AMW Catch Can O-Ring
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From: Dear Karma, I have a list of people you missed.
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15-'16
AMW Catch Can O-Ring
Anyone have a source on a replacement o-ring for an AMW catch-can? This is for the large (approx 2 3/4") thin o-ring between the body and the cap.
Thanks
Thanks
Last edited by LoneStarFRC; Jul 26, 2008 at 06:38 PM. Reason: typo; ack!
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Joined: Dec 2000
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From: San Diego CA
Hey, Robert,
How are yuh? An o-ring can be a bit tricky to measure as far as its inside diameter. O-ring manufacturers make an o-ring measuring tool that looks like an upside-down cone. You first check a series of slots at the bottom of the reverse cone to see what the o-ring's cross section is. Then you drop the o-ring over the cone point. The line to which the o-ring lines up designates the size of the o-ring, based upon its cross sectional diameter.
I could probably nail its size using my calipers, but I'd have to have the o-ring. If you can somehow measure its thickness and I.D. I can tell you what its size is. You might be able to pick one up through mcmaster.com or a local o-ring distributor. We'd have to guess at its hardness (most are 70 Shore A).
Dave
How are yuh? An o-ring can be a bit tricky to measure as far as its inside diameter. O-ring manufacturers make an o-ring measuring tool that looks like an upside-down cone. You first check a series of slots at the bottom of the reverse cone to see what the o-ring's cross section is. Then you drop the o-ring over the cone point. The line to which the o-ring lines up designates the size of the o-ring, based upon its cross sectional diameter.
I could probably nail its size using my calipers, but I'd have to have the o-ring. If you can somehow measure its thickness and I.D. I can tell you what its size is. You might be able to pick one up through mcmaster.com or a local o-ring distributor. We'd have to guess at its hardness (most are 70 Shore A).
Dave
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Team Owner
Joined: May 2001
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From: Dear Karma, I have a list of people you missed.
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15-'16
Hey, Robert,
How are yuh? An o-ring can be a bit tricky to measure as far as its inside diameter. O-ring manufacturers make an o-ring measuring tool that looks like an upside-down cone. You first check a series of slots at the bottom of the reverse cone to see what the o-ring's cross section is. Then you drop the o-ring over the cone point. The line to which the o-ring lines up designates the size of the o-ring, based upon its cross sectional diameter.
I could probably nail its size using my calipers, but I'd have to have the o-ring. If you can somehow measure its thickness and I.D. I can tell you what its size is. You might be able to pick one up through mcmaster.com or a local o-ring distributor. We'd have to guess at its hardness (most are 70 Shore A).
Dave
How are yuh? An o-ring can be a bit tricky to measure as far as its inside diameter. O-ring manufacturers make an o-ring measuring tool that looks like an upside-down cone. You first check a series of slots at the bottom of the reverse cone to see what the o-ring's cross section is. Then you drop the o-ring over the cone point. The line to which the o-ring lines up designates the size of the o-ring, based upon its cross sectional diameter.
I could probably nail its size using my calipers, but I'd have to have the o-ring. If you can somehow measure its thickness and I.D. I can tell you what its size is. You might be able to pick one up through mcmaster.com or a local o-ring distributor. We'd have to guess at its hardness (most are 70 Shore A).
Dave
Looks like a round Buna-N 60mm x 54mm x 3mm. You're right on the Shore durometer too. Stk # 9262K307 will fill up the groove with approx 1.5 compression.
Thanks
Drifting
Joined: Feb 2007
Posts: 1,993
Likes: 7
From: LaPine Oregon
Make your own ...........
I make my own diameter O rings in the shop from different thickness / diameter 'rubber' material , like rubber hose reels. You can do the same , just find the correct thickness/ diameter material that is larger than you need . Cut to size and superglue it. Particulary in a non pressure application .
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From: San Diego CA
I've done that before, too, Dave; it takes a bit of practice, but it can work.
Robert, for vacuum pressure applications, a "face" o-ring's inside diameter should hug the I.D. of the groove. Thus, the I.D. and cross section are the two important dimensions. Of course, the o-ring must have a cross-sectional diameter that is larger than the groove depth.
Dave
Robert, for vacuum pressure applications, a "face" o-ring's inside diameter should hug the I.D. of the groove. Thus, the I.D. and cross section are the two important dimensions. Of course, the o-ring must have a cross-sectional diameter that is larger than the groove depth.
Dave
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Joined: Sep 2001
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From: Lake Elsinore, CA
An o-ring can be a bit tricky to measure as far as its inside diameter. O-ring manufacturers make an o-ring measuring tool that looks like an upside-down cone. You first check a series of slots at the bottom of the reverse cone to see what the o-ring's cross section is. Then you drop the o-ring over the cone point. The line to which the o-ring lines up designates the size of the o-ring, based upon its cross sectional diameter.
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Thread Starter
Team Owner
Joined: May 2001
Posts: 36,836
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From: Dear Karma, I have a list of people you missed.
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15-'16
I've done that before, too, Dave; it takes a bit of practice, but it can work.
Robert, for vacuum pressure applications, a "face" o-ring's inside diameter should hug the I.D. of the groove. Thus, the I.D. and cross section are the two important dimensions. Of course, the o-ring must have a cross-sectional diameter that is larger than the groove depth.
Dave
Robert, for vacuum pressure applications, a "face" o-ring's inside diameter should hug the I.D. of the groove. Thus, the I.D. and cross section are the two important dimensions. Of course, the o-ring must have a cross-sectional diameter that is larger than the groove depth.
Dave
One thing's for sure, if it works out OK I'll have more spares than I'll ever need.
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Team Owner
Joined: May 2001
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From: Dear Karma, I have a list of people you missed.
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15-'16
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Joined: Dec 2000
Posts: 19,304
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From: San Diego CA
Saaaaay, isn't that what we old timers used to call a "Dunce Cap"?
By the way, the o-ring may very well be metric, because the dimesions you measured don't really match up with an inch-sized o-ring. The closest one I could find is a 2-138, but at .103-inch cross-sectional diameter, there's not much "crush" in the groove (only .013"), which is barely adequate.
Last edited by Dave68; Jul 27, 2008 at 11:59 PM.
Thread Starter
Team Owner
Joined: May 2001
Posts: 36,836
Likes: 244
From: Dear Karma, I have a list of people you missed.
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15-'16
Saaaaay, isn't that what we old timers used to call a "Dunce Cap"?
By the way, the o-ring may very well be metric, because the dimesions you measured don't really match up with an inch-sized o-ring. The closest one I could find is a 2-138, but at .103-inch cross-sectional diameter, there's not much "crush" in the groove (only .013"), which is barely adequate.
By the way, the o-ring may very well be metric, because the dimesions you measured don't really match up with an inch-sized o-ring. The closest one I could find is a 2-138, but at .103-inch cross-sectional diameter, there's not much "crush" in the groove (only .013"), which is barely adequate.
Thread Starter
Team Owner
Joined: May 2001
Posts: 36,836
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From: Dear Karma, I have a list of people you missed.
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15-'16
I touched on that in post #5. The time/cost/handling charge or postage, etc for one o-ring probably wouldn't be too much different than just getting a pack from McMaster. Plus now I have some spares and can maybe help out a fellow forum member in the future that needs one for an AMW can.
Thread Starter
Team Owner
Joined: May 2001
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From: Dear Karma, I have a list of people you missed.
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15-'16
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From: State of Confusion.
I make my own diameter O rings in the shop from different thickness / diameter 'rubber' material , like rubber hose reels. You can do the same , just find the correct thickness/ diameter material that is larger than you need . Cut to size and superglue it. Particulary in a non pressure application .
Just a suggestion because it's always worked for me.
Good Luck!
