Corbin seat lock problem

Deets55 said:

View attachment 130869

Probably something like this

Click to expand...

That is the large nut that I'm missing?

No, that is what you use to lock the cylinder in place when a round hole is drilled in soft material like wood of even plastic. The proper hole is actually supposed to be round on the ends and flat on the sides to keep the cylinder from turning (same shape as the cylinder). It's normally called a double "D". Generally a punch is used on steel panels to make that hole, in other applications a round hole is drilled and the tits on that piece bite into the softer material and secure the cylinder, The nut in question can be seen in my first picture, screwed half way down the cylinder. I don't have any of those pieces near me right now, but I think you get the idea.



EDIT: Just added this picture, the nut is close to the cam (lever looking piece)

Deets55 said:

No, that is what you use to lock the cylinder in place when a round hole is drilled in soft material like wood of even plastic. The proper hole is actually supposed to be round on the ends and flat on the sides to keep the cylinder from turning (same shape as the cylinder). It's normally called a double "D". Generally a punch is used on steel panels to make that hole, in other applications a round hole is drilled and the tits on that piece bite into the softer material and secure the cylinder, The nut in question can be seen in my first picture, screwed half way down the cylinder. I don't have any of those pieces near me right now, but I think you get the idea.



EDIT: Just added this picture, the nut is close to the cam (lever looking piece)

Click to expand...

As I said in my earlier post Deet, You can clearly see that nut (and it's tight) in all four of my photos. so, that is not the issue.

Following your lead Rob I did a variation of your fix. The plate to which the barrel is attached was loose and wobbly but did not itself rotate when used. Like your friends it put unwanted stress on the vinyl coving in operation. My solution was to push the lock outwards to widen the gap between the plate and the shell and force epoxy resin between them to act as a glue rather than pot the barrel forever. Can’t see it coming loose in normal action especially as this is my spare seat for touring only.