Valve spring adjustment 177 Cyclone

The fast action, biathlon style sidelever shooter from FX (FX5100 / FX5100-22 / FX5102 / FX5102-22 / FX5103/ FX5103-22). Also known as BTAS (Ben Taylor And Son) Cyclone and Webley Spectre.

Valve spring adjustment 177 Cyclone

Postby Pauly5 on Sat Mar 25, 2017 10:34 am

I have ordered myself a Rob Lane regulator. I've been watching his videos, and while I don't know if I will get around to it, I certainly see the sense in balancing the valve spring with the regular pressure.
It will be set for 12 fpe. Has anyone done this adjustment, any tips?
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Re: Valve spring adjustment 177 Cyclone

Postby cyclone sniper on Sun Mar 26, 2017 10:01 pm

i had a reg in my cyclone an altros reg .. made it consistent but i didn't like the noise of the reg venting on every shot
FX cyclone .22 FAC,
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Re: Valve spring adjustment 177 Cyclone

Postby Solo1 on Sun Mar 26, 2017 10:16 pm

cyclone sniper wrote:i had a reg in my cyclone an altros reg .. made it consistent but i didn't like the noise of the reg venting on every shot


Never had any problems of venting sounds from the Lane's regulator in my .177 Logun Solo (FX Typhoon). Quiet as a mouse and at least 85 consistent shots at 12 ft/lbs
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Re: Valve spring adjustment 177 Cyclone

Postby Pauly5 on Mon Mar 27, 2017 10:33 am

Well that all sounds promising. Solo, did yours vent easily enough through the thread, or did you have to cut a groove?
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Re: Valve spring adjustment 177 Cyclone

Postby Solo1 on Mon Mar 27, 2017 9:57 pm

There is a tiny venting hole drilled in the cylinder about 45 mm from the breech. I didn't drill it myself because the Solo had a BTAS reg fitted when I bought it and Ben Taylor drilled the cylinder. The hole is really tiny (about .75 mm) and lays between the two O rings on the regulator.
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Re: Valve spring adjustment 177 Cyclone

Postby Pauly5 on Tue Mar 28, 2017 6:55 am

Ok, so I got the regulator that vents through the thread. Either way, I'm certainly looking forward to a flat shot string.
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Re: Valve spring adjustment 177 Cyclone

Postby Suffolk Rifle on Wed Mar 29, 2017 8:31 pm

Pauly5 wrote:Ok, so I got the regulator that vents through the thread. Either way, I'm certainly looking forward to a flat shot string.

Keep us informed, please - sounds better than taking a drill to the tube :D
.177 walnut stocked Cyclone Carbine
.177 mk1 Vermy
.177 walnut stocked L/W Typhoon
.177 synth stocked S/T Typhoon
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Re: Valve spring adjustment 177 Cyclone

Postby Pauly5 on Thu Mar 30, 2017 12:12 pm

Regulator arrived a couple of days ago. Nicely packaged, with great instructions. So tempting to just put it in, but want to record a shot string first to compare.

Has anyone had a play with the outlet valve spring in their Cyclone? The pack includes a drill bit for drilling the transfer port too. Of course it's not essential, but he has all you need to balance all aspects if you're up to it.

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Re: Valve spring adjustment 177 Cyclone

Postby cyclone sniper on Mon Apr 03, 2017 11:44 pm

how dose this reg vent ? via the brass tube cap ?
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Re: Valve spring adjustment 177 Cyclone

Postby Pauly5 on Wed Apr 05, 2017 8:17 am

Basically it vents through the thread at the breech end. The o ring is removed so it doesn't seal. So you can remove the regulator, put the o ring back in and you are back where you started, reversible.
The kit even has a replacement spring and a spacer for the outlet valve as well as a drill bit to drill the transfer port. Which of course isn't reversible.
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