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Home >> Mercury >> 1993 >> Capri Base, Standard >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> 1.3L 4-CYL - VIN [H] & 1.6L 4-CYL DOHC - VINS [Z,6] >> Engine Specifications >> Pistons Pins & Rings Specifications

Pistons Pins & Rings Specifications

PISTONS PINS & RINGS

Application In. (mm)
Piston
Clearance (Maximum) .006 (.15)
Diameter
1.3L (1) 2.793-2.794 (70.954-70.974)
1.6L 3.0690-3.0698 (77.954-77.974)
.010" (.25 mm) Oversize 3.0789-3.0797 (78.204-78.224)
.020" (.50 mm) Oversize 3.0887-3.0895 (78.454-78.474)
Pins
Outside Diameter
1.3L .7864-.7866 (19.974-19.980)
1.6L .7869-.7871 (19.987-19.993)
Inside Diameter .524 (13.309)
Pin-To-Piston Fit
1.3L .0003-.0005 (.0076-.0127)
1.6L .0002-.0005 (.005-.013)
Pin-To-Rod Fit (2)
1.3L (3) 0-.00102 (0-.026)
1.6L .0004-0011 (.010-.027)
Piston Ring Groove Width (Thickness)
1.3L
Compression (Top) .0602-.0608 (1.530-1.545)
Compression (Second) .0598-.0604 (1.520-1.535)
Oil .1583-.1591 (4.020-4.040)
1.6L
Compression (Top) .0598-.0604 (1.520-1.535)
Compression (Second) .0598-.0604 (1.520-1.535)
Oil .1583-.1591 (4.020-4.040)
Piston Rings
1.3L
Ring Width (Thickness)
Compression (Top & Second) .0579-.0587 (1.47-1.49)
Side Clearance
Compression (Top & Second) .001-.003 (.03-.065)
Oil Ring Snug Fit
Ring Gap
Compression (Top & Second) .006-.012 (.15-.30)
Oil (Steel Rail) .008-.028 (.20-.70)
Limit .039 (1.0)
1.6L
Ring Width (Thickness)
Compression (Top & Second) .0579-.0587 (1.47-1.49)
Oil .1580-.1588 (4.015-4.035)
Side Clearance
Compression (Top & Second) .0012-.0026 (.03-.065)
Oil Ring .0012-.0026 (.03-.065)
Limit .0059 (.15)
Ring Gap
Compression (Top) .008-.0157 (.20-.40)
Compression (Second) .0059-.0118 (.15-.30)
Oil .008-.028 (.20-.70)
(1) Measured .65" (16.5 mm) below oil ring groove.
(2) This is a negative clearance (interference fit).
(3) Installation pressure should be 1100-3300 lbs. (500-1500 kg).