Hey guys, I have an idea.
Do you think it would be suitable to apply some kind of oil that has a known smoking point to the cylinder so that, when it gets that hot, it will begin smoking and alert you to the problem?
I don't want to shell out the money for a fancy thermometer so I was thinking of alternatives and I realized oils or other fluids will smoke when they reach a certain temperature.
So, for instance, slathering a head or cylinder's fins down with some canola oil (http://www.goodeatsfanpage.com/collectedinfo/oilsmokepoints.htm) and seeing if it smokes for a temperature monitor.
Thoughts?