Chevrolet 70 1969 Series, Shop Manual

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E N G IN E 6-17
Figure 2 6 — In sta llin g C r a n k s h a ft G e a r on 4 0 1 M or 4 7 8 M E n g in e (Tool
Set J -7 8 7 9 -0 1 )
Figure 2 7 — Front C o v e r O il Se al In stallation (w ith C o v e r Installed on E n ­
gine)
1. Pulley Installer
2. Oil Seal Installer
(J-7879-10)
3. Key
4. Engine Front
Cover
5. Crankshaft Gear
or Sprocket
6. Oil Slinger
7. Oil Seal Assy.
8. Crankshaft
9. Installer
Screw
10. Installer Nut
1 1. Thrust Bearing
C R A N K SH A F T G E A R IN SPEC TIO N
A N D REPLACEMENT
Inspect teeth on crankshaft gear for wear and damage.
If necessary to replace gear, follow the procedure given
Figure 2 8 — E n g in e O il P u m p C o m p o n e n ts (E n g in e s w ith o u t H y d ra u lic
G ov e rn o r)
1. Pump Drive 6. Inner Rotor and
Shaft Shaft Assembly
2. Relief Valve 7. Outer Rotor
3. Valve Spring 8. Cover
4. Spring C ap 9. Cover Bolt
5. Oil Inlet 10. Pump Body
below, which is applicable with crankshaft either removed
or remaining in the cylinder block.
NOTE: The sprocket may be removed from
crankshaft without special tools, and sprocket
should be replaced if teeth show evidence of
wear. Timing mark on sprocket must be toward
front.
Gear Removal. Assembly special puller as shown in
Figure 25, and turn puller screw to remove gear from
crankshaft.
Gear Installation. C oat crankshaft area which enters
bore in gear with white lead, then with keys installed in
keyways to properly align gear, start gear on crankshaft
with timing m ark (fig. 39) forward. Use installer set in
manner shown in Figure 26. C rankshaft should be posi­
tioned so key is at 12 o'clock position when assembling
CHEVROLET SERIES 70-80 H EAVY DUTY TRUCK SH O P M A N U A L