Front Cover Replacement - GMC G Service Manual

FRONT COVER REPLACEMENT

H Remove or Disconnect (Figure 13)
1. Battery negative cable.
2. Water pump. Refer to ENGINE COOLING (SEC. 6B).
3. Torsional damper, as outlined previously.
4. Oil pan to front cover bolts.
5. Front cover to block bolts.
6. Front cover.
• Pull the cover forward enough to permit cutting
of the front oil pan seal (figure 13).
• Cut the front oil pan seal flush with the block on
both sides (figure 13). Use a sharp cutting tool
to ensure a clean cut.
• Pull off the front cover.
7. Gasket and front oil pan seal.
8. Front crankshaft oil seal from the front cover by prying
out with a screwdriver.
• Take care not to distort the front cover.
0 Clean
• Old gasket from the front cover, block, and oil pan.
I L » |
Inspect
• Front cover for distortion and damage. Replace if
necessary.
M Install or Connect (Figures 14, 15, and 16)
Tool Required:
J 22102 Seal Installer
7.4 LITER V8 6A5-11
1. Front crankshaft seal. Use J 22102 (figure 14). The
open end of the seal faces inside the engine. Coat the
seal lips with engine oil.
2. Front oil pan seal.
• Cut the tabs from a new seal (figure 15). Use a
sharp cutting tool to ensure a clean cut.
• Position the seal on the front cover. Push the
seal locating tips into the holes in the front
cover.
3. Front cover to block gasket to the front cover. Use
gasket sealer to hold it in position.
• Apply a 3 mm (1/8-inch) bead of RTV sealant (GM
part number 1052366 or equivalent) to the front oil
pan to block joint (figure 16).
4. Front cover to the engine. Press the cover down
against the oil pan until the block dowel pins align with
the holes in the cover. Position the cover against the
block so that the dowels enter the cover holes without
binding. Do not force the cover over the holes. Do not
distort the cover flange or dowel pin holes. Hold the
front cover in this position. Install and partially tighten
the oil pan to front cover bolts.
5. Front cover to block bolts.
H x l Tighten
• Front cover to block bolts to 10.8 N*m (96 in.
lbs.).
• Oil pan to front cover bolts to 7.9 N»m (70 in.
lbs.).
6. Torsional damper, as outlined previously.
7. Water pump. Refer to ENGINE COOLING (SEC. 6B).
8. Battery negative cable.