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Viton Oil Control O-ring

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Old 12-19-02, 05:36 PM
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Viton Oil Control O-ring

Ok, i ordered a set of viton oil control o-ring and the inner ones are too tight? Does anybody know the right number?

I went with 9464K125 which is Dash 244 like everybody said, and they are too thick, what gives. The outer ones, which were part number 9464K116 and are dash 158 were the right ones. Anybody know how to make the 1/8" thick ones fit? They are too tight, let me know if i ordered the wrong ones so I can send them back.
Old 12-19-02, 06:57 PM
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yeah, it is a tight fit but 244 is the one atkins sells also.
Old 12-19-02, 07:25 PM
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How do you know that the -244 is the ones that Atkins uses? Do you have first-hand knowledge? I tried both (-158 and -244 viton o-rings), and wound up using new stock ring in my last two engine due to excessively (if not impossibley) tight fits with either of those?

I just check and noticed that my post to this effect was lost after the last back of this Forum.

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Old 12-19-02, 10:42 PM
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Really, hrm, so I just wasted money on it? Darn it
Old 12-19-02, 10:46 PM
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If you bought them from McMaster, you're golden as they have an exceptional (read liberal) return policy.

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Old 12-19-02, 11:25 PM
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What is a good price for a set of Viton oil control O rings? Is $50 a good buy?
Old 12-20-02, 04:51 PM
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I paid $40 on eBay.
Old 12-20-02, 06:29 PM
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Originally posted by carlos@the-rotary.net
How do you know that the -244 is the ones that Atkins uses? Do you have first-hand knowledge? I tried both (-158 and -244 viton o-rings), and wound up using new stock ring in my last two engine due to excessively (if not impossibley) tight fits with either of those?

I just check and noticed that my post to this effect was lost after the last back of this Forum.

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I have an o-ring measuring cone at work.
Old 12-20-02, 11:05 PM
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Ok, thanks!
Old 12-20-02, 11:42 PM
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Any chance that the required O-ring are metric and therefore not compatible with a (standard) o-ring cone? I still bothered by the fact that neither size was (acceptabley) close to fitting. I even check my McMaster Carr reciept, and both were in fact the mentioned sizes. I really hope that I'm wrong on this one because I'd love the McMaster viton o-ring possibility.

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Old 12-21-02, 06:21 PM
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Originally posted by carlos@the-rotary.net
Any chance that the required O-ring are metric and therefore not compatible with a (standard) o-ring cone? I still bothered by the fact that neither size was (acceptabley) close to fitting. I even check my McMaster Carr reciept, and both were in fact the mentioned sizes. I really hope that I'm wrong on this one because I'd love the McMaster viton o-ring possibility.

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I am sure the mazda ones are metric but the guys who sell viton rings here just sell the std o-rings and charge an arm and a leg. Everyone that I have asked that has used the atkins ones say they are very tight and quite a few end up breaking the oil seal in the process.
Old 12-21-02, 06:44 PM
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RXSEVEN: thanks for the insight.

BTW, has anyone priced the Oil Control seals/rings (should you break one)? Needless to say they're not cheap, especially since they are only available in pairs. If you do decide to go this route, be forewarned:
YOU DON"T WANT TO BREAK THEM... else... OUCH!

Flyin, Racin, and Buildin Rotary Beasts,
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Old 12-21-02, 08:31 PM
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Metric o-rings usually do not have an equivalent std o-ring. Haven't found a us supplier for the metric products.

Kyle
Old 12-22-02, 07:25 AM
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McMaster does have metric Viton o-rings, but only to 50mm ID.

Flyin, Racin, and Buildin Rotary Beasts,
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'93 RX-7 R-1 (Sellin')
'95 M3 Sport (Drivin')
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Old 01-01-03, 11:43 AM
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Atkins seems to have realized that people have started buying these for a lot less. They are now selling a viton set for 39.95 on ebay!
Old 01-03-03, 12:44 PM
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Originally posted by rxseven
Atkins seems to have realized that people have started buying these for a lot less. They are now selling a viton set for 39.95 on ebay!
Heh, it figures. Every time I pay top dollar for something the price gets cut!
Old 01-03-03, 01:29 PM
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Hrm. The mcmaster ones I sold, didn't work, were too thick, I just sent them back after breaking a damn oil control ring. Anyways, anybody know were atkins get theirs from?
Old 01-05-03, 03:20 PM
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Javrosario, that was exactly my experience! I'm convince that the prevciously discussed ASA number as NOT compatible. And ANY cost savings goes out the door as soon as you break an Oil Control Ring $$$... as I'm sure you now know!

Flyin, Racin, and Buildin Rotary Beasts,
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'01 Pathfinder SE (Towin')
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Old 01-06-03, 01:38 AM
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Yeah, I'll just stick to the mazda ones, I never had any problems with them. Yeah, I just ordered a new pair of oil control o-rings, I wasn't too happy. Now I got an extra inner one.
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