/products/Pumps/trk_jb01
The kit came in without without the o-ring. I had gotten tired of waiting for the kit, so I made an educated guess on the o-ring and got a plumbing o-ring from the hardware store. $0.62 for the package of two. It worked and now I have a spare o-ring.
The kit did finally come in and now the office pump is working as well.
Just in case you have a JoeBlow Pro or Turbo the o-ring size is 1/2" I.D. (5/8" O.D.) x 1/16" wall part # SC 0529.
__________________
Land of the Free, Because of the Brave.
Land of the Free, Because of the Brave.
Last edited by CB HI; 11-30-12 at 12:14 AM.
