GMC T Series 1994 Repair Manual page 552

pump and camshaft gears as shown. The slot in
the injection pump gear should be in the vertical 6
o'clock position (figure 75). If not, remove J 33042
and rotate the engine crankshaft 360 degrees.
4. Fasten J 33042 to the injection pump gear and
tighten (figure 73).
5. Install one 10-mm nut to the upper housing stud to
hold the tool flange.
• The nut should be finger tight.
6. Tighten the large bolt (19-mm head) clockwise
(looking at the front of the engine) to 48 N-m (35
lbs. ft.).
7. Tighten the 10-mm nut.
8. Check that the crankshaft has not rotated and that
the tools did not bind.
9. Strike the scriber with a mallet to mark TDC on the
front cover.
10. Remove J 33042.
O IL PUMP INSTALLATION
■44- Install or Connect (Figure 76)
1. Oil pump (33) with extension.
N O T IC E : R e f e r to " N o t i c e " o n p a g e 6 A 7 -1 .
2. Bolt (35).
Tighten
• Bolt (35) to 90 N-m (65 lbs. ft.).
O IL PAN INSTALLATION
"► 4- Install or Connect (Figure 76)
•A p p ly a 5-mm (3/16-inch) bead of RTV sealant
(GM P/N 12345739) to the oil pan sealing surface,
inboard of the bolt holes (figure 76). The sealer
, must be wet to the touch when the oil pan is
installed.
Figure 74— Injection Pump
1. Oil pan rear seal to the oil pan (40).
2. Oil pan (40) to the engine.
N O T IC E : R e f e r to " N o t i c e " o n p a g e 6 A 7 -1 .
3. Bolts (39).
A. All except rear two bolts to 10 N-m (89 in. lbs.).
B. Rear two bolts to 23 N-m (17 lbs. ft.).
-► 4-
Install or Connect (Figures 68 and 77)
Tool Required:
J 29664 Manifold Cover Set
1. Head gasket to the block, over the dowel pins.
Important
• The block gasket surfaces must be clean.
• DO NOT use a sealer on the head gasket. The
head gasket is manufactured with sealant on its
surface. Additional sealer may cause leakage or
malfunction. In addition, some sealers may
attack the sealant already on the head gasket.
CYLINDER HEAD
INSTALLATION