On Apr 14, 2:11 pm, "Capt. JG" wrote:
I'm considering adding a pyrometer to my boat.. the current temp gage is for
water, and I've heard from several sources that if there's a sudden
increase, it might not offer enough warning.

Something like this:http://www.livorsi.com/catalog/pyrometers.htm

However, I'm concerned about putting a hole in my exhaust manifold.

Anybody done this? Tips/tricks/things to watchout for?

--
"j" ganz

I'd just stick with the water temp gauge. Drilling and tapping cast
iron can be difficult, might lead to cracking.

Joe