also that engine stuff is novel, but doesn't quite fit realism or ease of use in acf. large engines can usually be kept at the redline because they're low-rpm and governed, and usually liquid cooled. Other things will go wrong before it overheats.
i recommend you don't make the engine explode; just make it turn off and color itself black until you fix it with an acf torch or something, and make it smoke, not set on fire +1
was speaking more in general, not specifically tank engines. A lot of small motors had air cooling, at least a lot more than nowadays. The dark days before widespread use of permanent antifreeze, good cooling system seals, and high-quality sodium-cooled valves.
It looks like a headache, not an interesting feature and certainly not realistic. My 2 cents. It would have place if you had like a nox setup, or an engine iwth some insane P/w ratio, but for general use it's really quite pointless.
Edited:
I just got a new one and I like it. My toshiba's case fell the fuck apart in less than a year. I could pull the keyboard off without hand tools and carried my flash drive under the speaker's casing.