Removal - Mercury MerCruiser D2.8L D-Tronic Service Manual

SERVICE MANUAL NUMBER 22
6. If clearance exceeds specifications, on used bearings, replace bearings and recheck
clearance. With new bearings, if correct clearance is not possible, recheck crank pin
(journal) dimensions. If new bearings and replacement (or reconditioned crankshaft) will
not yield proper measurement, it will be necessary to remove connecting rod/piston
assembly (refer to following section) to check dimension of connecting rod crank pin
bore.
7. After obtaining the correct clearance, coat crank pin with SAE 30W engine oil. Coat
bearing surface with oil and install rod cap. Torque to 29.4 Nm + 60 degrees (21 lb-ft +
60 degrees).

Removal

1. Remove cylinder heads.
2. Remove oil pan and oil pick-up tube.
3. Use a reamer to remove the ridge or any deposits from upper end of cylinder bore.
4. Install crankshaft tool, 91-814827. Turn crankshaft to gain access to connecting rod
bolts.
NOTE: Connecting rods are numbered similar to as shown. Record the numbers and
cylinder location for reassembly.
5. Remove connecting rod cap and rod bearings.
IMPORTANT: Mark or identify each connecting rod assembly to ensure placement in
original location during reassembly, if to be reused.
6. Push piston and connecting rod out of cylinder.
7. Retain rod cap and bearings with connecting rod/piston assembly. Do NOT mix
components.
90-860074--1 FEBRUARY 2002
a - Connecting Rod Number Placement
a
ENGINE MECHANICAL
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