Monday, April 4, 2011

Crosman 105 Disassembly, Part 2

On I go…


04031120


The grip frame is held by two screws, just like on every other Crosman pistol of this type.


04031121


Grip frame.


04031122


The pivot pin for the sear was missing. I’ll find a suitable replacement.


04031123


There’s a nice slotted guide for the sear spring.


04031124


The safety spring was missing. The detent ball was still at the bottom of the hole.


04031125


The trigger pivot pin. Knurled at one end for retention.


04031126


The safety. A complex little part.


04031127


The trigger.


04031128


The rear sight. I removed the two setscrews.


04031129


Drifted it out of the dovetail.


04031130


The end cap is retained by two small setscrews.


04031131


It comes out a little under hammer spring pressure.


04031132


Then the spring comes out and the hammer…Can’t remove it yet as the cocking knob is in the way.


04031133


A screw retains the knob.


04031134


That’s a small spring washer for slight tension on the knob.


04031135


The hammer.


04031136


The bolt is held in by the cocking pin. It has to be unscrewed through the slot.


04031137


The cross hole had a spring in it that shot across the room. Live and learn. Maybe I’ll find it but more likely I’ll have to make a replacement.


04031138


Valve nut needs a special tool to remove it.


04031139


Valve nut.


04031140


I pushed against the inlet valve with a 3/16” brass rod.


04031141


The valve components.


04031142


Here’s how it looks assembled.


04031143


Inlet valve.


04031144


Exhaust valve. I’ll make replacement seals for both.


04031145


The whole gun apart. Now to reseal, replace parts and get some grips.

5 comments:

Scott said...

Nice tear down

Miles Jackson said...

The cross hole in the bolt actually has two ball bearings and a spring. My bearings measured 0.940" in diameter. My spring measured 0.998" in diameter, with and uncompressed length of 0.25". Hope that helps you find replacements.

Anonymous said...

Where can I get a valve nut removal tool for this pistol?

Nick Carter said...

I made mine.

Anonymous said...

I just picked one of these up on an online auction for $35.00 and it's pretty mush all there. It pumps up and shoots but will not hold pressure if left for long and when there's no pressure on it, the pump handle drops down about an inch. Is there something missing that's supposed to hold it up?