1991 Ford Mustang LX Underhood Trickflow Intake Manifold

With the engine completed we dropped the old oil and filled it up with a fresh dose of coolant before resetting the timing to 15 degrees BTDC. It is very, very important to replace the old oil whenever the timing cover has been removed. No matter how careful you are, some coolant from the water pump holes will work its way into the oil pan. The coolant will come out with the old oil but if left alone, severe engine damage will likely follow. Our engine indeed had a small amount of coolant in the pan but that was taken care of when the old oil was drained.

Getting Greedy - Getting Closer to Our Goals

With the engine completed we dropped the old oil and filled it up with a fresh dose of coolant before resetting the timing to 15 degrees BTDC. It is very, very important to replace the old oil whenever the timing cover has been removed. No matter how careful you are, some coolant from the water pump holes will work its way into the oil pan. The coolant will come out with the old oil but if left alone, severe engine damage will likely follow. Our engine indeed had a small amount of coolant in the pan but that was taken care of when the old oil was drained. View Related Article

1991 Ford Mustang LX Underhood Trickflow Intake Manifold

Car Research Guide