Port Block - New Holland LS140 Workshop Manual

Inspection
Check the oil pump cover, inner and outer rotors for
wear.
Check the clearance between the rotors.
Replace both rotors if scored, worn or if clearance
exceeds specifications.

PORT BLOCK

The oil pump is mounted on a port block and shaft
assembly. Inspect the port block for wear and
scoring. The port block is a press fit in the engine
block. If necessary, the port block can be removed
and replaced by use of available special tools.
Port Block Removal
1. Remove the engine front adaptor plate.
2. Install special tool FNH11097 onto the port block.
Install a slide hammer onto the tool and pull the
port block from the engine block.
Port Block Installation
1. Assemble the oil pump shaft, 1, to the port block,
securing with nut and washer.
SECTION 10 - ENGINE
10-57
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