The T
oro Company – 1999
Printed in USA
All Rights Reserved
FORM NO. 3322-692
INSTALLATION
INSTRUCTIONS
Part No. 99–8921
Part No. 99–8922
Heat Shield Kit
Loose
Parts
Note: Use the chart below to identify parts for assembly.
DESCRIPTION QTY. USE
Heat Shield
Flat W
ashers
Bolts
Nuts
Gaskets
1
3
3
3
2
Installing Heat Shield
POTENTIAL HAZARD
• Components around engine will be hot if
the machine has been running.
WHAT CAN HAPPEN
• Touching hot components can cause burns.
HOW TO AV
OID THE HAZARD
• Allow the machine to cool before
performing maintenance.
• Do not touch engine components when hot.
Removing
Muffler
1. Remove lock washers and nuts holding muffler
to exhaust manifold and the lower support
hardware. Move muffler away from engine. Save
lock washers, nuts and lower support hardware
(Fig. 1).
2. Remove all gasket material from muffler and
engine manifold.
Note: The muffler can remain in the rear
bumper area.
Installation Instructions
2
1
3
m–4438
2
4
8
5
9
67
Figure 1
1. Heat
Shield
2. Muffler
3. Muf
fler Gaskets
4. Muf
fler Lower Support
Bracket and Hardware
5. Muf
fler T
ubes
6.
Lock W
asher
7. Nut
8.
Engine Deck
9.
Rear Bumper
Drilling
Holes in Engine Deck
Note: You have to drill holes into the engine
deck if none exist for the heat shield.
1. Check the engine deck for holes under the
exhaust manifold. If there are no holes, you will
need to drill holes into the engine deck (Fig. 2).
Note: If you do not need to drill holes, go to
Installing Heat Shield section on page .
2. Place the heat shield on the engine deck.
Position it so the large slots in shield face toward
the rear of the machine (Fig. 3).
3. Reinstall the muffler to engine manifold. Do not
tighten hardware completely. Do not reinstall the
lower support bracket (Fig. 2).
4. Slide the shield rearward until it hits the muffler
tubes. Mark the center of the two outside slots.
(Fig. 3).
Note: The middle hole does not need to be
drilled.
5. Remove muffler and shield. Drill two 3/8” holes
in the engine deck (Fig. 2).
1
3
4
2
5
Figure 2
1. Muffler
Nut and Lock
Washer
2.
3/8” Hole to Drill
3.
Engine Manifold
4. Muffler
5.
Engine Deck
Installation Instructions
3
Installing
Heat Shield
1. Position heat shield on top of the engine deck
with large slots toward the rear of the machine.
Align holes with slots (Fig. 3).
2. Install bolts, flat washers, and locknuts. Do not
tighten hardware. (Fig. 3).
Note: If you drilled holes in the engine deck,
the middle bolt, flat washer and lock
nut will not be installed.
3. Install gaskets onto the engine manifold (Fig. 1).
4. Install muffler onto the engine manifold with
lock washers and nuts. Install muffler lower
support bracket and hardware (Fig. 1 and 2).
5. Position heat shield and tighten bolts, flat
washers and locknuts (Fig. 2).
4
1
5
2
2
7
Figure 3
1. Heat
Shield
2.
Engine Deck
3. Muf
fler T
ubes
4. Bolt
5.
Flat W
asher
6. Locknut
7.
Large Slot in Heat Shield
Installation Instructions
4
/