TM-9-2815-213-34
ENGINE, DIESEL, WITH ACCESSORIES CUMMINS MODEL V8-300 (2815-910-8217)
TECHNICAL MANUAL; DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE MANUAL (INCLUDING DIRECT SUPPORT AND GENERAL SUPPORT REPAIR PARTS LIST AND DEPOT MAINTENANCE ALLOWANCES)
FEBRUARY 1972
TM-9-2815-213-34 - Page 33 of 192
*TM 9-2815-213-34
Figure 3-5.
Crankshaft dimensions.
3-12.
Installation
a
. Lay upper main bearing shells in block engaging
shell tang in recess.
Refer to paragraph 2-ll.p.
(6) and
(7).
b.
Coat shells with GAA.
c.
Install shaft in block.
Refer to paragraph 2-11.p.
(5) for installation instructions.
d
. Install upper thrust half-rings in rear main
bearing with grooved side next to shaft flange.
e
. Coat lower bearing shells with GAA and snap
into position in bearing caps.
f,
Install lower main bearing thrust half-rings over
dowels in bearing cap.
g.
Install bearing caps over shaft.
NOTE
Main
bearing
caps
are
not
interchangeable,
insure that numbers
stamped on caps correspond with
numbers stamped on block.
h.
Lubricate threads of the bearing cap bolts with
OE-10 lubricant.
i.
Install bolts and plain washers in each cap and
engage threads by hand.
j.
Tighten bolts as follows:
(1)
Alternately torque both bolts in each cap to
150-160 ft.
lbs.
(2)
Alternately torque both bolts in each cap to
340-350 ft.
lbs.
(3)
Fully loosen all bolts to relieve tension.
(4)
Alternately torque both bolts in each cap to
80-90 ft.
lbs.
(5)
Alternately torque both bolts in each cap to
170-180 ft lbs.
(6)
Scribe each cap in line with a corner hex of
each bolt head.
(7)
Advance each bolt 60 degrees alternately
on each cap in 30 degree increments.
k.
Check shaft clearance against limits specified in
repair and rebuild standards (para.
3-176) as follows:
(1)
Using a suitable holder attach a dial
indicator to rear of block (fig.
3-6) with gage plunger
resting against flange face.
(2)
Using a pry bar move shaft to front of block.
(3)
Set gage to zero.
(4)
Move shaft to front of block and observe
gage reading.
NOTE
If clearance,
with a new shaft and thrust
rings,
is less than 0.005-inch loosen all
bearing cap bolts and move shaft to
front of block then to rear of block.
Refer to paragraph 3-12.j.,
and
3-4
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