TM-9-2815-205-24 Technical Manual for M113 Engine 6V53 6V53T Download
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ASSEMBLY CAUTION If cylinder block is not to be used immediately, spray machined surfaces with engine oil. If cylinder block is to be stored for an extended period of time, spray or dip block with corrosion preventative. Castings free of oil will rust when exposed to atmosphere. NOTE Install camshaft intermediate bearings prior to installing camshaft end bearings and press into cylinder block from outboard end of bore. Notch in front end and front intermediate bearings is toward front of engine. Notch in rear end and rear intermediate bearings is toward rear of engine. Camshaft replacement bearings are available with either standard or oversized outside diameter and standard or undersized inside diameters (see Table 2). Camshaft bearing remover and installer set is designed for use with standard size bearings. To install undersized bearings, reduce outside diameter of pilot, installers, and remover by 0.020 in. (0.51 mm). Table 2. Camshaft Bearing Color Code. BEARING POSlTlON OUTSIDE DIAMETER INSIDE DIAMETER CURRENT COLOR FORMER COLOR End Standard 0.010 in. (0.25 mm) Undersize Brown Black 0.010 inch (0.25 mm) Oversize Standard Brown Yellow Intermediate Standard 0.010 inch (0.25 mm) Undersize Orange Red 0.010 inch (0.25 mm) Oversize Standard Orange Blue 1. Install four intermediate camshaft bearings (Figure 7, Item 30) as follows: a. Insert large diameter of pilot (Figure 7, Item 32) in camshaft end bearing bore in block. b. Insert intermediate bearing (Figure 7, Item 30) into outboard end of camshaft bore. Ensure notch is positioned properly in bore as shown. c. Start unthreaded end of shaft (Figure 7, Item 33) in pilot (Figure 7, Item 32) and push shaft through entire length of cylinder block bores. d. Slide installer (Figure 7, Item 40) on shaft (Figure 7, Item 33) until locating pin engages notch in bearing (Figure 7, Item 30). TM 9-2815-205-24 0098 0098-10