Robert J.Jaarsma wrote:
>I had the same problem once, worse the side gave up and cracked. It is
>usually caused by running with a higher pressure radiator(coolant cap).
>I had mine reinforced on the outside on both sides by a radiator shop.
>A "X" from corner to corner on either side will do the trick. Doesn't
>cost much and no more worries.
The heater core ends are the weakest part of the cooling system, and are
prone to blow with a higher pressure cap. In a tech session at SUNI I,
Tiger Tom recommended converting to a 14 lb. radiator cap, and said the only
thing that wouldn't take the pressure was (you guessed it) the heater core
ends. He recommended soldering a plate on them similar to that discribed
above. The advantage of running a 14 lb. cap is, of course, being able to
hold a higher temp (about 10 deg. F.?) without boil over. Whether or not
the 14 lb. cap is used, it's smart to reinforce the heater core ends.
Rex Funk
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