Rear Main Bearing Cap
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Removing Rear Main Bearing Cap
How do I get the rear main crankshaft bearing cap to come off? Do I pry it off at the sealant contact point? I'm doing a rear main seal replacement and I removed the two retaining bolts on the rear bearing cap but it won't budge. Anyone?
P.S. - Dodge needs to thank their engineers for making oil pan removal on a 5.9 such a cumbersome task. Sheesh.
P.S. - Dodge needs to thank their engineers for making oil pan removal on a 5.9 such a cumbersome task. Sheesh.
Last edited by PirateFL; Aug 31, 2009 at 01:13 AM. Reason: title change
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Joined: Jun 2005
Posts: 14,228
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From: Riverton, UT
Give it a small smack to seporate them because there is a little lok-tite on each side causing it to hang on.
9 - 104 5.9L ENGINE
UPPER SEAL REPLACEMENT—CRANKSHAFT
INSTALLED
(1) Remove the oil pan.
(2) Remove the oil pump from the rear main bearing
cap.
(3) Remove the rear main bearing cap. Remove
and discard the old lower oil seal.
(4) Carefully remove and discard the old upper oil
seal.
(5) Clean the cylinder block mating surfaces before
oil seal installation.
(6) Lightly oil the new upper seal lips with engine
oil. To allow ease of installation of the seal, loosen at
least the 2 main bearing caps forward of the rear
bearing cap.
Fig. 43 Installing Oil Seal
Fig. 44 Sealant Application to Bearing Cap
Fig. 45 Apply Sealant to Bearing Cap to Block Joint
INSTALLED
(1) Remove the oil pan.
(2) Remove the oil pump from the rear main bearing
cap.
(3) Remove the rear main bearing cap. Remove
and discard the old lower oil seal.
(4) Carefully remove and discard the old upper oil
seal.
(5) Clean the cylinder block mating surfaces before
oil seal installation.
(6) Lightly oil the new upper seal lips with engine
oil. To allow ease of installation of the seal, loosen at
least the 2 main bearing caps forward of the rear
bearing cap.
Fig. 43 Installing Oil Seal
Fig. 44 Sealant Application to Bearing Cap
Fig. 45 Apply Sealant to Bearing Cap to Block Joint
9 - 104 5.9L ENGINE
DN
REMOVAL AND INSTALLATION (Continued)
(7) Rotate the new upper seal into the cylinder
(7) Rotate the new upper seal into the cylinder
block being careful not to shave or cut the outer surface
of the seal. To assure proper installation, use the
installation tool provided with the kit. Install the
new seal with the white paint facing towards the
rear of the engine.
(8) Install the new lower rear bearing oil seal into
the bearing cap with the white paint facing towards
the rear of the engine.
(9) Apply 5 mm (0.20 in) drop of Loctite 518, or
equivalent, on each side of the rear main bearing cap
(Fig. 44). DO NOT over apply sealant or allow the
sealant to contact the rubber seal. Assemble bearing
cap to cylinder block immediately after sealant application.
Be sure the white paint faces toward the rear
of the engine.
(10) To align the bearing cap, use cap slot, alignment
dowel and cap bolts. DO NOT remove excess
material after assembly. DO NOT strike rear cap
more than 2 times for proper engagement.
(11) Install the rear main bearing cap with cleaned
and oiled cap bolts. Alternately tighten ALL cap bolts
to 115 N·m (85 ft. lbs.) torque.
(12) Install oil pump.
(13) Apply Mopar
of the seal. To assure proper installation, use the
installation tool provided with the kit. Install the
new seal with the white paint facing towards the
rear of the engine.
(8) Install the new lower rear bearing oil seal into
the bearing cap with the white paint facing towards
the rear of the engine.
(9) Apply 5 mm (0.20 in) drop of Loctite 518, or
equivalent, on each side of the rear main bearing cap
(Fig. 44). DO NOT over apply sealant or allow the
sealant to contact the rubber seal. Assemble bearing
cap to cylinder block immediately after sealant application.
Be sure the white paint faces toward the rear
of the engine.
(10) To align the bearing cap, use cap slot, alignment
dowel and cap bolts. DO NOT remove excess
material after assembly. DO NOT strike rear cap
more than 2 times for proper engagement.
(11) Install the rear main bearing cap with cleaned
and oiled cap bolts. Alternately tighten ALL cap bolts
to 115 N·m (85 ft. lbs.) torque.
(12) Install oil pump.
(13) Apply Mopar
t Silicone Rubber Adhesive Sealant,
or equivalent, at bearing cap to block joint to
provide cap to block and oil pan sealing (Fig. 45)
provide cap to block and oil pan sealing (Fig. 45)
(Fig. 8). Apply enough sealant until a small amount
is squeezed out. Withdraw nozzle and wipe excess
sealant off the oil pan seal groove.
(14) Immediately install the oil pan.
is squeezed out. Withdraw nozzle and wipe excess
sealant off the oil pan seal groove.
(14) Immediately install the oil pan.
LOWER SEAL REPLACEMENT
(1) Remove the oil pan.
(2) Remove the oil pump from the rear main bearing
cap.
(3) Remove the rear main bearing cap and discard
the old lower seal.
(4) Clean the rear main cap mating surfaces
including the oil pan seal grooves.
(5) Carefully install a new upper seal (refer to
Upper Seal Replacement - Crankshaft Installed procedure
above).
(6) Lightly oil the new lower seal lips with engine
oil.
(7) Install a new lower seal in bearing cap with
white paint facing the rear of engine.
(8) Apply 5 mm (0.20 in) drop of Loctite 518, or
equivalent, on each side of the rear main bearing cap
(Fig. 44). DO NOT over apply sealant or allow the
sealant to contact the rubber seal. Assemble bearing
cap to cylinder block immediately after sealant application.
(9) To align the bearing cap, use cap slot, alignment
dowel and cap bolts. DO NOT remove excess
material after assembly. DO NOT strike rear cap
more than 2 times for proper engagement.
(10) Install the rear main bearing cap with
cleaned and oiled cap bolts. Alternately tighten the
cap bolts to 115 N·m (85 ft. lbs.) torque.
(11) Install oil pump.
(12) Apply Mopar
(2) Remove the oil pump from the rear main bearing
cap.
(3) Remove the rear main bearing cap and discard
the old lower seal.
(4) Clean the rear main cap mating surfaces
including the oil pan seal grooves.
(5) Carefully install a new upper seal (refer to
Upper Seal Replacement - Crankshaft Installed procedure
above).
(6) Lightly oil the new lower seal lips with engine
oil.
(7) Install a new lower seal in bearing cap with
white paint facing the rear of engine.
(8) Apply 5 mm (0.20 in) drop of Loctite 518, or
equivalent, on each side of the rear main bearing cap
(Fig. 44). DO NOT over apply sealant or allow the
sealant to contact the rubber seal. Assemble bearing
cap to cylinder block immediately after sealant application.
(9) To align the bearing cap, use cap slot, alignment
dowel and cap bolts. DO NOT remove excess
material after assembly. DO NOT strike rear cap
more than 2 times for proper engagement.
(10) Install the rear main bearing cap with
cleaned and oiled cap bolts. Alternately tighten the
cap bolts to 115 N·m (85 ft. lbs.) torque.
(11) Install oil pump.
(12) Apply Mopar
t Silicone Rubber Adhesive Sealant,
or equivalent, at bearing cap to block joint to
provide cap to block and oil pan sealing (Fig. 45).
provide cap to block and oil pan sealing (Fig. 45).
Apply enough sealant until a small amount is
squeezed out. Withdraw nozzle and wipe excess sealant
off the oil pan seal groove.
squeezed out. Withdraw nozzle and wipe excess sealant
off the oil pan seal groove.
(13) Immediately install the oil pan.
Last edited by hydrashocker; Aug 31, 2009 at 10:35 PM.
