I drug this 1983 ford out of the trees. the last time it ran something happened to the oil pressure. It was about fourty below zero and the guy who tryed to start it said it turned over slow and fired but wouldnt start, then he plugged in the block heater and when it did start it didn't have oil pressure. he told me that someone told hin that a pin broke at the bottom of the destributer? Im not sure what to look for or how to raplace it so if any one can help me out that would be appreciated.