Worn crankshaft keyway, just cut a new one?
 

Hey guys,

I've got a bp4w engine with a worn keyway, but I'm not keen on the locktite fix since it'll probably be built as an interference engine.

I came up with the idea of cutting a new one 180 degrees from the worn keyway and putting the timing belt gear on upside down (and adding a new timing mark).
This seems solid logic to me, but I'm not really seeing this being done as a repair when I search for it.

Am I overlooking something or should I just go for it :P?

It's usually not done because replacement cranks are fairly common and cheap. Not worth the extra hassles, for the most part.

If you have the equipment to do it, go for it.

This might do what you need.

I've seen this crank saver on the social media a couple of times before.
The info on it is a little sparse.
It looks like you would need a longer crank bolt and I'm not sure how this would be superior to the loctite fix.