Toro 500 EFI Service Manual page 89

3. Lubricate the inside wall of the cylinder; then using a
ring compressor or the fingers, compress the rings
and slide the cylinder over the piston. Route the cam
chain up through the cylinder cam chain housing;
then remove the piston holder and seat the cylinder
firmly on the crankcase.
CAUTION
The cylinder should slide on easily. Do not force the cyl-
inder or damage to the piston, rings, cylinder, or crank-
shaft assembly may occur.
4. Loosely install the two nuts which secure the cylin-
der to the crankcase.

NOTE: The two cylinder-to-crankcase nuts will be
tightened in step 11.
5. Install the coolant hose onto the crankcase union and
tighten the clamp.
C. Cylinder Head
D. Valve Cover

NOTE: Steps 1-5 in the preceding sub-section must
precede this procedure.
6. Place the chain guide into the cylinder.
Care should be taken that the bottom of the chain guide
is secured in the crankcase boss.
CF083
7. Place a new head gasket into position on the cylin-
der. Place the alignment pins into position; then
place the head assembly into position on the cylin-
der.
CC024D
CC023D 8. Install the four cylinder head cap screws and wash-
ers. Tighten only until snug.
CAUTION
CF058A
CC020D
CF057A
87