Sharp Innova cracked breech

[jirushi]

After hitting the "send" button for my Sharp book yesterday (to the man who will do the layout), I decided to celebrate with a bit of tinkering.
4 guns to work on:
2x BSA Light Pattern, Crosman 622, Sharp Innova.

The Innova was lovely to work on. An early example, without transfer port tensioning screw, but with 3 screws through the trigger guard.
The stock needed a bit of CCL oil, and I adjusted the trigger. On test firing, I could feel quite a bit of air escaping from the side of the breech, with my usual four pumps.
On closer inspection, the breech appears to have a crack. Probably from the valve stem hitting the rear of the breech since the eighties. I have a feeling that the crack has worsened over the last few shots.
I wondered if there are fixes for this problem?

Cheers,
Louis

[colin g]

Looks like your block is almost in half Louis, I would finish the break then glue it. You have nothing to lose mate.. Col.

[jirushi]

That is a good idea Col. Cheers.
What kind of glue would you use?

[Jakestenx]

I also had one of these crack at exactly the same place, could not repair it unfortunately, a lovely rifle in it's day.

[colin g]

That is a good idea Col. Cheers.
What kind of glue would you use?

Probably J-B Weld 50139 Plastic Bonder. And it dries black. They also do super glue plastic bonding these days. Col.

[BC312]

You could seek a 3d modeller and get one printed, take a bit of computer work to get the measurements sorted, or get one machined. Plastic is a funny thing, it can break down deteriorate and go brittle and crack as in your cases. I wonder if other Innovas have or will go the same way.

[colin g]

You could seek a 3d modeller and get one printed, take a bit of computer work to get the measurements sorted, or get one machined. Plastic is a funny thing, it can break down deteriorate and go brittle and crack as in your cases. I wonder if other Innovas have or will go the same way.

Yes but normally with incorrect pumping methods, Pumping the rifle holding the pistol grip causes most fractures. Its just not meant to be pumped that way. It has to be held over the scope rail and will last more than a lifetime. Col.

[jirushi]

You could seek a 3d modeller and get one printed, take a bit of computer work to get the measurements sorted, or get one machined. Plastic is a funny thing, it can break down deteriorate and go brittle and crack as in your cases. I wonder if other Innovas have or will go the same way.

Thank you for your advice. That is a good idea. I will try to repair the breech first, to keep things original. But there is quite a big chance that it won't work. We'll see.