ORIGINAL: cyclops2
...OFNA car engines recommends about 260 F as a max head temp for + 28,000 in their ABCs.
Cyclops,
260 degreed Fahrenheit WHERE???
If you measure optically at the tips of the cooling fins, this is very easy to obtain.
If you use an extension thermo-couple, on the glow-plug gasket, to measure the temperature, it will not even idle this cold...
This is barely above the temperature of boiling water (212 F)...