Sounds like you have a serious engine problem. Good oil pressure is critical to its survival. Most commonly wear takes place in the engine bearings. That makes it easy for the pressurized oil to run out rather than hold pressure. The resulting low pressure fails to isolate moving parts, which is what the oil is supposed to do, so even more bearing wear takes place. As they wear the very precise clearances between the crankshaft and bearings increases until you can hear the parts banging against each other. The more you run the engine the more wear will take place until something breaks. The constant hammering on the connecting rods can cause one of them to break or the low oil pressure will prevent oil from being sprayed onto the cylinder walls to lubricate the pistons. The pistons are made of aluminum and will scuff and tear apart very quickly. If the engine continues to run it will overheat due to that friction and there will be so many damaged parts that it won't pay to try to rebuild it.
Monday, July 22nd, 2013 AT 10:03 AM