Toro Groundsmaster 455-D Service Manual page 72

3. Oil the piston and tighten the piston ring clamp
(Fig. 78, Item 4).
4. Remove the connecting rod end caps.
5. Install the pistons in the bores, matching the markings
made when removed, and aligning the crown recess
(Item a) on the oil filter side of the block.
6. Install the connecting rod end caps. Tighten the nuts
to a torque of 50 Nm (37 ft-lb).
NOTE: For choice of bearing shell thickness, see
Crankcase in Identification and Specifications section.
Oil Seal Installation
1. Put a new oil seal on tool TOR 70153 C.
2. Install seal with lip toward the inside of the engine
block to keep the oil in. Fit the seal by tapping fully
home with a mallet.
3. Withdraw the tool with a twisting movement.
Oil Pump Installation
1. Install the key (Fig. 80, Item 6).
2. Install the pump (Item 7), drive chain and sprocket
(Item 8) assembly.
Engine
Page 3 - 54 Rev. D
Figure 78
TOR 70153C
Figure 79
Figure 80
Groundsmaster 455-D