When the oil pressure light comes on.....

[ZfrkS62]

STOP THE CAR!!!!



out of a 1995 740i.

line from the ticket: Customer states oil light came on and then engine locked up

This thing came in at lunch 2 days ago. My service writer walked out to it and said he didn't think it would start but tried anyway. Sure enough it started cranking over but made a noise 50 times worse then nails across a chalk board.

After pushing it into my stall i noticed the service indicator lights were in the red which meant the car was way overdue for service. After checking the oil level (.5 qt over filled but clean) i tried cranking it again jst for the hell of it. Amazingly it fired up :shock: i didn't let it run though.

I pulled off the lower oil pan after draining the oil and lo and behold, there was a full bearing worth of shavings in the lower pan and the crankshaft was drier than Death Valley. After poking at the oil pump drive chain and realizing it was serving no purpose whatsoever, i pulled off the cover and found the pictured 3 pieces laying about.

What happened was the threads on the oil pump drive shaft that allow the nut to secure the sprocket to the pump, had snapped off and vibrated out of the nut causing the sprocket to come off the shaft effectively rendering the oil pump useless..yet the woman kept on going despite having the oil pressure warning on in the instrument cluster :roll: The result?

Remanufactured M62 Longblock= $11,500
Labor= 25.15 hrs @ $80/hr= $2,016
various small parts needed to transfer everything from old engine to new engine= around $1000

What she paid for the car=$7,000

She has yet to approve the work