Go Back  Bike Forums > Bike Forums > Bicycle Mechanics
Reload this Page >

Fixing Lezyne Chuck

Notices
Bicycle Mechanics Broken bottom bracket? Tacoed wheel? If you're having problems with your bicycle, or just need help fixing a flat, drop in here for the latest on bicycle mechanics & bicycle maintenance.

Fixing Lezyne Chuck

Old 01-28-23, 09:44 AM
  #1  
Jicafold
Senior Member
Thread Starter
 
Join Date: Jun 2013
Posts: 954
Mentioned: 4 Post(s)
Tagged: 0 Thread(s)
Quoted: 294 Post(s)
Liked 86 Times in 64 Posts
Fixing Lezyne Chuck

So I have this Lezyne CNC high pressure floor pump. The chuck doesnt seal very well. I imagine all it would need in a new o ring in there. Can I just replace the o ring or do need the whole thing? Is it possible? What size? Thank you.

Jicafold is offline  
Old 02-04-23, 07:36 AM
  #2  
datlas 
Should Be More Popular
 
datlas's Avatar
 
Join Date: Dec 2007
Location: Malvern, PA (20 miles West of Philly)
Posts: 40,317

Bikes: 1986 Alpine (steel road bike), 2009 Ti Habenero, 2013 Specialized Roubaix

Mentioned: 543 Post(s)
Tagged: 2 Thread(s)
Quoted: 19961 Post(s)
Liked 6,673 Times in 3,175 Posts
Lezyne usually has very good customer service. I expect if you contact them they might send replacement O ring(s) as a courtesy.
__________________
Originally Posted by rjones28 View Post
Addiction is all about class.
datlas is offline  
Old 02-04-23, 08:50 AM
  #3  
John Valuk
Full Member
 
Join Date: Oct 2020
Posts: 218
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 60 Post(s)
Liked 140 Times in 88 Posts
Originally Posted by Jicafold View Post
So I have this Lezyne CNC high pressure floor pump. The chuck doesnt seal very well. I imagine all it would need in a new o ring in there. Can I just replace the o ring or do need the whole thing? Is it possible? What size?
Here's a post where someone describes replacing the Presta-side o-ring on a similar Lezyne chuck: Presta O-Ring for Lezyne ABS-1 PRO HV Flip Chuck.

You could try removing the o-ring from your chuck, and seeing if the o-ring dimensions noted in that post make sense.
John Valuk is offline  
Old 02-04-23, 12:16 PM
  #4  
Jicafold
Senior Member
Thread Starter
 
Join Date: Jun 2013
Posts: 954
Mentioned: 4 Post(s)
Tagged: 0 Thread(s)
Quoted: 294 Post(s)
Liked 86 Times in 64 Posts
Originally Posted by John Valuk View Post
Here's a post where someone describes replacing the Presta-side o-ring on a similar Lezyne chuck: Presta O-Ring for Lezyne ABS-1 PRO HV Flip Chuck.

You could try removing the o-ring from your chuck, and seeing if the o-ring dimensions noted in that post make sense.
Thank you for that but that link doesn't seem to work. I tried the key words in the search too. I did get the O ring out with a small scissors that I used to trim my nose hairs. You can borrow them if you want. Maybe I can go to the hardware store and match it up.


Last edited by Jicafold; 02-04-23 at 12:47 PM.
Jicafold is offline  
Old 02-04-23, 04:12 PM
  #5  
3alarmer 
Friendship is Magic
 
3alarmer's Avatar
 
Join Date: Nov 2010
Location: The Big Tomato
Posts: 21,590

Bikes: old ones

Mentioned: 300 Post(s)
Tagged: 0 Thread(s)
Quoted: 24558 Post(s)
Liked 8,291 Times in 5,800 Posts
Originally Posted by Jicafold View Post
Thank you for that but that link doesn't seem to work. I tried the key words in the search too. I did get the O ring out with a small scissors that I used to trim my nose hairs. You can borrow them if you want. Maybe I can go to the hardware store and match it up.

...O rings come in various diameters and thicknesses. I have a rubber parts warehouse place here in town, that has a big display of them. So I go there. If you measure the exact inner and outer diameters, and thickness, you can probably order an exact match on Amazon, but you'll probably need to order ten of them.
__________________
3alarmer is offline  
Old 02-04-23, 05:50 PM
  #6  
LarryMelman
Senior Member
 
LarryMelman's Avatar
 
Join Date: Aug 2008
Location: Phoenix, AZ
Posts: 625
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 14 Post(s)
Liked 9 Times in 3 Posts
Originally Posted by Jicafold View Post
Thank you for that but that link doesn't seem to work.
It worked for me, maybe the site was temporarily down. In any case, here is what it said:
I emailed Lezyne asking for the o-ring spec so I could get some, and they instead sent me two of the parts. Popping out the old o-ring and fitting in a new one sorted everything out.When fitting the o-ring I measured it, figuring itd be nice to know the size in case I want a quicker replacement of this wear part next time:

ID: 5.2mm
OD: 9mm
Profile: 1.9mm
LarryMelman is offline  
Old 02-07-23, 03:55 AM
  #7  
tFUnK
Senior Member
 
Join Date: Jun 2002
Location: San Jose, CA
Posts: 3,147

Bikes: Too many bikes, too little time to ride

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 254 Post(s)
Liked 183 Times in 149 Posts
Hopefully new o-rings do the trick. On mine, the threads were slightly stripped so I've got to replace the whole chuck.
tFUnK is offline  
Old 02-07-23, 11:44 AM
  #8  
blacknbluebikes 
Senior Member
 
blacknbluebikes's Avatar
 
Join Date: Jul 2013
Location: NJ, USA
Posts: 1,064

Bikes: two blacks, a blue and a white.

Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 369 Post(s)
Liked 614 Times in 299 Posts
call them. I've personally had success with Lezyne for my pump - they sent me a couple parts. great team over there.
blacknbluebikes is offline  

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off


Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service - Do Not Sell or Share My Personal Information -

Copyright © 2023 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.