Suburban 1/2 Ton 2WD V8-379 6.2L DSL (1986)
NOTE:
Make certain that both seals are installed correctly by having the side which has "outside" printed on it facing toward the transmission.
12.
Insert the second half of the seal into the opposite side of the cylinder block groove. Only 1/2" will be inserted into the block, the remainder should
be snug against the crankshaft.
NOTE:
Contact ends of seal should now be located at the (4) and (10) or (8) and (2) o'clock positions. The seal is now installed around the
crankshaft. (Figure No. 1) This aligns the rear main bearing cap and seal lips.
Figure 2 - APPLYING SEALER TO REAR MAIN BEARING CAP
13.
Apply a thin film of anaerobic sealer, P/N 1052756, to the cap to assist in sealing the block mating surface. (Figure No. 2)
CAUTION: Do not put sealant in the bearing cap oil relief slot.
14.
Follow directions for usage of GM P/N 1052621 sealer (equivalents are Loctite 414 or Fel Pro 361) and apply two drops into the center lower
bearing cap seal groove.
15.
Install the rear main bearing cap.
NOTE:
To prevent damage to the rear main bearing cap, it is to be tapped into the block using a brass or leather hammer. The new seal is
used as a guide. The cap must not be pulled into the block with the bolts. Lubricate bolt threads with engine oil and install. Torque
bolts to specifications:
Inner
150 N-m (110 ft.lbs.)
Outer
135 N-m (100 ft.lbs.)
