Project Hw85

[tomburras 2,730]

Vortex piston seal sorted, Thank you charlie caller he was a gent!

 

Edit. Also fitted the snap washer. I'll spin the piston in the drill again and gently sand the delrin short stroke to the same profile as the piston and polish afterwards.

[PeskyWabbits 464]

Standard is standard but if you are using something and not putting it in a museum or entering it into concourse competitions then usable alterations are fine.

 

It's like putting central heating and double glazing in an old building, or keeping it standard and combatting pneumonia every winter, and not having friends round.

 

My old Land rover still has the thirsty 2286 engine in it, but I put electronic ignition on it, save pissing around setting the points gap to get it to run evenly. And I swapped the sealed beam candles for Wipac halogen headlights so i could see the walls and the road.

 

If you started drilling holes in the stock, or fancy swirling on the cylinder, well that's like a max powering your Nova or whatever the Kevins drive these days.

[tomburras 2,730]

Ha ha nice peskywabbits I'm in the same boat with my landrover. Feel guilty upgrading stuff but it needs doing to make it more pleasurable for daily use. Some people have got in mine and laughed at the basic interior!. Externally you would never know anything different on this old HW85.

[si brown 8,486]

This is a great post Tom:)

DIY it's the future

Atb si

[tomburras 2,730]

Cheers si! Feel a bit guilty messing about with a classic like this (especially as I'm not really a proper airgunner) but had one of the these as a kid. As the story goes I was out with the shotgun as a kid in 1997 and when I came back to a friend who took me out with his shotgus and he had a hw85 in the corner of his quail shed. I saw the 85 and shouted wow! Always wanted one of these. He said you like that? Yes I said, take it with you he said. One of the most memorable moments and best things ever to happen in my childhood It then baught years of joy and top rabbiting memories, a pocket of pellets and lying out by Warrens on an evening. Its hard to shoot and kicked and twanged bigtime. Hence the reason I'd love another and will have the occasional wander with it. I'm more of a shotgun shooter a bit off topic for the airgun section but I'm off longnetting tommorow with the stinkers! But still love airguns and this hw85 is heart warming.

[si brown 8,486]

Huntings huntting Tom

Alls good, I started trapping and fishing/poaching trout as a kid

Anything goes still love me fishing but times against me:(

Anything that makes an air rifle more efficient is a plus be it old

Or new

Atb si

[tomburras 2,730]

Cheers si! Same here do a bit of every thing but for me I don't do any of it well lol. Spare times again't me... too do 12 hours most days just trying to make my way in the world! Enjoying every minuite spare and getting out doing what i love and also my bit and trying to keep everyone happy. Its tough but when i get older fingers crossed it will get easier.

[tomburras 2,730]

The vortek piston seal has landed

 

 

So got to work on the short stroke extension. I put the latch rod into a drill chuck and covered the top of the piston in tape to protect it and spun it nearly down to size....

 

 

I then popped on the vorteck Piston seal (top quality strong looking seal)

 

 

Then put the piston into the drill chuck and taped the end again and spun it a bit at a time until the short stroke extension and seal where flush with eachother and in between this testing it in the cylendar until the fit was perfect and moved smother down the cylendar with a perfect airtight seal (I put a bit of bum slide on to get a propper idea of fit) the result on the delrin short stroke and back of seal was this....

 

 

 

Well chufed and relieved! The blowtorch still hasn't arrived and I'm getting impatient so going to take the old spring to work to shorten and flatten the old hw spring to get an idea of lentgh I need to get the correct power before cutting the brand new spring.

[bigmac 97kt 13,812]

Top class thread this Tom

 

bet she is sweet when all is done and back together mate

 

and i bet she dose not kick like a mule any more if at all

 

atvbjimmy :thumbs:

 

PS, what bike is that in the pic it looks like an old trail bike

[tomburras 2,730]

It's really enjoyable! And been a steep learning curve. It recoiled and rattled like mad! And smoked like a black powder shotgun lol I was a bit shocked such a nicely made gun was so poorly finished and had such a desighn flaw. I'll show you the old cocking shoe at some point and the damage it did to the metal piston liner. Yes it is an old trials bike in the pic I'll find a pic if your interested ?....

 

 

 

Its a rebuilt 1991 fantic 305.

[si brown 8,486]

nice work tom

my living room floor looks like your work bench

atb si

[tomburras 2,730]

nice work tom

my living room floor looks like your work bench

atb si

Nowt wrong with that! Mine would be the same if I could get away with it.

[Jonjon79 13,358]

Yeah, I'll second that - Nice work Tom

 

I'm enjoying these updates. It'll be good to see a chrono string when you're done mate.

[bigmac 97kt 13,812]

It's really enjoyable! And been a steep learning curve. It recoiled and rattled like mad! And smoked like a black powder shotgun lol I was a bit shocked such a nicely made gun was so poorly finished and had such a desighn flaw. I'll show you the old cocking shoe at some point and the damage it did to the metal piston liner. Yes it is an old trials bike in the pic I'll find a pic if your interested ?....

 

 

 

Its a rebuilt 1991 fantic 305.

Thats a nice bike Tom very nice mate

 

climb up the brick wall of a house them old fantics

 

been more moto x with me and my sons and viz

 

had some nice ones and some bad ones to lol

 

we think we spend a lot of money on our rifles

 

spent 1000,s on bikes lol

 

i was more off them than on them as viz will tell you no dout lol

 

atvbjimmy :thumbs:

[tomburras 2,730]

Cheers for the nice comments guys! I'll stick some pics of shot string and groups up when it's done. Got a wedding to go to this weekend so won't be done till weekend after but ill get there!

 

And yes mac bikes are fun! And my riding sounds simelar to yours lol.