After fitting new brakes to my 63 Galaxie, I took it out for a test drive today. After a few stops to bed in the new brakes, I found myself on a nice straight stretch of road, so I decided to give the 406/462 a bit of a workout. Dropped the clutch in 1st, straight up to the rev limiter at 6900rpm, power shift to 2nd, more tire smoke, power shift to 3rd, still smoking the tires, into 4th. Backed off the throttle, looked down and noticed the oil light on. A quick check of the oil pressure gauge showed zero pressure, so I quickly shut it off and pulled over to the road side.
After doing a quick visual check to make sure no obvious problems, I checked that there was oil in the pan. After letting the car sit for a few minutes, we tried starting it. It fired right up, but no pressure, so shut off again. I had the car towed back to my workshop, where we pulled the distributor to check the pump drive shaft. It looked intact, no obvious problems. We tried to turn the drive shaft with a 1/4" socket, but couldn't a small enough socket down onto the shaft.
Tomorrow, I plan to go back to my workshop with my oil pump priming tool, and a small oil pressure gauge I use for priming. At this stage it looks like I may have to drop the sump, if not pull the whole engine.