Webley omega triggers

[bill57]

Trouble is that there aren't enough Omega triggers around for there to be a pool of experts, and I'm certainly not one. I've never dismantled mine as there are no clear instructions on re-assembly available - I'll do it one day, but only when necessary.

I'll use Chambers part numbers. If you think that the primary (SR018) and secondary(SR020) sears look OK and unmolested, that's good. If they've been ground, filed or even polished, possibly bad. A photo of your trigger blade would be very helpful - there's no coil spring involved in it anywhere. If someone's played about with the trigger blade, get rid of it quick and just replace the whole thing. Since the trigger blade is made from a sort of pot-metal alloy, it will have no bearing surfaces other than the head of the adjuster screw, so don't underestimate the importance of the screw - it's an integral part of the trigger, rather than just an adjuster.

I wouldn't really call the Omega trigger two stage, to me it has no discernible stages - tbh I don't like it much, it's smooth and consistent, but vague. There's nothing that lets you know it's about to fire.

As before, any photos you can post will help solve this.

[mrgeoff]

Ok, thanks. The bigger trigger is on the slightly earlier model with the steel tube spring guide.

They must have done some improvements on the slightly later omega, improving its feel and lowering its weight

Cheers!

[Geezer]

Ok, thanks. The bigger trigger is on the slightly earlier model with the steel tube spring guide.

They must have done some improvements on the slightly later omega, improving its feel and lowering its weight

Cheers!

There were definitely two versions of the trigger.

They are mentioned in Chris Thrales’ book, where he says that the Eclipse u/l (introduced in 1988) used the “perfected unit as had been used on later versions of the Omega”. Which suggests that the later trigger came in no later than 1988 (Omegas were made 1984-1994).

[old goat]

As I recall the modified trigger was available, direct from Webley,around a year after the rifle was introduced, I believe the "Nylon Darning Needle" spring guide should have been fitted from the start but a steel guide was fitted due to supply problems.
I had a clear out a few years back and give the purchase paper work from Webley to Chris Thrale otherwise I would have been able to confirm dates.

Still have and shoot my Omega very nice gun

[abellringer]

Lots of useful stuff appearing on here, in answer to one post I will try and add photos of some of the trigger parts that are in the Omega I am trying to sort out.
The trigger has indeed been modified in that a tiny coil spring has been fitted into it, this is at the point where the front end of the lower leg of the rear sear ''touches'' the trigger. The trigger spring proper was so badly bent it just ''floated about'' and did nothing; the trigger adjusting screw has been cut so that it doesn't project beyond the trigger surface [no photo of that]. this means that a ''two stage trigger'' has been created; in that the trigger moves against the little springs pressure until it becomes squashed and the trigger then touches the rear sear's front edge; the upshot of this is a monumental change of leverage and it takes no feel-able pressure to discharge the gun; in fact it will self discharge on closing the barrel, or at random before that!!!I have now fitted a new trigger spring and a longer trigger adjusting screw, this now gives a longer '' one stage '' drag type trigger action with variation by adjusting the screw in the trigger.
However the trigger is still extremely light and I now have a new rear sear on order, hoping it will resolve things. I think that the overlap portion on the rear sear has been reduced to give a lighter let off, as the front to rear sears overlap is almost non existent; I have now had this trigger apart so many times I can almost strip and re assemble in my sleep so any advice I have I am only to glad to pass on if anyone asks.
Please have a look at the photos and let everyone know your thoughts.
abellringer

https://i.imgur.com/j18TaQu.jpg
https://i.imgur.com/iPaGTmG.jpg
https://i.imgur.com/GwEAJ6L.jpg
https://i.imgur.com/qkWK2F1.jpg
https://i.imgur.com/TfhgiBW.jpg
https://i.imgur.com/yeJvBCb.jpg
https://i.imgur.com/DKF7zHu.jpg

[Thegreg]

Your main sear looks in really good condition, the sear face is still flat & crisp with no visible damage (in the photo's). The auxiliary sear doesn't look too bad either but the pics aren't quite as clear.

I'd check the sear face of the piston slot. I had an Omega which had this face butchered with a file, presumably to lessen the release angle and reduce trigger pull. It was an epic fail, still worked but trigger functionality was terrible. I had to re-cut the sear face on the piston to the correct angle and re-harden.

Cheers
Greg

[bill57]

Your trigger is quite different fom mine, so I can't comment on whether the coil is original or correct. The trigger adjust screw appears to come through the trigger at quite a different angle fom mine.
I agree with Greg, though, that your sears don't look as if they've been messed with, and his point about the latching on the piston is a good shout.

[bill57]

Trouble is that there aren't enough Omega triggers around for there to be a pool of experts

Well done - with you and Donald, we now have two experts

[thisisdonald]

Lol.. no expert here mate, but I appreciate the sentiment! I'm just a tinkerer like most, but learned a long time ago to take photys!
Glad you got it back together and working safely.

[abellringer]

Thanks but like Donald, not really an expert, just a nosy enthusiast haha; but I do like to keep guns and shooters going as much and as long as possible. Have to say this forum is great for doing just that, always people willing to help, advice for one person often benefits many others and I'm glad I'm part of that.
Again I have to say many thanks for the help given, gun now working fine, parts a bit pricey though, but you can't do without them.
If anyone needs help on this trigger I think we have sorted most of the problems and the one I had was certainly not standard, but as this was my first Omega, I was certainly confused by the layout and it just goes to show not all tuned guns are better than standard ones; and I have to say it's a bit worrying that a supposedly improved gun was in fact so dangerous. Also it showed up several variations of trigger assy's. which is always a help to first time service / repair enthusiasts.
Big pat on the back guys.
So have a Merry Xmas and Good New Year everyone; and lets continue 2019 as we end 2018
abellringer

[bill57]

When it comes to airguns, it's implicit in the term "tuning" that the person doing the work knows what they're doing. Sadly this is frequently not the case - one golden rule is that playing about with sear engagement is a very dangerous road to go down.