TM 9-6115-604-34
NAVFAC P-8-633-34
(12)
Install hold-down clamps ST-1 267 on the liner (27), and check the liner protrusion in accordance with paragraph
9-23, step e. If necessary, adjust the liner protrusion to 0.005 to 0.007 inch (0.13 to 0.18 mm) using shims
selected from Table 9-5. If the liner protrusion is satisfactory remove damps ST-1 267.
(13)
Check the liner (27) for out-of-round at several points in the piston travel area. A new liner shall not be out-of-
round more than 0.002 inch (0.05 mm) in the packing area, nor more than 0.003 inch (0.08 mm) in the top 1 inch
(25 mm) of piston travel.
(14)
If the liner (27) is out-of-round over the permissible limits, check the liner-to-block clearance in accordance with
step (1), above. If the liner bears against block more than when first checked in step (1), above, remove the liner
and check for improper seal or packing installation.
(15) If the liner protrusion and out-of-round is within specifications, remove the protective covering from the crankshaft
journals, and install the connecting rod and piston assemblies in accordance with paragraph 9-20.
SECTION V. MAINTENANCE OF CRANKSHAFT
9-25. GENERAL. This section covers the inspection, replacement, and rebuild of the crankshaft. Adhere to the
specifications and tolerances given in Table 1-4. Keep all parts dean during assembly; dirt and foreign material are a
major cause of crankshaft and other internal part failures.
9-26. CRANKSHAFT INSPECTION . On-engine inspection of the connecting rod and main bearing journals, and thrust
flange is accomplished during bearing shell replacement. Inspect the crankshaft journals and thrust flange in accordance
with paragraphs 9-21 and 9-22.
9-27. CRANKSHAFT REPLACEMENT.
a. Remove.
(1)
Remove the engine from the generator set in accordance with paragraph 2-15.
(2)
Install the engine in rebuild stand 3375955.
(3)
Remove the timing gears and housing in accordance with paragraph 9-18.
(4)
Remove the flywheel in accordance with paragraph 9-34.
(5)
Remove the flywheel housing and rear gear housing in accordance with paragraph 9-35.
(6)
Remove the oil pan in accordance with paragraph 9-38.
(7)
Remove the connecting rod and piston assemblies in accordance with paragraph 9-20.
(8)
Remove the main bearing side-lock capscrews (14, Figure 9-24) and lockwashers (1 5) from both sides of
the engine.
(9) Remove the main bearing capscrews (16) and washers (17).
NOTE
Before removing the main bearing caps (18), check that they are match-marked to the cylinder
block. Caps must be match-marked to ensure installation in the same location as removed.
(10)
Using puller ST-1116 or a pry bar, remove the main bearing caps (18).
(11)
Remove the capscrews (24) and retainer plate (25), and remove the thrust bearings (26). Mark the thrust
bearings as to front or rear location.
9-71
