paulk73 151 Posted August 2, 2014 Report Share Posted August 2, 2014 just stripped and rebuilt my mates hw . it was slipping the cocking shoe because it was worn as was the cock8ng arm. it had an ox spring in it, that had been fitted about 20 years ago, so I changed the spring for a standard hw spring and top hat. I changed the shoe and the cocking arm. I replaced the breech seal but after reassembling it the power is only running at 8-9 ft lbs. I didn't change the piston seal. could this be the problem?? Quote Link to post
treecreeper 1,136 Posted August 2, 2014 Report Share Posted August 2, 2014 if its had new parts and you have only just stuck it back together it will probably creep up abit. Quote Link to post
Cedric 132 Posted August 2, 2014 Report Share Posted August 2, 2014 Does the piston move smoothly in the chamber? I've just done my HW80 and the piston took quite a bit of force to move. Fitted a new seal and have to trim it down a little to get it to slide. The rifle already had an OX spring fitted so i replaced it until I get a new, smoother one. The rifle was doing 9 ftlbs before and 11.5 after. Fitted a new breach seal as well. Quote Link to post
paulk73 151 Posted August 2, 2014 Author Report Share Posted August 2, 2014 how much will it creep up?? yes this piston seems to be moving freely enough Quote Link to post
Cedric 132 Posted August 2, 2014 Report Share Posted August 2, 2014 Is the seal as old as the spring? A new one is about a tenner. Quote Link to post
paulk73 151 Posted August 3, 2014 Author Report Share Posted August 3, 2014 think its poss the original seal. although not sure. its an 88/89 model. Quote Link to post
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.