July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

Valve Guides

Fig 1: Measuring Wear In Valve Guides Using A Dial Indicator And Magnetic Holder

Courtesy of VOLVO CARS OF NORTH AMERICA.

Clearance between new components:

Inlet/Exhaust........0.03-0.06 mm

Maximum play for used components:

Inlet/Exhaust........0.15 mm