Page 601 of 2490
1
1. Remove the internal O-ring seal.
1
2. Remove the crankshaft front seal.
1. Install and tighten the removal tool 303-541 to the crankshaft front seal.
2. Tighten the centre bolt of the tool to extract the seal.
Remove the tool and seal assembly.
Separate the seal from the tool.
13. Very carefully clean the threads of the crankshaft, using a plug tap M16x2, to remove all old cured
sealant.
Keep the tap horizontal. Do not enlarge the crankshaft thread - remove sealant only.
14. Clean all relevant parts and faces.
Page 602 of 2490
1.
Locate the new oil seal into the timing cover.
1. Remove the transit ring from the oil seal.
2. Position the seal to the timing cover.
2.
Install the new oil seal to the timing cover.
1. Install oil seal replacer tool 303-542 to the oil seal.
2. Use the nut and bolt provided with the tool, to fully seat the seal to the timing cover. Only tighten the nut sufficiently to locate the seal and no more, or the timing cover could become distorted.
Allow the tool to stay in position against the seal for at least five seconds.
Remove the special tool from the seal.
3. If the damper is not to be installed immediately, the transit ring should be installed temporarily to the seal.
Installation
Page 603 of 2490
4
. Install a new O-ring seal to the damper.
5
. Install the crankshaft damper.
Apply petroleum jelly to the damper bore and O-ring seal.
1. Install the damper onto the crankshaft.
2. Install the split locking ring onto the crankshaft, inside the centre bore of the damper. 3. Install, but do not tighten, a new damper securing bolt.
Page 604 of 2490
6.
CA
UTION:
Under no circumstances should the crankshaft setting peg 303-531 be used in the following
operations, to lock the crankshaft.
Tighten the damper securing bolt. 1. Reposition the damper to allow access to the bolt holes for installing the locking tool.
2. Install the locking tool (303-191 and 303-191-03) to the damper using the bolts provided.
3. Fully tighten the damper securing bolt to 364-386 Nm.
7. Remove the locking tool from the damper.
8. Install the drive belt to the front accessory drive. Refer to Operation <<12.10.40>>.
9. Install the supercharger drive belt. Refer to Operation <<18.50.08>>.
10. Install the twin fan and motor assembly. Refer to Section 303-03.
11. Install the plastic mesh cover to the torque converter housing; if removed for access to lock the
crankshaft.
12. Reset the engine compartment cover to the normal position and connect the gas struts.
13. Remove the paintwork protection sheets and close the engine compartment.
Page 605 of 2490

Engine - Crankshaft
Rear Seal4.0L
NA V8 - AJ27/3.2 L NA V8 - AJ26
In-v
ehicle Repair
Remov
al
S
pecial Tool(s)
Crankshaft Rear Oi
l Seal Remover /
Replacer.
303 - 538
1. Open the engine compartment and fit paint protection sheets.
2. Di
sconnect the batt
ery ground cable.
R
emove the battery cover.
3. Remove the transmission. Refer to Operation 44.20. 01 in
Section 307-01A.
4. Remove the drive plate. Refer to Operation 12.53.13.
5. F
it and align the seal removal tool 303 - 538 to the crankshaft.
1. Unscrew the two nuts towards the head of each bolt to allow the bolts to fit fully into the crankshaft.
2. Unscrew the center bolt until it is below the face of the main tool and position the tool to the rear of the
crankshaft.
3. Lightly tighten the two bolts so that they fully locate in the crankshaft.
6. Hold the tool against th
e cran
kshaft and lightly and evenly
tighten the two nuts to the face of the tool; to secure the tool
and to hold it parallel to the face of the crankshaft.
7. Secure the oil seal to the tool using the three self-tapping
Page 606 of 2490

In
stallation
screw
s spaced evenly around the face of the tool.
Use the pun
ch (provided) and a
hammer to pierce the seal
face and provide a pilot hole for one of the self-tapping
screws provided.
Fit a self -tapping screw an
d tighten by 11/2 turns only.
DO NOT TIGHTEN BY MORE THAN TWO TURNS OR THE
SCREW MAY BREAK.
Re peat
the above steps for the other two screws.
8. Hol d
the two bolts stationary and loosen fully the two nuts.
9. Tigh te
n the centre bolt. This will draw out the seal and tool
assembly which will be su pported by the two bolts.
10 . R
emove the two bolts to release the tool and seal assembly
from the crankshaft.
R e
move the three self
-tapping screws.
Remove and discard the seal.
Unscrew the centre bol t
until
it is below the face of the
tool.
11. Clean all relevant components.
1. Ensure that the transit sleeve is correctly in place and fit the
new seal over the crankshaft. Do not use any lubricant on the
seal, the transit sleeve or the crankshaft.
2. Carefully remove the tr ansit sleeve, leaving the seal in place.
Page 607 of 2490

3.
F
it the tool to the crankshaft.
E
nsure that the cent
re bolt is unscrewed to below the face
which is to fit to the crankshaft and position the tool to the
crankshaft.
Chec
k that the nuts are fully unscrewed and enter the two
bolts to the crankshaft thre ads and lightly tighten.
4. Tigh
ten the nuts, finger tight, to hold the tool assembly against
the seal. Check that the seal and the tool are approximately
parallel to the rear of the engine.
5. Pres
s the seal into the housing.
Ho
ld each bolt stationary, in
turn, and tighten its nut a
small amount (approximately two to three flats) in turn, to
press the seal fully into the housing. until the tool is in
contact with the cylinder block.
6. Remove the tool from the crankshaft.
Chec
k that the seal is located correctly.
7. Fit the drive plate. Refer to Operation 12.53.13.
8. Install the transmission. Refer to Operation 44.20. 01 in
Section 307-01A.
9. Remove the paint protection sheets and close the engine
compartment cover.
10. Connect the battery and fit the battery cover.
Re
fer to the Battery Reconnection Procedure 86.15.15.
Page 608 of 2490

Engine - Crankshaft Rear Seal4.0L SC V8 - AJ26
In-vehic
le Repair
Remov
a
l
S
p
ecial Tool(s)
Crankshaft Rear Oi
l Seal R
emover /
Replacer.
303 - 538
1. Open the engine compartment and fit paint protection sheets.
2. Disc
onnect the batt
ery ground cable.
Re
move the battery cover.
3. Remove the transmission. Refer to Operation 44.20. 01 in
Section 307-01B.
4. Remove the drive plat e. Refer to Operation (SC) 12.53.13.
5. Fi
t and align the seal removal tool 303 - 538 to the crankshaft.
1. Unscrew the two nuts towards the head of each bolt to allow the bolts to fit fully into the crankshaft.
2. Unscrew the center bolt until it is below the face of the main tool and position the tool to the rear of the
crankshaft.
3. Lightly tighten the two scre ws so that they fully locate
in the crankshaft.
6. Hold the tool against th e cr
an
kshaft and lightly and evenly
tighten the two nuts to the face of the tool; to secure the tool
and to hold it parallel to the face of the crankshaft.
7. Secure the oil seal to the tool using the three self-tapping