I will take the vacuum pump apart this evening and post pictures of the inside.
Might I suggest a possible series of events?
Story of a doomed engine:
First a lifter explodes into 4 large shards and lots of smaller pieces. This is the point at 80MPH where I start seeing black smoke out of my tailpipe and pull over. The car was rolling a moderate amount of black smoke and running a little loud when I pulled off to take a look at the damage. Seeing nothing visually wrong I kept driving to get to the a shop.
The car can still get to 50 MPH and is blowing black smoke so I figured it was limp mode for some reason even though there was no CEL. The crankcase is now a steel blender and is blasting pieces of steel and aluminum into the oil flow. a piece makes it's way into the pump and seizes the vacuum pump. The pump puts enough torque on the cam to deform steel and also unseats the cam pulley (which was torqued to 33 ft-lbs per spec). Now my performance is deteriorating rapidly as the time goes further and further out. And my car slows down to 20MPH with the pedal on the floor. Also lots of white smoke.
I stopped again just short the shop and disconnected the turbo, which made the engine run better with less air (not sure why). By now the timing is way off, it is running like crap and damaged beyond repair before I even make it to the shop.
Does that sound like a possible sequence?
Pictures of the vacuum pump will follow shortly.
Might I suggest a possible series of events?
Story of a doomed engine:
First a lifter explodes into 4 large shards and lots of smaller pieces. This is the point at 80MPH where I start seeing black smoke out of my tailpipe and pull over. The car was rolling a moderate amount of black smoke and running a little loud when I pulled off to take a look at the damage. Seeing nothing visually wrong I kept driving to get to the a shop.
The car can still get to 50 MPH and is blowing black smoke so I figured it was limp mode for some reason even though there was no CEL. The crankcase is now a steel blender and is blasting pieces of steel and aluminum into the oil flow. a piece makes it's way into the pump and seizes the vacuum pump. The pump puts enough torque on the cam to deform steel and also unseats the cam pulley (which was torqued to 33 ft-lbs per spec). Now my performance is deteriorating rapidly as the time goes further and further out. And my car slows down to 20MPH with the pedal on the floor. Also lots of white smoke.
I stopped again just short the shop and disconnected the turbo, which made the engine run better with less air (not sure why). By now the timing is way off, it is running like crap and damaged beyond repair before I even make it to the shop.
Does that sound like a possible sequence?
Pictures of the vacuum pump will follow shortly.