RSX L4-2.0L (2005)
Valve: Service and Repair
Valve Seat Reconditioning
Valve Seat Reconditioning
1. Inspect valve stem-to-guide clearance. If the valve guides are worn, replace them before cutting the valve seats.
2. Renew the valve seats in the cylinder head using a valve seat cutter.
3. Carefully cut a 45° seat, removing only enough material to ensure a smooth and concentric seat.
4. Bevel the upper and lower edges at the angles shown in the illustration. Check the width of the seat and adjust accordingly.
K20A3 engine
K20A2, K20Z1 engines
5. Make one more very light pass with the 45° cutter to remove any possible burrs caused by the other cutters.
Valve Seat Width
Standard (New): 1.25 - 1.55 mm (0.049 - 0.061 inch)
Service Limit: 2.00 mm (0.079 inch)
