In article . com,
Joe wrote:
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.

I'm definitely concerned about breaking something that's fixed and
working. g

--
Capt. JG @@
www.sailnow.com