Fixing Lezyne Chuck
01-28-23, 09:44 AM
#1
Senior Member
Thread Starter
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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02-04-23, 08:50 AM
#3
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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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Thread Starter
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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...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.
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02-04-23, 05:50 PM
#6
Senior Member
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 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
#8
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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.
