Re: Motor running hot? 210 Degrees!
I agree completely with the timing issue. I run Pontiacs and the timing has to be just about dead on or they run hot. Also check your fluid level in the rad. Water boils at 212*f or 100*c at sea level. Glycol with the pressure will raise the boiling point. If the level is low you may be getting steam pockets in your cooling system and that is where the rumble is coming from. Whatever you do, don't touch the rad cap until that thing settles down. I've seen coolant come up out of a rad like a geyser, hit the underside of the hood and cover the poor guy trying to add water to his rad. That leaves a pretty good mark that you don't forget too soon even if you are only a spectator. Good luck.
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