How to fit a V-Mach tuning kit on a Weihrauch HW97K rifle [Step by step tutorial] Solves dieseling

You can skip the intro jumping to 3:35. Tutorial begins with the rifle completely disassembled. The fitted kit is rated at 16 joules.

Contents (serves as a step-by-step guide):
- 2:54 : Briefing on how to dissassemble the rifle
- 3:35 : List of materials needed for the tune up
- 4:40 : Instaling the new piston seal
- 5:05 : Fitting the piston sleeve
- 5:53 : Greasing the piston, the seal and cylinder
- 6:51 : Inserting the piston into the compression chamber
- 7:05 : Inserting the assembled cylinder into the action
- 7:22 : Assembling the cocking lever and the anti-bear trap
- 8:13 : Inserting two compression washers into the cylinder
- 8:38 : Applying grease behind the compression chamber
- 8:44 : Greasing the main spring
- 8:57 : Inserting the spring into the action
- 9:06 : Screwing back the rear block
- 10:11 : Screwing back the large bolt retaining the anti-bear trap
- 10:43 : Inserting the safety mechanism
- 10:52 : Mounting the trigger assembly
- 11:38 : Mounting the stock to the rifle
- 13:52 : Fitting the scope
- 14:54 : All done - overview of the surplus bits (compression washers, nylon washer, oil, grease and the old spring and seal)
- 15:01 : Final comment

Considerations:
- Bear in mind that older rifles with a serial number below 1446649 use a 25mm piston seal. Newer units mount a 26mm one.
- Check your country air rifle power limits prior to buying a tuning kit and chronograph the rifle after the tune up to make sure it falls within your country regulations.
- When disassembling the rifle make sure you don't lose the safety catch spring. It has a natural tendency to fly away.
- The coking lever & tirgger unit pins should come loose without too much effort. If you are struggling, try using the punch from the other side. (Same applies when mounthing them back).
- Do not apply grease on the piston seal face. Only coat the sides very sparingly or dieseling may occur.
- The trigger mechanism can be a pain to install. Use two pin punches to align the holes.
- The oil supplied in the V-Mach kit is only for the exterior of the rifle. Do not use it in the piston, cylinder, seal or spring.
- Some people lightly sand the piston and cylinder after degreasing. I haven't done it and the V-Mach fitting instructions omits this step as well.

Thank you for watching, hope you found it useful and happy field targeting. Any question/comment please feel free :-)

*Disclaimer: The information provided here is for informational purposes only. Follow the instructions at your own risk*

Видео How to fit a V-Mach tuning kit on a Weihrauch HW97K rifle [Step by step tutorial] Solves dieseling канала BarcelonaAustinA35