Fixing Lezyne Chuck
01-28-23, 09:44 AM
#1
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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.
02-04-23, 07:36 AM
#2
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Lezyne usually has very good customer service. I expect if you contact them they might send replacement O ring(s) as a courtesy.
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Originally Posted by rjones28
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02-04-23, 08:50 AM
#3
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Originally Posted by Jicafold
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?
You could try removing the o-ring from your chuck, and seeing if the o-ring dimensions noted in that post make sense.
02-04-23, 12:16 PM
#4
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Originally Posted by John Valuk
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.
You could try removing the o-ring from your chuck, and seeing if the o-ring dimensions noted in that post make sense.
Last edited by Jicafold; 02-04-23 at 12:47 PM.
02-04-23, 04:12 PM
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Originally Posted by Jicafold
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.
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02-04-23, 05:50 PM
#6
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Originally Posted by Jicafold
Thank you for that but that link doesn't seem to work.
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 it’d 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
ID: 5.2mm
OD: 9mm
Profile: 1.9mm
02-07-23, 03:55 AM
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Hopefully new o-rings do the trick. On mine, the threads were slightly stripped so I've got to replace the whole chuck.
02-07-23, 11:44 AM
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call them. I've personally had success with Lezyne for my pump - they sent me a couple parts. great team over there.
