Mercury D4.2L D-Tronic

ENGINE MECHANICAL SERVICE MANUAL NUMBER 22
Page 3A-16 90-860074--1 FEBRUARY 2002
Engine Specifications (continued)
NOTICE
UNIT OF MEASUREMENT: mm (in.)
Crankshaft (continued)
D2.8L D-TRONIC - SERIAL NUMBER 0L098204 AND ABOVE, AND D4.2 L D-TRONIC - SERIAL
NUMBER 0L099525 AND ABOVE
IMPORTANT: The engines included in this serial number range had dimensional
changes to the crankshaft, rear main bearing, rear main bearing carrier, thrust
washers, O-ring seal, flywheel thrust spacer and flywheel seal. Ensure by serial
number that the specifications and parts are the correct ones for the engine.
Description
Measurement
Front 62.985 - 63.005 (2.479 - 2.4805)
Main Journal Outside
Center 63.005 - 63.020 (2.4805 - 2.4810)
Diameter
Rear 79.985 - 80.000 (3.1490 - 3.1496)
Front 0.055 - 0.095 (.0022 - .0037)
Main Bearing
Center 0.030 - 0.088 (.0011 - .0034)
Clearance
Rear 0.045 - .085 (0.0018 - 0.0033)
Front 63.060 - 63.080 (2.4827 - 2.4835)
Main Bearing Inside
Center 63.050 - 63.093 (2.4822 - 2.4840)
Diameter
Rear 80.045 - 80.070 (3.1514 - 3.1524)
Maximum Main Bearing Wear 0.1 (.0039)
Connecting Rod Journal Outside Diameter 53.940 - 53.955 (2.1236 - 2.1242)
Connecting Rod Bearing Clearance 0.030 - 0.064 (.0011 - .0025)
Connecting Rod Bearing Inside Diameter 53.977 - 54.016 (2.1250 - 2.1266)
Maximum Rod Bearing Journal Wear 0.1 (.0039)
Crankshaft End Play (Axial Clearance) 0.080 - 0.280 (0.0031 - 0.0110)
Standard 2.310 - 2.360 (0.0909 - 0.0929)
Thrust Washers
1st Oversized 2.410 - 2.460 (0.0949 - 0.0969)
2nd Oversized 2.510 - 2.560 (0.0988 - 0.1008)