I recently purchased a bostitch valve plate assembly (part number AB-942999) to fix a broken valve on my compressor. After installing the kit, the compressor ran well for about 5 minutes before I heard something break in the valve kit. I immediately stopped it and took it apart, to find that the torx screw holding on the connecting rod cover to the connecting rod had sheared, damaging the connecting rod cover itself.

I've tried to remove the rest of the bolt from the rod with a screw removal kit, with no luck. At this point I've pretty much entirely drilled out the bolt.

So my question is, am I screwed? Is there any way to fill and retap the connecting rod, or will I need to buy a whole new kit for it? I'm rather unimpressed that the new screw from the kit sheared almost immediately causing more damage.

Attached are some pictures of the sheared screw, the damage to the connecting rod cover, the rest of the screw in the connecting rod, and the state it's in now after my removal attempts.

Thanks for the help.

No wobble in the bearing that I can tell.

I think I'm just going to replace the connecting rod, I think the connecting rod cover is intact enough to reuse, and I have the original screw to connect the cover to the rod.

Do you happen to know if the A710100 connecting rod can replace this instead of the A610100? They look the same to me, minus the air intake on the A610100, which I no longer need as I have the new style valve kit with the intake on top.

Sorry, that was a mistype on my part, the old connecting rod is part number A610101