Defensive driving means “always expect the unexpected.” The first step in driving defensively is to wear your safety belt — See Safety Belts: They Are for Everyone.
WARNING:
Assume that other road users (pedestrians,
bicyclists, and other drivers) are going to be
careless and make mistakes. Anticipate what they
might do and be ready. In addition:
- Allow enough following distance between you
and the driver in front of you.
- Focus on the task of driving.
Driver distraction can cause collisions resulting in injury or possible death. These simple defensive driving techniques could save your life.
Chevrolet Cobalt Service & Repair Manual. Engine Valve Seat Grind
It is usually recommended to send
head to machine shop for valve seat grinding.
A suitable valve grinding tool
kit is required to grind valve seats.
Valve guides must be in good condition
before grinding because a pilot is used in guide to center stones. ...