The $100 challenge.....

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   Paul I'm doing exactly the same as you, learning as I go - YouTube is such a great resource.

Started on Stage 2 tonight but didn't get very far.  I'd sourced some 0.5mm PTFE sheet from my friends at AliExpress but I failed to take account of the fact that the piston is swaged in at the centre so it's too snug a fit on the spring.  I can get it in without too much effort but it's not free to slide as it should so I packed it in early.  Went inside to the warmth of the fire and placed an order for some 0.3mm sheet and several short rods of various diameters.  I should clarify that whilst I'm buying this stuff for this project, it's also workshop stock for my multitude of other retirement projects (when I finally get to them).

I plan to make a new seal out of the same stuff but I'm thinking I need some other material in the centre of it to absorb the shock as I don't think the Teflon will handle it for long.  The factory seal is pretty bad so I definitely need to replace it with something.

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KiwiTR6 Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: 04 Nov 2022 Location: Stratford Status: Offline Posts: 382	Post Options Post Reply Quote KiwiTR6 Report Post Thanks(0) Quote Reply Posted: 01 Sep 2023 at 2:58pm
	Paul I'm doing exactly the same as you, learning as I go - YouTube is such a great resource. Started on Stage 2 tonight but didn't get very far. I'd sourced some 0.5mm PTFE sheet from my friends at AliExpress but I failed to take account of the fact that the piston is swaged in at the centre so it's too snug a fit on the spring. I can get it in without too much effort but it's not free to slide as it should so I packed it in early. Went inside to the warmth of the fire and placed an order for some 0.3mm sheet and several short rods of various diameters. I should clarify that whilst I'm buying this stuff for this project, it's also workshop stock for my multitude of other retirement projects (when I finally get to them). I plan to make a new seal out of the same stuff but I'm thinking I need some other material in the centre of it to absorb the shock as I don't think the Teflon will handle it for long. The factory seal is pretty bad so I definitely need to replace it with something.
	Daystate Red Wolf .22 FX Dreamline .22 Diana Outlaw .22 AA S410 .22 HW98 .177 HW30 .177 Diana 340 E-Tec .177 FWB Sport 124 .177 Gamo 900 .22 Baikal IJ-22 .177 Crosman 2240 Custom .22 Brocock GP .22

Pauly5 Members Profile Send Private Message Find Members Posts Add to Buddy List Forum Moderator Joined: 11 Mar 2013 Location: Titahi Bay Status: Offline Posts: 1663	Post Options Post Reply Quote Pauly5 Report Post Thanks(0) Quote Reply Posted: 01 Sep 2023 at 12:44pm
	I love what you've done with the trigger. This has been a great thread so far, as it has brought out some great thinking from everyone. You give me too much credit Kiwi, I am really only regurgitating what i've learnt from others.

KiwiTR6 Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: 04 Nov 2022 Location: Stratford Status: Offline Posts: 382	Post Options Post Reply Quote KiwiTR6 Report Post Thanks(0) Quote Reply Posted: 01 Sep 2023 at 9:08am
	Thanks Pete, but if you want to see some really impressive work take a look at the stuff Pauly has been doing!
	Daystate Red Wolf .22 FX Dreamline .22 Diana Outlaw .22 AA S410 .22 HW98 .177 HW30 .177 Diana 340 E-Tec .177 FWB Sport 124 .177 Gamo 900 .22 Baikal IJ-22 .177 Crosman 2240 Custom .22 Brocock GP .22

RangerPete Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: 19 Apr 2023 Location: Cambridge. Status: Offline Posts: 1025	Post Options Post Reply Quote RangerPete Report Post Thanks(0) Quote Reply Posted: 31 Aug 2023 at 2:50pm
	Wow Kiwi, that’s some impressive work you’ve done so far. I’m looking forward to seeing what Stage 2 has in store 👍🏻
	Walk quietly, but carry a big stick.

KiwiTR6 Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: 04 Nov 2022 Location: Stratford Status: Offline Posts: 382	Post Options Post Reply Quote KiwiTR6 Report Post Thanks(0) Quote Reply Posted: 31 Aug 2023 at 2:43am
	Shimming the breach got rid of the awful slop, but I used a single piece of 8 thou shim as it was quicker to do but probably not ideal for alignment. I also grabbed some 4 thou at the same time which I may yet use on each side to keep the barrel central. However, given the pretty rough machining from the factory, it may not be aligned properly anyway I didn't notice any improvement from doing this, but the difference in the trigger is night and day.
	Daystate Red Wolf .22 FX Dreamline .22 Diana Outlaw .22 AA S410 .22 HW98 .177 HW30 .177 Diana 340 E-Tec .177 FWB Sport 124 .177 Gamo 900 .22 Baikal IJ-22 .177 Crosman 2240 Custom .22 Brocock GP .22

Billbobnz Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: 14 Jun 2020 Location: Ashburton Status: Offline Posts: 918	Post Options Post Reply Quote Billbobnz Report Post Thanks(0) Quote Reply Posted: 30 Aug 2023 at 3:58pm
	Ooooo I love what you have done to that trigger.also that red dot set up is really awesome. Has shimming the breech helped at all with groupings? As I'm counting on this to help with mine.....

KiwiTR6 Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: 04 Nov 2022 Location: Stratford Status: Offline Posts: 382	Post Options Post Reply Quote KiwiTR6 Report Post Thanks(0) Quote Reply Posted: 30 Aug 2023 at 3:53pm
	Last night I got stuck into the cylinder, drilled the transfer port out to 5.0mm and coned the entry using a couple of drills on the end of a long rod. Next task was to clean up the inside edges of all of the various openings including the modified port so any new gland I fit won't be gouged during assembly. For this I used a Noga de-burring tool where I could, some small round files (one curved for 2-stroke engine porting many years ago) and a chopstick with 400 wet & dry wrapped around it. I Left work early today and spent some more time on THIS project again this afternoon and tonight. I'd earlier grabbed some .008 steel shim material from the engineer's (had previously worked out this was what I needed) and cut a washer for the breech pivot to take out the slop. I'd also schemed a plan to improve the trigger by reducing its engagement. I threaded a brass cable ferrule out to 3.0mm to take a cap screw and silver soldered this to the trigger with a shorter and lighter spring found for the trigger return. Lastly, I cleaned up the piston, gland spring etc with brake clean and reassembled everything with moly grease on the sears and spring, Paslode oil on the gland and piston and my special oil on the breech components. After a few adjustments to the trigger stop holding the barrel as I tested it I was very happy with its performance. Did a few more tests holding the barrel and hitting the stock against the bench top and it held so on to the shooting! Unfortunately, not a lot of good news from here. The scope mount came loose, I knocked half a tin of JSB Exacts all over the floor and my chrony was giving me silly readings. After I got my s*%t together, I managed some good groups at 6m, but nothing wonderful at 10m and on checking, neither was really any better than when I initially mounted the red dot to the barrel. However, the trigger is super sweet to use and for Mercs - the 4.52 JSBs sit in the bore entry perfectly with no pressure required (those that didn't sustain skirt damage when I dropped them on the floor that is!). The breech pivot without the original slop is also nice and closure a lot move positive now that it's all well lubricated with my 'special' oil! Anyway, I'm going to call this Stage 1. I'll do some more shooting with it tomorrow to see if I can produce any groups worth showing and then it's coming to bits again. I have quite a bit more work planned with some Teflon sheet and rod having arrived today....
	Daystate Red Wolf .22 FX Dreamline .22 Diana Outlaw .22 AA S410 .22 HW98 .177 HW30 .177 Diana 340 E-Tec .177 FWB Sport 124 .177 Gamo 900 .22 Baikal IJ-22 .177 Crosman 2240 Custom .22 Brocock GP .22

Billbobnz Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: 14 Jun 2020 Location: Ashburton Status: Offline Posts: 918	Post Options Post Reply Quote Billbobnz Report Post Thanks(0) Quote Reply Posted: 30 Aug 2023 at 3:07pm
	Nice work you guys, I haven't had a chance to get any further onto mine. Lathe is arriving at work this week so will look at shortening my barrel and straightening it all up.

KiwiTR6 Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: 04 Nov 2022 Location: Stratford Status: Offline Posts: 382	Post Options Post Reply Quote KiwiTR6 Report Post Thanks(0) Quote Reply Posted: 29 Aug 2023 at 2:49pm
	Thanks Kruz, I'll take your advice and find something suitable
	Daystate Red Wolf .22 FX Dreamline .22 Diana Outlaw .22 AA S410 .22 HW98 .177 HW30 .177 Diana 340 E-Tec .177 FWB Sport 124 .177 Gamo 900 .22 Baikal IJ-22 .177 Crosman 2240 Custom .22 Brocock GP .22

mercs Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: 25 Apr 2020 Location: Stratford Status: Offline Posts: 341	Post Options Post Reply Quote mercs Report Post Thanks(0) Quote Reply Posted: 29 Aug 2023 at 2:14pm
	Continuing to experiment currently with SigAir Venom 7.87 grain pellets. Poor breech finish so pellet does not always centre when inserted and wonder if initially some air loss. I would have thought it would all straighten up in the barrel but did find i could improve things with a little extra effort. I used a Bic ballpoint to firmly insert pellet and results are worth further trials with a noticeable accuracy improvement. When put to the test this evening no better than previous results at 47mm OD. Excluding the pellet in the 5 ring still only 34mm so some way to get a back yard friendly 25mm group, back to the drawing board. Edited by mercs - 30 Aug 2023 at 2:21pm

kruzaroad Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: 03 Jul 2022 Location: Hastings 4 now Status: Offline Posts: 2622	Post Options Post Reply Quote kruzaroad Report Post Thanks(0) Quote Reply Posted: 29 Aug 2023 at 12:53pm
	A tip from someone who had used all his allocated pic storage, if you have a art program, collage them together. We can blown them up on screen to see them better. The grooves in my sears are bad. Maybe they will work for holding grease.

KiwiTR6 Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: 04 Nov 2022 Location: Stratford Status: Offline Posts: 382	Post Options Post Reply Quote KiwiTR6 Report Post Thanks(0) Quote Reply Posted: 29 Aug 2023 at 12:43pm
	Had some time this afternoon so attacked the sear (s?). All new to me but what's to lose, the trigger can't be any worse than it already is. I started off on the spring rod using 1200 wet & dry lubed with motor oil and wrapped around a small flat file (first photo after a little work with the 1200, was all black originally). It appears to be case hardened as expected and the 1200 was making hard work of it. The visible scratches were quite deep, so I went to a coarser 600 grit and then 400 grit to try and cut out them out. I gave up with a couple of minor ones left, then went back to 1200 for a while and finished off with cotton wheel and paint cutting compound on the Dremel. Not perfect, but a hell of a lot better than it was. I then removed the trigger sear and repeated the process. It wasn't anywhere as bad and so took less work. Again not perfect but near enough. I'll coat them both with moly grease on assembly and try a spacer between the trigger stop and cylinder to reduce the ridiculous amount of travel it has. I've also found some weaker springs to try on the trigger return. Moving forward.... Edited by KiwiTR6 - 29 Aug 2023 at 12:46pm
	Daystate Red Wolf .22 FX Dreamline .22 Diana Outlaw .22 AA S410 .22 HW98 .177 HW30 .177 Diana 340 E-Tec .177 FWB Sport 124 .177 Gamo 900 .22 Baikal IJ-22 .177 Crosman 2240 Custom .22 Brocock GP .22

Pauly5 Members Profile Send Private Message Find Members Posts Add to Buddy List Forum Moderator Joined: 11 Mar 2013 Location: Titahi Bay Status: Offline Posts: 1663	Post Options Post Reply Quote Pauly5 Report Post Thanks(0) Quote Reply Posted: 29 Aug 2023 at 10:15am
	It's good to see a spring guide in there, but the abundance of what looks like used motor oil can't be good. Great to see you all getting into it, I haven't had a chance to open mine up yet, let alone fire it.

KiwiTR6 Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: 04 Nov 2022 Location: Stratford Status: Offline Posts: 382	Post Options Post Reply Quote KiwiTR6 Report Post Thanks(0) Quote Reply Posted: 29 Aug 2023 at 10:00am
	The only 'special' tools I've used so far have been a small carbide bit in my Dremel to remove most of the peening on the pivot bolt and then a small cutter in my mill to remove what was left of the outer edge. I'm no machinest and my gear is pretty old but I generally manage to get stuff done. The material must be case hardened, my cutter worked off when I put pressure on it initially so I then resorted to the Dremel and once I got through it with the carbide bit it seemed a lot softer - but the edge was still very hard. To remove the spring I used a socket and a sash clamp held in my vice and took it very carefully. That's pretty much it so far.
	Daystate Red Wolf .22 FX Dreamline .22 Diana Outlaw .22 AA S410 .22 HW98 .177 HW30 .177 Diana 340 E-Tec .177 FWB Sport 124 .177 Gamo 900 .22 Baikal IJ-22 .177 Crosman 2240 Custom .22 Brocock GP .22

RangerPete Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: 19 Apr 2023 Location: Cambridge. Status: Offline Posts: 1025	Post Options Post Reply Quote RangerPete Report Post Thanks(0) Quote Reply Posted: 29 Aug 2023 at 9:37am
	Managed to get one of those gamo Recoil Reducing Rails to use as a spacer to get the scope higher to clear the opening breech, but still not enough. So did some shoooting at 8m to test different pellets (10m open sights frustrates me too much, too much inconsistency) Tried 5 different types of pellets, and did a control group using the JSB exacts. Pellets I tried were: Diabolo Match flat point. Hades 10,34gr, boxer pointed, air chief flat point 8.18gr, gamo 10X 7.56gr, and exact 8.44gr Exacts are still on top 👍🏻 The two fire stock screws have loosened about 1/8th of a turn and seem to have setteled there, so I’m leaving them there. Now to start this journey into the unknown and take the thing apart. One question, do I need any special tools to dismantle, and more importantly, to re assemble?
	Walk quietly, but carry a big stick.