At 05:46 PM 9/10/2008, Ken Wilford wrote...
>Some people think you are talking about the rocker arm covers (valve
>covers most people call them) and are wondering why you would want to
>drill holes in them.

Try to follow the thread. I have _never_ mentioned drilling anything in
this thread. I'm wondering why you're putting words in my mouth.

>Unlike an air cooled engine, these covers do NOTHING to cool or warm
>the engine.

Of course they do. Oil flows through them, and gets cooler because
they're exposed to the air. I've _already_ said that I don't know how
important that is on a waterboxer. It's very important on an aircooled.
But the fact is, they DO cool the oil. Some people add external oil
coolers, even on water cooled engines, so there must be some importance
to that.