Hello all. It has been awhile since my last post. To bring everyone up to speed. I have a 1995 Dolphin RV with a F53 superduty engine. A family friend was able to get it running, plugged fuel lines. While it was running after about 5 min, the oil pressure dropped. The engine was turned off and was not started. I was not there when this happened but was told of the event. According to the family friend that got it going, a “pin broke” on the shaft under the distributor cap. This shaft goes down to the oil pan. This seemed odd so I inquired with another mechanic and was told that the oil pump was not primed. Failure to do so will cause the problem just described. Apparently an easy fix. Has anyone else heard of this? Thanks