Looks pretty oil soaked to me, too. I've had old wood become unstable in the inlet areas after a soak in Wonko's brew, you have to get the oil out, but, run the risk of weird shrinking, swelling, and cracks forming after the nasty comes out. Probably the newer the wood, the better Wonko's evil brew works, without the bizarre side effects.
If you don't care about looks, 3M 2216 structural adhesive to the rescue. Buy it at a local jobber (think machinery supply, not Home Depot), slather it on, clamp, and hope like hell you don't ever have to get it apart.
Best,
Ted
