Hw35 t.p

[landymick]

Lots of posts on HW35's & there T.P size so i thought i would check a few more,most like the older leather piston seal models & for the mostB i tend to agree with them.But there seems to be some models that don't follow the rules.
The Vixen we know is tuned & the port changed to suit so i believe as mine were secondhand so could have been altered any time.Early 70's .22 model 35's are 4mm with leather seal the Vixen in .22 is 3.6 (don't know .177) so in between 1970 & 1979 the port must be smaller.
I checked a couple of my35's with in-between serial numbers & the .22 versions with the Leather were 3mm.The point of this thread is when people say the old leather 35's shoot better which port are they using?
Over the next few months i will have a measure of the older .177's & the new .177 models as well as .22 to see if any thing has changed.I can only go back to 1968 though so if any one can check the very early ones that would be handy.
By the way my 4mm versions have all been Export models weather that makes any difference i don't know as the Export model refers to the style of the Walnut stock.

[TonyL]

I have three modern ones and an older (pre-safety) .177. TP looks HUGE. Will check out the size and advise, but pretty sure it'll be 4mm, Mick.

And it shoots extremely sweetly with a synthetic head!

[I. J.]

http://smg.photobucket.com/user/Airs...tml?sort=6&o=2

HTH
Ian

[CapitalBee]

Just got a 1966 HW35 apart for a clean down. .22, T/P is 4mm. Can anyone advise breech seal size? It's not the current design aND i THINK IT'S AN o RING, BUT DON'T WANT TO DIG IT OUT YET.

[landymick]

http://smg.photobucket.com/user/Airs...tml?sort=6&o=2

HTH
Ian

I.J in the picture are the pistons with the wrong cylinder,only the large transfer port 4mm on mine were fitted with the leather seal.
I also have a .22 leather piston seal with a 3mm T.P in a single sided safety HW35s.
I think early .177 no safety T.P are 3mm or so,that is what i will check & the later ones.
Did you check your Vixen's ? It would be nice to know if the T.P was different in each cal.
Cheers.

[I. J.]

I.J in the picture are the pistons with the wrong cylinder,only the large transfer port 4mm on mine were fitted with the leather seal.
I also have a .22 leather piston seal with a 3mm T.P in a single sided safety HW35s.
I think early .177 no safety T.P are 3mm or so,that is what i will check & the later ones.
Did you check your Vixen's ? It would be nice to know if the T.P was different in each cal.
Cheers.

Thats the way the guns came apart - although I hadn't had them from new.

I will check the Vixens.

HTH
Ian

[I. J.]

Ive just been to check. Im very reluctant to stick my digits between the cocked barrel and the cylinder single handed but a rough guide is that a 3.5mm Allen key will fit equally into the .177 and .22 Vixen t p so I would guess approx 4mm each.
As for the leather piston sealed '35 (.22). Again 'digit preservation' foremost a 2.5mm allen key would fit but not a 3mm so I would say 3mm.

Sorry its so vague but the next time I have them apart I will measure them accurately.

HTH
Ian