Last week I wrote that I had a starting problem with the key sometimes not
starting the starter motor. I had a switch, and replaced it, but it still
happens (once in three days�not too bad but not fixed).

I went into my stash of Vanagon parts and found the mechanical lock from a
1990.

Should I take the cylinder set out of my old one and put it in my new one,
or is it likely that the cylinder and brass tumblers are part of the
problem?

I have an assortment of brand new tumblers. Should I match them up until
the "old" key works with the "new" lock?

How do I get the tumbler out of the lock mechanism?

Thanks,

Jim