Camshaft
Description 6.2 Liter (377 cid)
Journal diameter 47.465–47.490 mm (1.868–1.8697 in.)
Journal out of round 0.05 mm (0.0020 in.) maximum
Lobe lift
Intake 6.973 mm (0.275 in.)
Exhaust 6.994 mm (0.275 in.)
End play 0.040–0.270 mm (0.0015–0.010 in.)
Timing Chain
Description 6.2 Liter (377 cid)
Chain deflection 11 mm (0.4331 in.) maximum
Flywheel
Description 6.2 Liter (377 cid)
Runout 0.203 mm (0.0080 in.) maximum
Engine Block
Clean and Inspect
1. Clean the engine block with cleaning solvent.
2. Flush the engine block with clean water or steam.
3. Clean the cylinder bores.
4. Clean the oil galleries and the oil passages.
5. Clean the scale and the deposits from the coolant passages.
NOTE: Clean all debris, dirt, and coolant from the engine block cylinder head bolt holes. Failure to remove all foreign
material may result in damaged threads, improperly tightened fasteners, or damage to the components.
6. Clean the engine block cylinder head bolt holes.
Engine Inspection and Assembly
Page 3B-6 © 2016 Mercury Marine 90-8M0099748 eng DECEMBER 2015
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