2004 Bombardier Outlander 330/400 Factory Service Manual, Page 140Get this manual
Subsection 09
Section 03 ENGINE (CYLINDER AND HEAD)
VALVE STEM DIAMETER NEW MINIMUM EXHAUST INTAKE 4.956 mm (.1951 in) 4.966 mm (.1955 in) NEW MAXIMUM EXHAUST INTAKE 4.970 mm (.1957 in) 4.980 mm (.1960 in) SERVICE LIMIT EXHAUST INTAKE 4.930 mm (.1941 in)
Ensure to seat valves properlyApply some lapping compound to valve face and work valve on its seat with lapping tool (see VALVE GUIDE PROCEDURE below)Measure valve face contact widthNOTE: The location of contact area should be in center of valve seatMeasure valve seat width using caliperVALVE SEAT CONTACT WIDTH NEW EXHAUST INTAKE 1.25 to 1.55 mm (.049 to .061 in) 1.15 to 1.35 mm (.045 to .053 in) SERVICE LIMIT EXHAUST INTAKE mm (.078 in) 1.8 mm (.07 in)