1985 Airmasters Tune

[Mach 1.5]

My 77 stalker doesn't have a solid guide in the back block but a steel guide like on the venoms of the day. Mach 1.5

[Shed tuner]

My 77 stalker doesn't have a solid guide in the back block but a steel guide like on the venoms of the day. Mach 1.5

Ahh, I get you... so stage 1 maybe just a replacement guide, and stage 2, a solid guide fixed in the block...

[mattyw1987]

Solid guide is stage 2.

I think Maximus point was that a well fitting guide is so important, he was surprised it wasn't stage-1.. hence the conjecture on fitting a spring to suit the guide for stage 1.

Sorry what I meant was I reckon they probably did fit a new spring guide in stage 1 but in stage 2 they state solid guide by which I took it they meant fixed guide where it’s fixed to the rear block?

[Shed tuner]

Sorry what I meant was I reckon they probably did fit a new spring guide in stage 1 but in stage 2 they state solid guide by which I took it they meant fixed guide where it’s fixed to the rear block?

Yeah, I think you are right...

[mattyw1987]

Yeah, I think you are right...

Wish the prices were still the same ha……

[evert]

........No bearing was added to the 85 because of the piston cut out.......

I'm thinking the 85 is a good candidate for buttons.

[Shed tuner]

I'm thinking the 85 is a good candidate for buttons.

for sure.. 3 buttons at 120 degrees would easily clear the rail cutout section

[T 20]

for sure.. 3 buttons at 120 degrees would easily clear the rail cutout section

No good Jon.

3 buttons would put one on the cocking lever slot, 4 at 90 degrees would be better.



All the best Mick

[Shed tuner]

No good Jon.

3 buttons would put one on the cocking lever slot, 4 at 90 degrees would be better.



All the best Mick

lol - Doh yeah, forgot about that little detail

In my defense it was early and I'd not had my morning coffee

[T 20]

lol - Doh yeah, forgot about that little detail

In my defense it was early and I'd not had my morning coffee

I'll let you off then, Jon.

[MartynB]

Great news that, where's my Tardis ??

[nurek]

Stage 1 - £30.00
FWB, HW35/77/80/85, Original 45
Deburr, spring, lube, size piston head, phosphor bronze bearing on piston.
No bearing was added to the 85 because of the piston cut out.

Stage 2 - £45.00
All of above plus fitting of solid guides.

Stage 3 - £60.00
Available on HW77 only
All of above plus piston runs on rear PTFE bearing supported by a phosphor bronze skirt and a forward PTFE bearing, compression chamber shortened to match. Choice of stroke length. Roller bearings were used to remove torque. On our ‘race guns’ we used to set them up with an Original 75 piston seal. These were very efficient but only lasted 500 - 1000 shots.

Thanks to RB for this info. Not bad for 1985.
Mach 1.5

As highlighted above, this information was originally posted by RB (= RustyBuzz=Richard Welham, 1/3 or Airmasters).

I notice he has not been online and hasn't posted for a while, does anyone know why?

Indeed, not bad for 1985, and RB's dad John Welham made the best fitting FT stock to match the tuning described above...

[MartynB]

As highlighted above, this information was originally posted by RB (= RustyBuzz=Richard Welham, 1/3 or Airmasters).

I notice he has not been online and hasn't posted for a while, does anyone know why?

Indeed, not bad for 1985, and RB's dad John Welham made the best fitting FT stock to match the tuning described above...

John made a stunning stock for my 124 and also tuned it, the walnut was fabulous