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PostPosted: Fri Jan 03, 2014 8:10 am 
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Joined: Wed Aug 31, 2011 5:50 am
Posts: 34
Location: Near London
I managed to damage the o-ring on a flat top piston I was installing in my 1322.Can anyone suggest a way of removing the o-ring without damaging the aluminum groove in the piston?
I've tried my fingernail (damaged that too), toothpick and a credit card to no avail. I really don't want to use a nail or other metal object.

Thanks.


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PostPosted: Fri Jan 03, 2014 8:36 am 
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Location: GTA
Did you try a hacksaw?
Just kidding. I use metal picks, I imagine a toothpick would work, just kind of pinch the oring a bit to raise it up enough to get the pick under.
The aluminium is not as soft as you think, you would have hack at it to do any damage. Even if you damage it, a quick file and some sand paper and its as good as new.
If it is pooched why not just slice it with a knife?

Take off any burrs in the tube before you re-install the new oring. Check the slot and pivot pin holes for sharp edges.


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PostPosted: Fri Jan 03, 2014 12:47 pm 
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If you can pinch the oring enough to get the toothpick under than great otherwise you'll just break the tip's off the toothpick.
If you have one of the plastic dental floss picks like in the pic below just use the pointed tip they will work great and will not scar up you FTP oring groove and if you plan on removing more orings get a plastic oring removal tool like the one in the pic below.

Image

Image

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PostPosted: Fri Jan 03, 2014 1:48 pm 
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Location: Near London
Ace wrote:
If you can pinch the oring enough to get the toothpick under than great otherwise you'll just break the tip's off the toothpick.
If you have one of the plastic dental floss picks like in the pic below just use the pointed tip they will work great and will not scar up you FTP oring groove and if you plan on removing more orings get a plastic oring removal tool like the one in the pic below.

Image

Image


Thanks, Ace. I have some of those dental picks and found that the pick end wouldn't lift the 0-ring, but the floss end lifted it enough for me to grab on to it. :D

And Woody, my inadequate de-burring of the slot end was the reason the o-ring got chewed up. Live and learn. :oops:


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PostPosted: Fri Jan 03, 2014 1:51 pm 
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You guys are sooo complicated, sheesh. ;)

Wipe the o-ring off so there no slippy lube on it, pinch it (hard) with your thumb and pointy-finger and pull up- it will stretch and you can then continue and pull it off- there is enough play in it that pinching it will allow it to bulge and climb over the rim (if it's damaged already, any excess stretching won't matter). Just don't do it in a hurry or you could cut your fingers on the narrow aluminum ridge of the piston.

And yes, this was my highly technical post of the day.

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PostPosted: Fri Jan 03, 2014 1:59 pm 
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happy it worked out for you either way, and yes some of the dental sticks tips are more flimsy then others.
lol..Eric that is the easy way when things are perfect but some orings are hard to pinch and get enough lip to grab and pull over. :|
I'm sure the OP must have tried that first sheesh. :lol:

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PostPosted: Fri Jan 03, 2014 4:57 pm 
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Location: Ottawa : Canada
http://www.princessauto.com/pal/en/Misc ... /8212862.p


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