BTAS reg

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.

BTAS reg

Postby martin107 on Fri Dec 02, 2016 9:21 am

Hi,
How can I tell if it's a BTAS reg when you get it out of the air tube to look at and has anyone got any handy tips for servicing it.

Cheers

Martin
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Re: BTAS reg

Postby Solo1 on Fri Dec 02, 2016 1:11 pm

This is my BTAS regulator out of my Logun Solo/FX Typhoon. I'm pretty sure it's the same as the Cyclone model

Image


Image
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Re: BTAS reg

Postby martin107 on Fri Dec 02, 2016 6:56 pm

Many Thanks for the photo how do you adjust it please.

Martin
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Re: BTAS reg

Postby Solo1 on Fri Dec 02, 2016 11:43 pm

I never adjusted my one, I replaced it with a Robert Lane regulator.

I had to replace it because Ben Taylor has retired and the tiny (0.2mm) ball bearing valve housed in the brass piece on the far right has seized in place.

Image

Image

Looking carefully at the regulator it appears that adjustment is made by slightly loosening the nut on the left in the pic and turning the knurled brass adjuster (3rd from left in pic).

The items 2nd from left that look like washers are actually Belleville springs and act as a powerful mainspring. These allow the regulator to be shorter in length. I don't think you would need much adjustment at all to make a big difference and, in all honesty, without a proper pressure testing rig I don't think it should be attempted.
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Re: BTAS reg

Postby martin107 on Sat Dec 03, 2016 7:54 am

Many thanks,
Did one of Rob's regs fit straight in with the breather hole as I have had a couple off him and they work spot on with A 10/12 FPS spread on them.

Cheers

Martin
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Re: BTAS reg

Postby martin107 on Sat Dec 03, 2016 8:03 am

Also is there any special trick to getting the end off the airtube please
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Re: BTAS reg

Postby Solo1 on Sat Dec 03, 2016 4:01 pm

Robert Lane's regs fitted straight into my Solo with no problems or modifications. If your Cyclone is like my Solo then the end will just unscrew with finger pressure once all the air has been drained. If you do need to grip it with anything - like a vice, for instance - then only very minor pressure should be needed to unscrew the end cap. Hand pressure is all that's needed to screw it back up again.

When fitting the new reg I slid it in until I could just see the the front edge of it through the tiny pressure release hole drilled in the cylinder. Then very carefully pushed a blunt metal or wooden rod into the hole in a series of up and down movements to keep the 'O' ring pressed down until it passed the bottom of the pressure hole. If you don't do that then the 'O' ring will expand into the hole and have a notch clipped out of it, which can cause a leak

Image

I get 120 shots from my .177 Solo with the Robert Lane reg fitted and the shot-to-shot variation is only around 6 fps
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Re: BTAS reg

Postby martin107 on Sat Dec 03, 2016 6:55 pm

Thanks again, that's a good result 6FPS spread, Rob know's his business and gives good back up service.

Cheers

Martin
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