Beeman Sportsman 1000 Repair



Author Topic: Beeman Sportsman 1000 Repair  (Read 606 times))

Offline agdodge4x4

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Re: Beeman Sportsman 1000 Repair
« Reply #20 on: September 24, 2018, 10:43:30 AM »
I am seeing I have the option to buy just a pair of piston seals for this gun OR I can buy a seal, piston body, spring guide and seal screw.  What circumstances would warrant one buying a new piston body and spring guide instead of just reusing everything and getting a pair of seals??
  • Hempstead, TX, USA

Offline Roadworthy

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Re: Beeman Sportsman 1000 Repair
« Reply #21 on: September 24, 2018, 12:06:27 PM »
After listing all those parts you never said whether it was a tune kit or individual parts.  If they're sold individually that may be a spare parts list.  Had you damaged the piston and/or screw during disassembly I can see the advantage of an available spare.  The spring guide is frequently some type of plastic or nylon and can be broken.  If your only damaged part is a piston seal that's the part to get.  I don't know the gun at all so I can't tell you why they're in sets of two - if they're sold that way.  Perhaps they don't hold up well.
If they are as poor as they appear you could probably still score a seal at Air Rifle Headquarters or Vortek.  I recall yours was about 26 mm.  Too large can be sized down.  It's a lot harder to add material to one that starts too small.
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Offline agdodge4x4

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Re: Beeman Sportsman 1000 Repair
« Reply #22 on: September 24, 2018, 03:20:10 PM »
Yeah, these are factory parts available in kits.  Just OEM Stuff.

Option 1:
Two Piston Seals

Option 2:
Piston Seal
Seal Screw
Piston Body
FRONT Spring Guide


My spring front spring guide is steel.  The fact that this kit was available made me question whether it was needed.  I can't see how you could damage a chunk of steel like a piston body.

I'll just get the seals.
  • Hempstead, TX, USA

Offline Roadworthy

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Re: Beeman Sportsman 1000 Repair
« Reply #23 on: September 24, 2018, 03:46:47 PM »
Piston damage could occur from wear on the cocking area or the sear latching area could become rounded and no longer latch.  One could also damage the seal retaining screw hole threads.  I do not know how likely any of these possibilities are but they ARE possibilities.
Given the track record of oem seals on that gun I'd probably get them elsewhere - but that's me.
If you want to smooth you gun out a bit polish the ends of your spring while it's apart.  I use 150 grit wet or dry paper on a flat under water.  Hold the spring perpendicular to the flat and work in a circular motion.  It sounds simple but it makes a real difference.
  • Near the Southern Coast of Washington State
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Offline agdodge4x4

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Re: Beeman Sportsman 1000 Repair
« Reply #24 on: September 24, 2018, 07:42:09 PM »
I spoke to a technician at Pyramyd.  They do not have the seal in stock, and expressed concern that the supplier when they come in may be different from what is pictured.  He actually suggested I order one out of the UK for a Norica.  Seal is 26mm, they sell the screw and breech seal as well.  He said that seal should last the lifetime of the gun.  So...now we wait!
  • Hempstead, TX, USA

Offline Roadworthy

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Re: Beeman Sportsman 1000 Repair
« Reply #25 on: September 24, 2018, 08:23:07 PM »
Your gun takes a 26 mm seal.  That's what I thought.  That's about 1.024".  I still suggest Air Rifle Headquarters as a potential source for your seal.  I think it will hit pretty close to right on:  http://www.airrifleheadquarters.com/catalog/item/251485/43077.htm  They call it their Apex Small Seal.  As I recall it's just over an inch in outside diameter.  If it's too large it can be resized.  There are seals on either side of it size wise but I think that's the one you're after.
  • Near the Southern Coast of Washington State
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Offline Horatio

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Re: Beeman Sportsman 1000 Repair
« Reply #26 on: September 24, 2018, 11:53:24 PM »
You guys are tempting me to get a B19 just to tune it up.

Iíve only had one, and thought it was wretched compared to a B25 or Remington Express. Of course not close to a D48.
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Offline agdodge4x4

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Re: Beeman Sportsman 1000 Repair
« Reply #27 on: September 25, 2018, 09:37:09 AM »
Roadworthy,

I would get them there, but those seals are not of the same shape and form as the one on my rifle.  I have attached what mine look like.  These are secured to the piston with a screw.
  • Hempstead, TX, USA

Offline agdodge4x4

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Re: Beeman Sportsman 1000 Repair
« Reply #28 on: October 04, 2018, 08:41:59 PM »
Alright.  I got my parts in.  I ordered Norica parts from Airgunspares.com in the UK.  I got a new piston seal and a new seal screw. 

PROBLEM.

The seal fits the cylinder fine.  The seal fits the new seal perfectly, very tight tolerances.  The new screw does not thread into my piston body as the screw is a hair bigger in diameter.  My old screw does not fit the new seal as the HEAD is to big around for it to sit recessed in the seal.  Also, the shoulder on the old screw is not quite as tall.  So...I see that I have a few options here:

1.)  Modify the seal to accept the OLD screw.
2.)  Re-tap the piston body to accept the NEW screw.
3.)  Put the old screw in a drill and turn it against a file to reduce the head diameter so it fits the new seal.  The shoulder will still be short, which will result in the seal being 'squished' a bit more, but I don't have any other choice there.
4.)  Throw all of that in the trash and get a new seal, piston body, and screw from Beeman directly.  (This not worthy because the seal not worthy and its going to disintigrate again.


What do I do here?  How critical is this?

Right now, I am leaning toward option 3 as I have most control over the outcome.  ,I want to  use option 2 but Option 2 is a risk.
« Last Edit: October 04, 2018, 08:45:50 PM by agdodge4x4 »
  • Hempstead, TX, USA

Offline airsenal

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Re: Beeman Sportsman 1000 Repair
« Reply #29 on: October 05, 2018, 05:06:57 PM »
I'd do that too - also might be good idea to use medium thread locker goo like Blue Loctite or Vibra-tite. You should be shootin' that rifle soon ;D
  • Kansas City, MO 64118 U.S.A.

Offline agdodge4x4

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Re: Beeman Sportsman 1000 Repair
« Reply #30 on: October 06, 2018, 04:04:06 PM »
Well, I got it back together.  The first shot seems to poop out some &^^& into the barrel.  Not sure what.  The cylinder was clean.  I ran a snake through it and got it cleaned out.  It shoots now, and it hits HARD.  The issue is that I can't get the "dang" thing on paper at 40 feet.  I am using the open sights, and when adjusted to the extreme far end of its range, it still hits about 6" high and 4" to the right.  On top of that it shoots a group that seems to be minute of barn.  No more adjustment.  I'm not worried about elevation, I can fix that by moving back.  I cannot, however, fix windage.  I tried with two different kinds of pellets.

One is some kind of crosman with a ballistic tip plastic insert, the other is some old pellets I had from 20 years ago as a kid.  Those were used in my Crosman pump up pellet gun and I could nail a blackbird in the neck at 25 yard without a whole lot of issue.

It would be cool to have a nice strong pellet gun though.  Most of what I know about FIREarms does not apply to these spring type guns so I need some guidance.
« Last Edit: October 07, 2018, 12:58:00 AM by agdodge4x4 »
  • Hempstead, TX, USA

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