2.
Install push rods through push rod guide making sure push
rods are in valve tappets, Fig. 59.
4. Install screw assembly from Step 3 and turn screw in until
there is zero clearance between valve cap and rocker arm.
5.
Rotate crankshaft at least two (2) revolutions to be sure
push rods operate rocker arms.
Adjust Valve Clearance—Current Style
Note: Check valve clearances while engine is cold.
1.
Turn crankshaft until piston is at Top Dead Center (both
valves closed) on compression stroke.
2.
Insert a narrow screwdriver or small rod into spark plug
hole against piston. Screwdriver or rod is used to gauge
piston movement.
2
1
3.
4.
Turn crankshaft clockwise (flywheel end), while watching
screwdriver or rod, past Top Dead Center until piston is
1/4” (6mm) down.
Fig. 59 – Installing Push Rods
1.
Push rod
2. Valve tappet
Using feeler gauges, check valve clearance. Clearance
should be as listed in Table No. 4, Page 32.
3.
4.
5.
Install caps on valve spring.
5. If not, adjust jam nut until correct clearance is obtained,
Fig. 61.
Place rocker arm and rocker ball on rocker arm stud.
1
Install rocker arm lock nut on stud and turn down until
there is zero clearance between valve cap and rocker arm,
Fig. 60.
2
6.
Rotate crankshaft at least two (2) revolutions to be sure
push rods operate rocker arms.
1
Fig. 61 – Adjust Rocker Arm Clearance,
Current Style
2
1.
Feeler gauge
2. Jam nut
Fig. 60 – Installing Rocker Arms
Adjust Valve Clearance—Early Style
1.
Push rod guide
2. Lock nut
Note: Check valve clearances while engine is cold.
1.
Turn crankshaft until piston is at Top Dead Center (both
valves closed) on compression stroke.
Install Rocker Arms—Early Style
2.
Insert a narrow screwdriver or small rod into spark plug
hole against piston. Screwdriver or rod is used to gauge
piston movement.
1.
2.
3.
Install push rods through push rod guide making sure push
rods are in valve tappets, Fig. 59.
Place rocker arm ball on rocker arm screw and insert
through rocker arm.
3.
Turn crankshaft clockwise (flywheel end), while watching
screwdriver or rod, past Top Dead Center until piston is
1/4” (6mm) down.
Install jam nut of end of rocker arm screw and run nut up
on threads half way.
GTS 200
31
Compression
| Categories | Lawn Mower Manual, Parts and Accessories Manuals, Toro Lawn Mower Manual |
|---|---|
| Tags | Toro GTS 200 |
| Download File |
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| Language | English |
| Product Brand | Toro. Customer Service Representatives are available by phone:
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| Publisher | toro.com |
| Wikipedia's Page | Toro Company |
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