Thursday, July 9, 2009

Crosman 147 BP Stock Refinish, Part 1

Another gun from the "doesn't get used pile" is a $35 gun shoppe acquired Crosman 147 BP multi-stroke pneumatic. Due to it's trigger arrangement, it's what Crosman collectors call a second variant and therefore from around 1965 or 1966. The 147 BP is the .177 version of the .22 caliber Crosman 140. The BP stands for BB/Pellet. I didn't even realize that it was the BP model until I cleaned the bolt and found the magnetic tip designed to hold the steel BB. Anyway, I brought it home, and confirmed it leaked like a sieve.

Rambling airgunner sidebar: This gun is probably responsible for any and all inner hatred I harbor for multi-pump pneumatics. I believe I disassembled the rifle somewhere around 12 to 14 times. You've seen Army recruits assemble their guns blindfolded? Yeah, I can do that with the 147. At first, the question was, "where isn't it leaking from?" Spring piston guns? I cut my teeth on. CO2 guns? I can figure out. Single stroke pneumatics? OK, can do. A multi-stroke pneumatics from about 1966 with a bad pump cup, bad check valve, and bad exhaust valve? Are you kidding me? This was a gun just full of learning curves.

Eventually though, the gun was repaired and set aside--being deemed too ugly to shoot.

Lots of raised grain and a few dings and dents in the wood. I recently refinished a Crosman 180, and I wanted a similar cosmetic transformation. Of course, the gun is actually in fine shape considering it's age. The fact that it still shoots--and shoots well-- is truly a testimony to the engineering and materials used 43 years ago. Hopefully by now, readers know I'm pretty tongue-in-cheek when I'm talking about these devilishly designed multi-stroke guns...
Essentially, I think my vintage Crosman problem is one of aesthetics. I suppose I just can't warm up to old varnish finished air rifles. If I'm going to keep it, I guess it's gonna have to get gussied up. At the risk of being labeled as a one-trick pony and being permanently type-cast, I'm afraid that this refinish will be sort of similar to the Crosman 180 refinish previously mentioned. Sorry 'bout that. The guns share a lot of similarities not only in finish, but also in several components like sights and trigger mechanisms--which is too be expected as the guns overlapped during time of manufacture. It's hard to not make the comparison as I've been working on both guns almost simultaneously. The 147 got a few modifications (rear sight and recessed stock nut) that won't get blogged as they're already covered in depth during the 180 write up.

Sort of jumping ahead, I pulled the action and hit the stock on the sander.

Half an hour later, I was about here.

While I'd decided on a simpler refinish than the 180 got, I still wanted some pride of ownership (multi-stroke not withstanding--grrr).

Mixed up some fast setting 2-part epoxy, adding a liberal amount of the sawdust from the above sanding/stripping step...

and filled the dents and dings. Overfill slightly.

A chicken pox stock.

The next day, I lightly sanded all the filled areas.

The pump arm was a slightly bigger hurdle. The lever arm is held by two roll pins--and the holes don't go completely through. How do you get them out??? I found a very small drill bit that passed through the center of the roll pin. Using the drill press, I drilled through the wood on the far side.

You can just barely see the holes--they're that small.

The small holes become a guide.

Using a larger diameter bit that matched the OD of the roll pin, I drilled the guide holes out till I hit the roll pins.

Now, I've got holes on both sides of the pump arm.

Set a drift.

And hammer the pins out.

One more time.

And we're free.

This seems somehow all too familiar...

Wanted something that looked good, but didn't take 2 weeks of free time to finish. I scrounged around and found a couple old Weihrauch butt pads that looked sort of promising.

At some point, I also made a clean cut on the butt of the stock for the rubber pad.

I think this came off a Beeman R1 a few years ago.

Like the 180 stock, I sanded the butt of the 147 BP on a granite plate until it was truly flat.

Then I sanded the rubber pad dead flat as well.

A transfer punch located the upper screw hole.

This was followed by drilling and snugging down just the single upper bolt.

Once the upper bolt was snug, I repeated the transfer punch, removed the pad and drilled the second, lower screw hole. Here, I've reinstalled the pad and begun to tighten the second screw.

It's oversized to allow for fitting. Unfortunately, I didn't think the 2 screws held the pad tight enough to the wood for the sanding. Hand pressure alone was gapping the pad too much for my liking.

Yeah, Gorilla Glue. I love this stuff. Now I'm in limbo as I wait for it to dry.

More to come.


Burhan said...

How do I get a butt for my Diana 35

Nick Carter said...

Try JG Airgun or Chambers in the UK.

derrick38 said...

Nick sells Morgan adjustable butt pads. They're superb.

Anonymous said...

Can you tell me how you figured a way to fix it? Because i have the same exact gun and it wont pump any air at all.

Nick Carter said...

We've done a ton on the 140 series rifles: