600 YRM 496
Crankshaft and Main Bearings Repair
1.
REAR OIL SEAL
SURFACE
2.
CONNECTING
ROD JOURNALS
3.
MAIN BEARING
JOURNALS
4.
FRONT OIL SEAL
SURFACE
Figure 27. Crankshaft Inspection
b. Put plastic gauge material on journals and in-
stall main bearing caps. Tighten capscrews for
bearing caps to 84 to 90 N•m (62 to 66 lbf ft).
c.
Remove bearing caps. Plastic gauge material
will adhere to journals or bearing caps.
d. Use graduations on scale to measure width of
plastic gauge material at its widest point.
Correct clearance is 0.031 to 0.049 mm
(0.0012 to 0.0019 in.).
If any clearance is
greater than specification, replace all main
bearings.
1.
PLASTIC GAUGE
MATERIAL
2.
SCALE
Figure 28. Main Bearings Clearance Check
INSTALL
1.
Clean areas of cylinder block around main bear-
ings. Carefully install bottom half of new main bear-
ings if necessary. Lubricate bearings with clean en-
gine oil.
2.
Install crankshaft.
3.
Install top half of main bearings in caps and lu-
bricate with oil. Use identification marks to install
main bearing caps in correct locations.
Tighten
capscrews for main bearing caps to 84 to 90 N•m
(62 to 66 lbf ft).
4.
Install pistons and connecting rods as described in
Pistons and Connecting Rods Repair.
5.
Make sure O-ring is in oil pump housing. Lubricate
oil seal with engine oil. Use adhesive sealant to
install housing to cylinder block. Make sure there is
no sealant in oil port. Tighten M10 capscrews to 38
to 53 N•m (28 to 39 lbf ft). Tighten M8 capscrews
to 19 to 26 N•m (14 to 19 lbf ft).
6.
Lubricate surfaces of oil seal with engine oil. Use
press to install oil seal in rear cover. Install align-
ment pin in cylinder block.
7.
Install gasket and rear cover. See Figure 29. Make
sure dowel pin is installed. Tighten capscrews to 8
to 12 N•m (6 to 9 lbf ft). Cut off part of gasket that
extends past bottom of cylinder block.
11
Summary of Contents for GDP16-20AF
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