Author Topic: Should've been easy...  (Read 269 times)

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Offline Ieazo

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Should've been easy...
« on: January 15, 2017, 05:32:02 PM »
So I bought a few new o-ring to replace the one on the pellet probe of the Daystate and one for the Superten buddy bottle which is past it and needs renewing.

Daystate done last week no problem other than needing 4 hands.

I'd ordered FAC rated seals for both, the Daystate is FAC anyway but I may be putting the Superten onto my FAC later this year so figured an uprated seal should seal at 12ft/lb regardless.

Seal fitted and lubed I screwed the buddy bottle back onto the rifle, it leaked until screwed almost a full revolution further on. Upon removal it brought part of the regulator with it :(

So I dismantled and rebuilt the rifle this morning, now fitted the old o-ring which after a bit of greasing is holding a seal and the rifle is running sweet between 570-580fps (11.55-11.95ft/lb @ 16gr pellet weight). After checking properly it transpires the new o-ring OD is smaller than the original, so I messaged the ebay seller who responded saying "We had this before as the seals are harder (more durable) more tension needs to be applied to create a seal yes, The regulator needs be tighter to stop it coming undone." As the filling valve end and the transfer port end of a Superten reg need to be aligned (as I understand it, if this is incorrect please let me know) that would mean getting the filling valve end turned another full revolution, there is no way on earth that is possible, trust me!!!

I have responded to the seller as above so I wait to hear what they say, they only cost 3 so I have no interest in returning the o-ring it's more faffing around than I can be arsed with.

Rifle now reassembled, chrono'd and the scope remounted and zero'd back to exactly where it was prior this incident but the point is I never should have had to go to this bother if they just sent the correct size of blasted o-ring in the first place.
« Last Edit: January 15, 2017, 06:46:05 PM by Ieazo »
Springers:- SMK VXS19 - 18 GRT3 trigger & HW97k V-Glide
PCP's:- Uncle Barry's Daystate Mk3 (FAC), BSA Superten & AA S510
FAC :- Anschutz 1417 .22LR, CZ 452 .17HMR & Tikka T3 .223 1:8
Shotguns:- 12 Gauge Bettinsoli Xtrail O/U & Beretta A302 Semi-Auto

Online airgunnut

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Re: Should've been easy...
« Reply #1 on: January 15, 2017, 07:27:35 PM »
Well it's nice to know someone else is having problems with orings, first it was the orings in the valve in my fn19, second was the the oring on the quick release hose on my 12v pressure washer >:(
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Offline seagate

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Re: Should've been easy...
« Reply #2 on: January 15, 2017, 07:33:55 PM »
 So the supplier knowingly sent you the wrong one. Wanker.
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Offline Gambo

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Re: Should've been easy...
« Reply #3 on: January 15, 2017, 07:53:56 PM »
I went to harder (90 Shore rated) bottle o-rings seals once, but soon went back to using standard seals supplied by Richard of Best Fittings, and simply changed them more regularly.

If harder seals were the way to go, you can be pretty sure BSA would have already gone down that route and fitted them as standard, but instead they chose to use the softer (70 shore rated IIRC) seals for a reason.

Offline Ieazo

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Re: Should've been easy...
« Reply #4 on: January 16, 2017, 08:43:41 AM »
Regardless of hardness the o-ring they sent was a smaller OD, this is the issue I feel they are fobbing me off by bring this into the mix. Had the ring been the correct OD yes it may have needed tightened on slightly more firmly but it wouldn't have pulled the reg out with it, the fact that it's too small OD means the bottle screws all the way into the thread which is IMHO why the reg cam out with it.
Springers:- SMK VXS19 - 18 GRT3 trigger & HW97k V-Glide
PCP's:- Uncle Barry's Daystate Mk3 (FAC), BSA Superten & AA S510
FAC :- Anschutz 1417 .22LR, CZ 452 .17HMR & Tikka T3 .223 1:8
Shotguns:- 12 Gauge Bettinsoli Xtrail O/U & Beretta A302 Semi-Auto

Online Baggawind

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Re: Should've been easy...
« Reply #5 on: January 16, 2017, 09:43:31 AM »
This is where a digital vernier comes in handy. With a little practice you can measure o rings accurately. The slightest difference in thickness can make a huge difference. Also, as Gambo said, 70 shore is the way to go , they have a bit more give. I once asked Dave Welham of Airmasters what he used in his regs and, to my surprise, he said he uses 70 shore for everything. And, did you say 3 for an o ring? I can get 20 for that price. Find the actual sizes you need then go to E-bay, there,s a lot of reputable companies on there that can supply them for pennies.

Offline Ieazo

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Re: Should've been easy...
« Reply #6 on: January 16, 2017, 02:31:55 PM »
That was for two Mel ;)

Don't need digi vernier I can see by eye that it is smaller, flippin' tubes and now that I've asked if they have any interest in putting this right I'll name them tonight if no satisfaction.

The rings should surely be the same OD regardless of hardness, anyone disagree with this?
Springers:- SMK VXS19 - 18 GRT3 trigger & HW97k V-Glide
PCP's:- Uncle Barry's Daystate Mk3 (FAC), BSA Superten & AA S510
FAC :- Anschutz 1417 .22LR, CZ 452 .17HMR & Tikka T3 .223 1:8
Shotguns:- 12 Gauge Bettinsoli Xtrail O/U & Beretta A302 Semi-Auto

Offline Ieazo

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Re: Should've been easy...
« Reply #7 on: January 16, 2017, 02:32:45 PM »
I should add this mob appear to have no phone number :(
Springers:- SMK VXS19 - 18 GRT3 trigger & HW97k V-Glide
PCP's:- Uncle Barry's Daystate Mk3 (FAC), BSA Superten & AA S510
FAC :- Anschutz 1417 .22LR, CZ 452 .17HMR & Tikka T3 .223 1:8
Shotguns:- 12 Gauge Bettinsoli Xtrail O/U & Beretta A302 Semi-Auto

Offline Gambo

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Re: Should've been easy...
« Reply #8 on: January 16, 2017, 03:27:24 PM »
Regardless of the thickness of the o-ring, the flange face of the bottle butts up tightly against the flange face of the reg when the o-ring compresses, so there will be metal to metal contact whatever size o-ring is fitted, even a slightly larger one.

So saying the reg has unscrewed as a direct consequence of an undersize seal being used doesn't ring true in my mind.