Subject: Cracked Heads
Posted by Cliff Robb on August 11, 1997 at 13:37:01:
In Reply to: Cracked heads posted by John Hart on August 10, 1997 at
: I too have a heating problem, that I'm slowly sorting
: out. Unfortunately I should have replaced the fan clutch
: when I replaced the water pump. How do I tell if my
: head is cracked, short of removing it and having it checked
: at the machine shop.
Since your car is a '79, you have the early design head which is more
prone to cracking. Do you know if the car has ever overheated?
Hopefully not. Two things to look for: Oil slime in your coolant
overflow bottle, and/or milky slime in your oil. If neither of those
things exist, & the engine seems to run good, the head is probably
o.k. You ca also check your spark plugs to see how they are burning.
You would like to see a hazy light to medium brown color. Check the
other posts regarding overheating here & you will find all your
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