Engine Specifications; Piston Rings; Cylinder Liner Diameter - Mercury MerCruiser D2.8L D-Tronic Service Manual

ENGINE MECHANICAL

Engine Specifications

IMPORTANT: Specifications are for all models, unless otherwise listed.

Piston Rings

Cylinder Liner Diameter

NOTE: Measurements are made at a depth of 108 mm (4.25 inches) down from the top edge
of the liner.
Page 3A-10
Description
1st Compression
(Tapered)
Groove Width
2nd Compression
Oil Control
1st Compression
(Tapered)
Ring
2nd Compression
Thickness
Oil Control
1st Compression
2nd Compression
End Gap
Oil Control
1st Compression
Ring to Ring to
2nd Compression
Groove
Clearance
Oil Control
Description
Standard Class A
Maximum Out of Round
NOTICE
UNIT OF MEASUREMENT: mm (in.)
3.978 - 3.990 (.1566 - .1570)
0.070 - 0.102 (.0027 - .0040)
0.040 - 0.075 (.0016 - .0029)
93.995 - 94.015 (3.7007 - 3.7011)
SERVICE MANUAL NUMBER 22
Measurement
3.0 (.1181)
2.06 - 2.08 (.0811 - .0818)
4.03 - 4.05 (.1586 - .1594)
3.0 (.1181)
1.978 - 1.99 (.0779 - .0783)
0.25 - 0.50 (.010 - .020)
0.25 - 0.45 (.0098 - .0177)
0.25 - 0.58 (.0098 - .0228)
Not applicable - Tapered
Measurement
0.008 (.0003)
90-860074--1 FEBRUARY 2002