Quote:
Originally Posted by reflected
No they don't, Yay! 
However, engines don't shake anymore when they overheat, is that normal? |
I take it you've never overheated your car engine before? Did it start shaking? lol
An engine (any for that matter) is balanced either internally or externally and the only way it starts shaking (before mechanical damage) is if a cylinder starts misfiring. You'd be surprised how long an over heated engine can run on all cylinders smoothly. Anyhow, depending on the engine type, usually a blown head gasket, burnt valve etc (you lose cylinder pressure/compression/combustion is going where it's not supposed to) will the balance or in terms of IL2 "shaking" occur. If you overheat it long enough it could simply lock up completely due to friction, even before a misfire occurs and maintain a relatively smooth balance.
I've built quite a few engines (I'm a gear head). Hope that clears it up for you.