Service Manual

54
GTS 200
Crankshaft and Camshaft
Inspect Camshaft
Inspect gear teeth for wear and nicks, Fig. 133. Camshaft,
camshaft journals, and lobe rejection sizes are shown in
T able No. 3, page 55. See Fig. 133 for other areas to be
checked for wear and freedom of movement.
6
5
4
3
2
1
Fig. 133
– Camshaft Check Points
1. Mag journal
2. Intake
3.
Cam lobe
4. PT O journal
5. Gear teeth
6. Exhaust
Check Compression Release
Check compression release mechanism for wear , nicks, and
freedom of movement, Fig. 134. Replace if compression
release is worn or sticking.
1
Fig. 134 – Compression Release Mechanism
1. Mechanical yoke weights
Install Crankshaft and Camshaft
Install Crankshaft
1. Install intake and exhaust valve tappets first.
2. Select Briggs & Stratton Tool #19356, Seal Protector
based on size of magneto seal journal from T able No. 4,
page 55.
3. Insert seal protector into magneto seal.
4. Supporting both ends of crankshaft, install in cylinder .
5.
Install connecting rod on crankshaft, page 51.
6. Install slip fit timing gear (if removed) with inner chamfer
toward crankpin. This assures timing mark will be visible.
Install Camshaft
Install camshaft, making sure tappets clear cam lobes. T iming
marks must align, Fig. 135.
1
1
1
Fig. 135 – Aligning T iming Marks, V ertical
Crankshaft
1. Timing mark
Install Crankcase Sump
1. Check governor shaft position, page 25, and install
crankcase sump using seal protectors as listed in
T able No. 4, page 55. Do not force sump.
2. Install screws and torque in sequence shown, Fig. 136.
6
4
1
3
7
2
5
1
Fig. 136 – T orque Sequence
1. Sealant
3. See T able No. 5, page 55 for torque values.
Note: It may be necessary to rotate crankshaft and
camshaft to get oil pump (when equipped) to engage drive
slot for oil pump in camshaft.
Note: S cre w a ssemble d a t p osition four , F ig . 13 6, w as
factor y c oate d w it h s ealant. I f s ealan t i s m issing , c oat
wit h a n on-hardenin g s ealan t s uc h a s P ermatex  2 , o r
equivalent.