Civic EX Sedan L4-1668cc 1.7L SOHC (VTEC) MFI (2001)
Exhaust: 18.65 - 19.15 (0.734 - 0.754 inch)
9. Coat both reamer and valve guide with cutting oil.
10. Rotate the reamer clockwise the full length of the valve guide bore.
11. Continue to rotate the reamer clockwise while removing it from the bore.
12. Thoroughly wash the guide in detergent and water to remove any cutting residue.
13. Check the clearance with a valve. Verify that the valve slides in the intake and exhaust valve guides without exerting pressure.