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VM Marine Engine Cylinder Heads

Single cylinder heads are used throughout the range of VM  3, 4, 5 and 6 cylinder water cooled engines.  Employing this design reduces the amount of flexing and distortion the cylinder head is subject to by thermal forces when clamped rigidly to …
Mercuiser Marine Engine Sump

Sump & Carbon Contamination

This is a sump that has been removed from a Mercruiser 220hp Marine Engine 6 cylinder. The oil was so badly contaminated with carbon it became as thick as grease as you can see in the picture below. The crankshaft had been …