Join Date: Mar 2001
Location: Peoples Republic of Vermont
Lots of people seem to get scared out of their wits that their motors are going to blow up if coolant temperature goes over 200*F. Well, unless somebody messed up the installation, it won't. A temperature of 200-212*F is "Normal Operating Temperature" for the SBF. Below that coolant temperature the oil will not get hot enough to properly lubricate and purge itself of contaminants. Even temps of 220-230*F for extended periods, like climbing a long, long grade are okay... it's when coolant temps exceed 240*F that you can start experiencing localized steam pockets as the coolant around the top of the cylinder and combustion chamber starts to boil... from there things start to go downhill so it's time to pull over to the side of the road and run the engine at fast idle until the temps start to go down. This is, of course, not the procedure if something is wrong, like a broken fan belt, bad water pump, coolant loss or issue other than an extended heavy load has caused the heating.
What, me worry?
- Alfred E. Neuman