Servicing Engine (500); Top-Side Components; Removing Top-Side Components - Toro 500 EFI Service Manual

19. Attach a suitable lifting sling and with a suitable
engine hoist, lift the engine from the vehicle.

Servicing Engine (500)

Top-Side Components ....................................................... 40
Removing Top-Side Components ...................................... 40
Servicing Top-Side Components........................................ 44
Installing Top-Side Components ........................................ 49
Left-Side Components ....................................................... 53
Removing Left-Side Components ...................................... 53
Servicing Left-Side Components ....................................... 55
Installing Left-Side Components ........................................ 57
Right-Side Components..................................................... 59
Removing Right-Side Components.................................... 59
Servicing Right-Side Components..................................... 63
Installing Right-Side Components...................................... 64
Center Crankcase Components......................................... 67
Separating Crankcase Halves............................................ 67
Disassembling Crankcase Half .......................................... 67
Servicing Center Crankcase Components......................... 69
Assembling Crankcase Half............................................... 74
Joining Crankcase Halves ................................................. 76
40

Top-Side Components


NOTE: For efficiency, it is preferable to remove and
disassemble only those components which need to
be addressed and to service only those components.
The technician should use discretion and sound
judgment.
To service any one specific component, only limited dis-
HDX157A
assembly of components may be necessary. Note the
AT THIS POINT information in each sub-section.

NOTE: The engine/transmission does not need to
be removed from the frame for this procedure.
Removing Top-Side
A. Cylinder Head Cover/
Rocker Arms
HDX156A
B. Cylinder Head/Camshaft

NOTE: Remove the spark plug, timing inspection
plug, and outer magneto cover; then using an appro-
priate wrench, rotate the crankshaft to top-dead-cen-
ter of the compression stroke.

NOTE: Toro recommends the use of new gaskets,
lock nuts, and seals and lubricating all internal com-
ponents when servicing the engine/transmission.
1. Remove the cap screws securing the two tappet cov-
ers. Remove the two tappet covers. Account for the
O-rings.

NOTE: Keep the mounting hardware with the covers
for assembly purposes.
2. Remove the cylinder head cover cap screws. Note
the rubber washers on the four top-side cap screws;
remove the cylinder head cover. Note the orientation
of the cylinder head plug and remove it. Note the
location of the two alignment pins.
AT THIS POINT

Components
FI603