I try to keep the stupid questions to a minimum, but these two need an
answer, so I guess they're not really stupid.

1. There is a 6 mm allen head bolt about 2 or 3" behind the point on the
bottom of the crankcase on my 90GL 2.1 where the tranny and engine meet.  I
unscrewed it thinking I might get the last little bit of engine coolant and
to my surprise, engine oil seeped out.  since my air cooled buses didn't
have this feature, I'm wondering if this would be a good place to install an
oil temp. sender(if I could find a sensor with thread pitch that small) or
whether using the drain plug location would be better.

2.  Would also like to have a coolant temp. sending unit also and thought
maybe tapping into the thermostat housing might be an option.  Are there any
existing ports that would be less invasive than drilling in that plastic and
having the sender leak?

Would like to use one gauge and have an A/B switch nearby to switch from one
temp to the other.  Is this a screwy idea?

Dimwitted Moose and Flying Squirrel