NOTE: The oil cooler assembly does not need to be removed to replace the oil filter head.

Remove the combination full flow/bypass lubricating oil filter.

Remove the four filter head capscrews and the filter head.

Clean all gasket surfaces.

NOTE: Do not allow dirt or gasket material to get into the oil passages.

Replace the oil filter head gasket.

Install the filter head, washers, and filter head capscrews.

Fill and install a new oil filter.

Fill and install the coolant filter.

If the oil filter head repair was done with the oil cooler assembly installed on the engine, operate the engine until the water temperature reaches 82°C [180°F] and check for oil leaks.