Just before my last race, I started the car and no oil pressure, tickin lifters. Shut it down and pulled the distributor to find my oil pump drive shaft twisted like a licorice stick. (BTW, I used a prestone anti-freeze tester hose to pull the broken shaft.) Ok, so my pump is seized up. But why. It'll cost me at least a day to lift the engine, pull the pan and change the pump. What do you think caused the failure? Should I just replace the pump and see what happens? or Is there some preventive measures I should take. Thanks!