Club Car Gasoline Service Manual page 205

7. Pitted or worn valve seats can be resurfaced (See Repair). Make sure to lap the valves to the seats
after refacing.
0.0197"/0.0433"
(.50/1.10 mm)
FIGURE 13-23
Valve Seat Repair
CAUTION
• IF YOU ARE UNFAMILIAR WITH THE FOLLOWING PROCEDURES, CLUB CAR SUGGESTS
THAT THE CYLINDER HEAD BE TAKEN TO A PROFESSIONAL ENGINE MACHINE SHOP FOR
RECONDITIONING.
1. Clean the cylinder head thoroughly (See Cylinder Cleaning, Page 13-12).
2. Recondition the valve seats with the valve seat cutters (45°-32 mm Exhaust Seat, 45°-35 mm Intake
Seat).
2.1. Using Prussian Blue, check the seats for good contact all the way around (See Valve Seat
Inspection).
2.2. Measure the seat width of the 45° angle portion of the seat at several places around the seat
(Figure 13-25, Page 13-16).
2.3. If the seat width is more than 0.079 inch (2.0 millimeters), the seating surface should be resur-
faced.
2.4. Resurface the valve seat with a 45° cutter (1) (32mm Exhaust Valve Seat Cutter, CLUB CAR Part
Number 1016553, and 35mm Intake Valve Seat Cutter, CLUB CAR Part Number 1016554),
removing only enough material to produce a smooth and concentric seat (Figure 13-24).
CAUTION
• USE CARE NOT TO DULL THE CUTTER. DO NOT TURN THE CUTTER COUNTERCLOCKWISE
OR ALLOW IT TO HIT A METAL OBJECT.
2.5. Use a 32° seat cutter (1) (CLUB CAR Part Number 1016555) to narrow the seat width to the stan-
dard width (Figure 13-24) (See Caution Below and Note on Page 13-16).
2.6. Turn the seat cutter (1) clockwise one turn at a time while pressing down very lightly. Recheck the
width after each cutter revolution (Figure 13-24) (See Caution Below and Note on Page 13-16).
CAUTION
• THE 32° SEAT CUTTER REMOVES MATERIAL VERY QUICKLY. CHECK THE SEAT OUTSIDE
DIAMETER FREQUENTLY TO PREVENT OVER-CUTTING.
1
VALVE SEAT WITH
32mm EXHAUST,
FIGURE 13-24
RESURFACE
45° CUTTER
35mm INTAKE
Page 13-15
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