B3.9 and B5.9 Series Engines
Section 1 - Cylinder Block - Group 01
Start the oil pan capscrews in the holes not being used to
tie the gasket in place.
Remove the thread or wire holding the gasket in place.
Install the remaining two capscrews and tighten.
Piston features include high-swirl combustion bowl cast-
aluminum body and three-ring grooves. The piston for turbo-
charged, turbocharged/aftercooled engines includes a ni-
resist insert with a keystone profile for the top piston ring.
Always check the part number to be sure the correct con-
figuration is used during piston replacement.
In addition to the ni-resist insert, automotive turbocharged
engines also feature pistons with a hard-anodized com-