Club Car 1996 DS Golf Car Gasoline, Руководство по обслуживанию

Страница: 205 / 544

Page 13-15
G
13
7. Pitted or worn valve seats can be resurfaced (See Repair). Make sure to lap the valves to the seats
after refacing.
Valve Seat Repair
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).
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).
FIGURE 13-23 FIGURE 13-24
• 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.
• USE CARE NOT TO DULL THE CUTTER. DO NOT TURN THE CUTTER COUNTERCLOCKWISE
OR ALLOW IT TO HIT A METAL OBJECT.
• THE 32° SEAT CUTTER REMOVES MATERIAL VERY QUICKLY. CHECK THE SEAT OUTSIDE
DIAMETER FREQUENTLY TO PREVENT OVER-CUTTING.
0.0197"/0.0433"
(.50/1.10 mm)
RESURFACE
VALVE SEAT WITH
45
°
CUTTER
32mm EXHAUST,
35mm INTAKE
1
CAUTION
CAUTION
CAUTION