What is the size of Orracle three-way spool o-rings?

[Olsson]

Greetings,

What is the size of the o-rings on an Orracle three-way spool? If you know, please state the specs in their entirety, and not just a common abbreviation. I need to get hold of a set, and it is incredibly hard to in Europe, where everyone - myself included - doesn't have a single clue to imperial o-ring specs. Oh, and that would include any store actually selling o-rings for a living, not that I can blame them.

Speaking of which, would you happen also happen to know where I can source them in Europe, I would be overjoyed.

[Mr. Hick]

https://autocockerparts.com/wgp-auto...-spool-orings/

You mean this set, correct? If no one gives you the correct answer by 1500 EST I can dig into my parts kit and find the note I have written for myself about the oring sizes. I had some trouble sourcing them before cockers became cool again and I know I wrote a list of oring sizes in a small notebook.

[Olsson]

Yep, the larger of the two.
I have trawled through quite a large number of threads, spanning more than a decade, and this question is thrown around a lot, but never an answer other than a link to a purchase.

So a correct answer would be most appreciated. Oh, I'm not in a hurry or anything, but I am curious to see if there are any MCBers out there that interprets 15:00 EST as a challenge.

[Mr. Hick]

According to my notes they are 009-buna-70.

[Olsson]

Much obliged, my fellow.

Edit: Would that be 7/32 X 11/32, or can that spec mean different o-rings. More specifically, what does 009-buna 70 mean?

If I sound clueless, it's because I am clueless. Your system is about as incomprehensible, as if you used the Chinese alphabet for o-rings. I really, REALLY need this spelled out for me.

[Mr. Hick]

This is the spec you're looking for. Hopefully this short webpage helps spell it out better than I can on here.

Also: Buy a bunch extra. They are really easy to nick and cut while assembling that spool. I also destroy at least one just getting them all on.

https://oringmonkeyorings.com/009-BN70-orings

[latches109]

https://www.theoringstore.com/store/...oducts_id=1069

10/$1.25 vs 100/$4.60

[Olsson]

Thanks a bunch. You're setting an example for all the two tooth hillbillies out there.

[Meleager7]

Hi, I've reviving this necro thread, as I am having the same issue with the spool orings when re-building an orracle 3-way.....I have a couple generic oring kits, and my size 009 orings matches the outer diameter of the bad spool oring I took off the 3way. But the orracle spool oring is a skinnier , thinner oring than the size 009 in my kit? When I install the 009 from my kit on the spool, the oring sits too high, and I can't install the spool back in the 3way body.

What gives?

[Jordan]

Hi, I've reviving this necro thread, as I am having the same issue with the spool orings when re-building an orracle 3-way.....I have a couple generic oring kits, and my size 009 orings matches the outer diameter of the bad spool oring I took off the 3way. But the orracle spool oring is a skinnier , thinner oring than the size 009 in my kit? When I install the 009 from my kit on the spool, the oring sits too high, and I can't install the spool back in the 3way body.

What gives?

Try a smaller oring, like a 008 or 007... stretching them will "reduce" the seal's thickness slightly, letting them sit slightly lower in the oring groove.

[Meleager7]

looks like an 008 stretched might work....I need smaller fingers though, these are hard to get on there!!!

[Jordan]

Meleager7 - I use snapring pliers sometimes to help stretch them over...

[Meleager7]

snap ring pliers worked better that clumsy thumbs, thanks mang!

[Mr. Hick]

Hi, I've reviving this necro thread, as I am having the same issue with the spool orings when re-building an orracle 3-way.....I have a couple generic oring kits, and my size 009 orings matches the outer diameter of the bad spool oring I took off the 3way. But the orracle spool oring is a skinnier , thinner oring than the size 009 in my kit? When I install the 009 from my kit on the spool, the oring sits too high, and I can't install the spool back in the 3way body.

What gives?

I purchased bootleg amazon orings originally, and the Buna-70's were more like buna 90 when compared side by side with authorized Caterpillar replacement seals. If a size down works for you, that's awesome!

To add on to snap ring pliers.... I leave the old orings on. I push a new oring until it's next to the slot I want to replace and then cut that oring out with a scalpel. I found this to be the easiest way to replace them if you don't have snap ring pliers or are at the field.