Quantcast INSTALL CRANKSHAFT1202-12

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3500 ENGINES
DISASSEMBLY AND ASSEMBLY
CRANKSHAFT
6.
Remove the remainder of main bearing caps (5)
and remove crankshaft (4) from the engine
block. The weight of the 3512 Crankshaft is 454
kg (1000 lb.).
The weight of the 3508
Crankshaft is 299 kg (660 lb.).
7.
If necessary, remove bolts (7) to remove gears
(6) from each end of the crankshaft.
INSTALL CRANKSHAFT1202-12
1.
If gears (I) were removed, install gears (1) on
each end of the crankshaft and install the bolts
to hold the gears.
2.
Make sure the upper halves of main bearings (2)
(bearings with oil holes) are in position in the
cylinder block. Put clean engine oil on the
bearings.
3.
Fasten a hoist to crankshaft (3) with two fly-
wheel bolts and put it in position. Make sure the
word "FRONT" on the end of the crankshaft is
toward the front of the cylinder block.
4.
Make sure the lower halves of the main bearings
are in position in the main bearing caps. Put
clean engine oil on the bearings and install all
but the center main bearing cap on the cylinder
block. The caps must be installed with the word
"FRONT" and the cast part number toward the
front of the cylinder block.  Each cap has a
number on the bottom surface and must be
installed in the same position as the correct
number on the right side of the block pan rail.
NOTICE
Do not use an impact wrench to tighten the bolts
1800 + 50 of a turn more.
5.
Put clean engine oil on the main bearing cap
bolts and tighten the bolts in the number
sequence as shown to a torque of 136 + 14 Nm (
100 + 10 lb.ft.). Then tighten each bolt in the
number sequence as shown 1800 + 50 of a turn
more.
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