TM-9-2815-205-24 Technical Manual for M113 Engine 6V53 6V53T Download
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ASSEMBLY - Continued 19. Install twelve exhaust valves as follows: a. Place cylinder head on its side. Lubricate valve stems with preservative lubricating oil and slide valves (Figure 23, Item 30) all the way into guides (Figure 23, Item 68). NOTE Install used valves only in their original location. b. Install lower spring seat (Figure 23, Item 31), valve spring (Figure 23, Item 32), and upper spring seat (Figure 23, Item 33) over valve stem. CAUTION Avoid scoring valve stem with spring seats when compressing spring. c. Using valve spring compressor (Figure 23, Item 29), compress valve spring (Figure 23, Item 32) and install two tapered valve locks (Figure 23, Item 34). d. Release pressure on valve spring compressor (Figure 23, Item 29) and remove it. e. Repeat Steps 19.a. – 19.d. for remaining valves. f. Support cylinder head on wood blocks at both ends (fire deck down). Give stem end of valves a sharp tap with soft head hammer to seat valve locks (Figure 23, Item 34). 30 31 34 29 32 33 MAINT_270 Figure 23. Cylinder Head Exhaust Valve Installation. TM 9-2815-205-24 0083 0083-25