Results 1 to 5 of 5

Thread: A simple service

  1. #1
    Join Date
    Mar 2011
    Location
    Sheffield
    Posts
    2,096

    A simple service

    I've just serviced my .22 HW45 and .177 Brum tempest.
    What a difference that makes! Both are much more smooth and pleasant to shoot and the Tempest is noticeably more accurate.

    A simple strip, clean and re-lube the spring with moly grease and and they both shoot like new (better than new in the case of the HW45, which are usually horrible when they leave the factory).

    A trick I learned a while ago, the HW45 piston chamber and piston head must be bone dry when assembled, I use brake cleaner spray to get all the old grease and oil out. The HW45 is such a beast than even a tiny spec of oil in the chamber will cause dieseling, which will make it loud, inaccurate and blow out the breech seal. BTW I once chrono'd a dieseling HW45 at well over the specified limit (it was shooting orange sparks out of the barrel, someone had sprayed WD40 into the cylinder).

    In the case of the Tempest a light machine oil on the cocking link and moly grease on the sliding shoe makes it so much smoother to cock.

    Maybe don't rush out and buy a tuning kit, maybe just give your springer a careful service and see how it feels?

  2. #2
    Join Date
    Apr 2012
    Location
    Retford, Notts
    Posts
    27,819
    Yes, I think you're pretty much correct in what you say, Bob, and a careful and considered strip, degrease and rebuild with the correct lubricants (and amounts of) by a caring owner will transform & refresh many a springer. As regards the HW45 specifically (and it's not something I've done myself yet), many do report benefits from the fitting of the Custom Air Seals parachute seal to replace the PTFE standard item.
    THE BOINGER BASH AT QUIGLEY HOLLOW. MAKING GREAT MEMORIES SINCE 15th JUNE, 2013.
    NEXT EVENT :- June 26 / 27, 2021..BOING!!

  3. #3
    Join Date
    Mar 2011
    Location
    Sheffield
    Posts
    2,096
    Quote Originally Posted by TonyL View Post
    Yes, I think you're pretty much correct in what you say, Bob, and a careful and considered strip, degrease and rebuild with the correct lubricants (and amounts of) by a caring owner will transform & refresh many a springer. As regards the HW45 specifically (and it's not something I've done myself yet), many do report benefits from the fitting of the Custom Air Seals parachute seal to replace the PTFE standard item.
    I've not heard of that - will have a google at it....
    Thanks

  4. #4
    Join Date
    Apr 2002
    Location
    Near Wimbledon, SW London, or Lusaka, Zambia
    Posts
    23,428
    yeah the ausie seal do seals better (reducing lube making it's way into the combustion chamber and holding more air) and give a softer piston landing.. and a much better shot cycle. Available on the bay.
    I'm currently looking for: crosman pumper spares (1322/1377/2289), a 2250/2260 main tube & valve, 25mm scope mounts to suit a 13mm BSA maxgrip, any thin drinking straw barrels (any cal), and any cheap, interesting, knackered project guns. Thanks, JB.

  5. #5
    Join Date
    Mar 2011
    Location
    Sheffield
    Posts
    2,096
    Found it I think:

    Evilbay 153296274781

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •