Xeno wrote:

> Just add gear to your list and delete pushrod. We are talking about
> driving the *camshaft*. gear, chain, belt. There are a few varieties of
> chain in use; single row, double row, hyvo.

Thanks. Had I done the job even once, I'd know more than I do, so I will
gladly take your word for it that there are three choices and we must pick
one of the three.
1. Gear
2. Belt
3. Chain

We have to pick one.
Which is the most reliable?