|
|
CYLINDER HEAD AND VALVES TSB Revision ENGINE OVERHAUL <2.4L ENGINE> 11B-37 VALVE SPRING limit, replace. Standard value: <Intake> 54.8 mm (2.16 inches) Minimum limit: <Intake> 53.8 mm (2.12 inches) 2. Measure the squareness of the spring. If it exceeds the limit, replace. Standard value: 2 degrees or less . VALVE GUIDE Standard value: <Intake> 0.02 − 0.04 mm (0.0008 − 0.0016 inch) <Exhaust> 0.04 − 0.06 mm (0.0016 − 0.0024 inch) Limit: <Intake> 0.10 mm (0.003 inch) . VALVE SEAT Standard value: <Intake> 48.33 mm (1.902 inches) Limit: <Intake> 48.83 mm (1.922 inches) VALVE SEAT RECONDITIONING PROCEDURE 1. Before correcting the valve seat, check for clearance between the valve guide and valve and, if necessary, 2. Using the seat grinder, correct to obtain the specified seat width and angle. 3. After correcting the valve seat, lap the valve and valve seat using lapping compound. Then, check the valve stem AK300718AD OUT OF SQUARE FREE HEIGHT AK300168 GUIDE INSIDE DIAMETER STEM DIAMETER VALVE AC AK300596 VALVE STEM SPRING AD VALVE STEM AK300385AD INTAKE SIDE EXHAUST SIDE 43.5˚ – 44˚ 20˚ 10˚ 65˚ 65˚ 0.9 – 1.3 mm 0.9 – 1.3 mm |