Hummer H1 Service Manual page 121

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2-84 Engine
ROD CAP AND
BEARING INSERT
CONNECTING ROD
Figure 2-162: Measuring Connecting Rod Bearing
Clearance with Plastic Gauging material
12. Check connecting rod side play with feeler gauge
(Figure 2-163). Insert gauge between connecting rods on
same journal. Clearance should be 0.007-0.025 in. (0.17-
0.63 mm).
NOTE: If side clearance is incorrect, rod caps or rod and pis-
ton may be installed in wrong position.
Figure 2-163: Checking Connecting Rod Side
Clearance
PLACE GAUGING STRIP
ON ROD JOURNAL
AS SHOWN
MEASURE WIDEST POINT
OF COMPRESSED
GAUGING STRIP WITH
SCALE ON ENVELOPE
FEELER GAUGE
OIL PUMP, OIL PAN, FLYWHEEL INSTALLATION
1. Pour 2-3 ounces engine oil into pump and rotate pump
shaft to lubricate pump gears.
2. Install retainer and pump shaft in oil pump. Apply high
temp bearing grease to upper end of shaft.
3. Install oil pump. Be sure pump is seated on rear main cap.
Refer to Oil Pump Drive Removal in this section for more
information.
4. Install pump mounting stud. Tighten stud to 59-74 lb-ft
(80-100 N•m).
5. Seat pump pickup tube bracket on mounting stud. Tighten
bracket nut to 35 lb-ft (47 N•m) torque. Tighten screw that
secures bracket to pump pickup tube to 12 lb-ft (16 N•m)
torque.
6. Apply silicone sealer, such as Permatex High Temp, Ultra
Blue, or Ultra Black to surfaces of oil pan mounting flange
surfaces (Figure 2-164).
7. Apply sealer to pan rear seal (Figure 2-164). Then press
seal into place on oil pan. Coat seal ends with sealer as
well.
8. Apply silicone sealer around two holes in right side panel
rail on block (Figure 2-164).
9. Align and position oil pan on engine block pan rails.
Tighten larger diameter bolts at rear of pan to 17 lb-ft (23
N•m) torque. Tighten remaining bolts/studs to 89 lb-in.
(10 N•m) torque.
OIL PAN
MOUNTING
FLANGE
Figure 2-164: Oil Pan and Seal Installation
NOTE: Be sure pan rear seal was not displaced during pan in-
stallation.
10. Clean crankshaft flange and flywheel mounting surfaces.
11. Install flywheel on flange (Figure 2-165). Be sure
converter bolt pads are facing out and away from engine.
12. Apply 1-2 drops Loctite 242 to new flywheel bolts (but
only if new bolts do not have pre-applied thread locker).
Then install and tighten bolts 65 lb-ft (88 N•m) torque.
DRAINPLUG
GASKET
PAN REAR SEAL
®
PAN
RAIL
HOLES