DaveB916 Posted August 28, 2009 Report Share Posted August 28, 2009 Firstly I do not advise anyone whom is not sure of their own capabilities or thge dangers of compressed air to follow my lead. Well long story short I have a MK1 Logun Pro in .20 cal, a lovely rifle. When retrieving it fom its home on the last two occasions the cylinder has been empty, obviously a leak somewhere. Now I have stripped and home tuned many a springer in my time but never really sought to repair a PCP, believing it to be a 'black art' and -covered in gore- dangerous if you get it wrong ! So I set to task, firstly removing the scope, silencer etc from the rfile and then the action from the stock. I then stripped the barrel and breach assembly from the cylinder/trigger mechanism. Then I charged the cylinder to 200 bar, and believe it or not dipped it in my indoor pond ! This clearly showed a leak around the cylinder to trigger block assembly. Now the important bit, de pressurising the cylinder, my Logun is fitted with an Air Arms style filler with a nipple on the end......no no not the shooter....lol So I placed the filler valve on a steady firm surface and gently applied pressure the the valve, hey presto, all air released form cylinder, now it was a simple matter of firmly holding and unscrewing the cylinder to reveal a chewed 'o' ring, must have been damaged during assembly at some point. A replacement 'o' ring was matched and a small amount of grease, used for Theoben type filler 'o' rings, was applied to the 'o' ring and the cylinder reassembled. Once again I charged the cylinder to 200 bar and again dipped action in pond, no leaks !!!! So a full reassemble of the parts including a few more new 'o' ings around the barrel and port area and well my 'baby' is fixed ! A good mornings work, just need to wait for rain to ease off and quickly re-zero ready for some bunny bashing this weekend. Dave B Quote Link to comment Share on other sites More sharing options...
LeeinVA Posted August 28, 2009 Report Share Posted August 28, 2009 I always thought they were a good looking rifle, and i am a fan of the .20? Is that a FAC rifle? Can they be had in a .25? Quote Link to comment Share on other sites More sharing options...
DaveB916 Posted August 28, 2009 Author Report Share Posted August 28, 2009 Lovely rifle and superbly engineered, I also have a full length Mk2 in .22 cal, both 12ft/lbs never seen a .25 cal one. Dave B Quote Link to comment Share on other sites More sharing options...
LeeinVA Posted August 28, 2009 Report Share Posted August 28, 2009 That girl is screaming to FAC.. Ever thought about juicing er up Quote Link to comment Share on other sites More sharing options...
Alanl50 Posted August 28, 2009 Report Share Posted August 28, 2009 Well done nice job its always pleasing to do a job like that yourself. Nice gun as well although Im a fanatical BSA superten man sorry Alan Quote Link to comment Share on other sites More sharing options...
mick miller Posted August 28, 2009 Report Share Posted August 28, 2009 Fixed. Simples. Quote Link to comment Share on other sites More sharing options...
DaveB916 Posted August 28, 2009 Author Report Share Posted August 28, 2009 That girl is screaming to FAC.. Ever thought about juicing er up It has crossed my mind as she is actually only doing 10 ft/lbs ish, but I don't know how to increase power to just under 12 ft/lbs. Dave B Quote Link to comment Share on other sites More sharing options...
carld41 Posted August 28, 2009 Report Share Posted August 28, 2009 would that indoor pond be a bath? Nice gun by the way Quote Link to comment Share on other sites More sharing options...
DaveB916 Posted August 28, 2009 Author Report Share Posted August 28, 2009 No its definitely a pond as seen here .....lolol Dave B Quote Link to comment Share on other sites More sharing options...
carld41 Posted August 28, 2009 Report Share Posted August 28, 2009 very posh Quote Link to comment Share on other sites More sharing options...
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