TABLE NO. 1 CYLINDER HEAD TORQUE

Section 6 COMPRESSION

TABLE NO. 2 VALVE TAPPET CLEARANCE

TM-5-4240-501-14P Special Diver Air Support System (SDASS) NSN 4220-01-292-3708 Manual
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COMPRESSION Valves TABLE NO. 1 CYLINDER HEAD TORQUE BASIC MODEL SERIES Inch Meter Newton ALUMINUM CYLINDER Pounds Kilopond Meter 6B, 60000, 8B, 80000, 82000, 92000, 94000, 110000, 140 1.61 15.82 100000, 130000 140000, 170000, 190000, 220000, 250000 165 1.90 18.65 Inch Meter Newton CAST IRON CYLINDER Pounds Kilopond Meter 5, 6, N, 8, 9 140 1.61 15.82 14 165 1.90 18.65 19, 190000, 200000, 23, 230000, 240000, 300000, 320000 190 2.19 21.47 To Remove Valves Fig. 2 shows the three methods used to hold the valve spring retainers. To remove types shown in Illus. 1 and 2, use 19063 compressor; adjust jaws until they just touch the top and bottom of the valve chamber. This will keep the upper jaw from slipping into the coils of the spring. Push the compressor in until the upper jaw slips over the upper end of the spring. Tighten the jaws to compress the spring. Fig. 3. Remove collars or pin and lift out valve. Pull out compressor and spring. Fig. 4. Fig. 2. Valve Spring Retainers Fig. 3. Removing Spring To remove valves using retainers, Fig. 2, Illus. 3, slip the upper jaw of 19063 compressor over the top of the valve chamber and lower jaw between spring and retainer. Compress spring. Remove retainer. Pull out valve. Remove compressor and spring. Fig. 5. Fig. 4. Removing Spring Fig. 5. Removing Retainer and Spring Old 19063 valve spring compressors can be modified by grinding as shown in Fig. 6. Fig. 6. Modified #19063 Compressor 2

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