240 L4-2320cc 2.3L SOHC VIN 83 B230FD (1993)
Piston Ring Axial Clearance
Check axial clearance of piston rings:
Upper compression ring:
0.060-0.092 mm (0.0024-0.0036 in)
Lower compression ring:
0.040-0.072 mm (0.0016-0.0028 in)
Oil scraper ring:
0.030-0.065 mm (0.0012-0.0026 in)
NOTE: Use new piston rings to measure clearance. If clearance is excessive, replace the piston.
Piston Ring End Gap
Measure piston ring gap:
-
Insert piston ring in cylinder bore. Use a piston turned upside down to bring piston ring into correct position.
-
Measure ring gap with the ring 15 mm (0.6 in) above cylinder bottom. Use a feeler gauge to measure ring gap.
Upper compression ring:
0.30-0.55 mm (0.012-0.022 in)
Lower compression ring:
0.30-0.55 mm (0.012-0.022 in)
Oil scraper ring:
0.30-0.60 mm (0.012-0.024 in)
Piston Rings, Side View
