TM-9-2815-205-24

6V53/6V53T ENGINES, DIESEL WITH CONTAINERS; MODEL 5063-5299, MODEL 5063-5392, MODEL 5063-5393 AND MODEL 5063-539L

TECHNICAL MANUAL; FIELD AND SUSTAINMENT MAINTENANCE

FEBRUARY 2013

TM-9-2815-205-24 - Page 683 of 856

INSPECTION-ACCEPTANCE AND REJECTION CRITERIA - Continued

11.

Inspect bearing shells for scoring, pitting, flaking, etching, and dirt grooving. If defective,

discard bearing shells.

12.

Discard bearing shells with bright spots on backs indicating movement in bearing caps or supports.

NOTE

If one bearing shell is less than minimum thickness shown in Table 1, replace both bearing

shells (upper and lower).

13.

Using a micrometer ball attachment (Figure 7, Item 19), measure thickness of lower and upper connecting

rod bearing shells at point (Figure 7, Item A), 90 degrees from parting line.

19

A

90°

MAINT_359

Figure 7.

Connecting Rod Bearing Inspection.

Table 1.

Connecting Rod Bearing Shell Thickness.

BEARING SIZE

NEW BEARING THICKNESS *

MINIMUM USED

THICKNESS *

Standard

0.1247–0.1252 in. (3.167–3.180 mm)

0.1230 in. (3.124 mm)

0.002 in. Undersized

0.1257–0.1262 in. (3.193–3.205 mm)

0.1240 in. (3.150 mm)

0.010 in. Undersized

0.1297–0.1302 in. (3.294–3.307 mm)

0.1280 in. (3.251 mm)

0.020 in. Undersized

0.1347–0.1352 in. (3.421–3.434 mm)

0.1330 in. (3.378 mm)

0.030 in. Undersized

0.1397–0.1402 in. (3.548–3.561 mm)

0.1380 in. (3.505 mm)

* Thickness 90 degrees from parting line of bearing.

TM 9-2815-205-24

0094

0094-9