Flywheel/Driveplate; Manual Transmission Models; Automatic Transmission Models; Undo The Retaining Bolt - Opel Zafira B MPV 2006 Owners Workshop Manual

28•16 2.2 litre petrol engine in-car repair procedures
13.3a Undo the retaining bolt (arrowed) .••
the retaining plate bolts to their specified
torque.
5 Refit the balance shaft timing chain and
sprockets as described in Section 8.
Right-hand (timing chain end}
1 Remove the crankshaft pulley as described
in Section 5.
2 Using a large flat-bladed screwdriver,
carefully lever the seal out from the timing
chain cover.
3 Clean the seal housing and polish off any
burrs or raised edges which may have caused
the seal to fail in the first place.
4 Lubricate the lips of the new seal with
clean engine oil and press/tap it squarely into
14.4 Make sure the seal seats squarely
into the timing chain cover
14.9 Carefully ease the oil seal over the
end of the crankshaft and tap/press it
squarely into position
13.3b ••• and withdraw the balance shaft
assembly
position until it sits into the recess in the cover
(see illustration). If necessary, a suitable
tubular drift, such as a socket, which bears
only on the hard outer edge of the seal can be
used to tap the seal into position. Take great
care not to damage the seal lips during fitting
and ensure that the seal lips face inwards.
5 Wash off any traces of oil, then refit the
crankshaft pulley as described in Section 5.
Left-hand
(flywheelldriveplate end}
6 Remove the flywheel/driveplate as
described in Section 15.
7 Carefully punch or drill two small holes
opposite each other in the oil seal. Screw a
self-tapping screw into each and pull on the
screws with pliers to extract the seal (see
illustration).
8 Clean the seal housing and polish off any
burrs or raised edges which may have caused
14.7 Removing a crankshaft left-hand oil
seal, using a pair of pliers and a screw
the seal to fail in the first place. Note: Insulation
tape can be put around the crankshaft flange
to help fit the oil seal.
9 Lubricate the lips of the new seal with clean
engine oil and ease it into position on the end
of the crankshaft. Press the seal squarely into
position until it is flush with the bearing cap.
If necessary, a suitable tubular drift, such as
a socket, which bears only on the hard outer
edge of the seal can be used to tap the seal
into position. Take great care not to damage
the seal lips during fitting and ensure that the
seal lips face inwards (see illustration).
10 If insulation tape was used around the
crankshaft flange, remove it, taking care not
to damage the oil seal. Refit the flywheel as
described in Section 15.
Note: New f/ywheel/driveplate retaining bolts
will be required on refitting.
Removal
Manual transmission models
1 Remove the transmission as described in
Chapter 7 A then remove the clutch assembly
as described in Chapter 6.
2 Prevent the flywheel from turning by locking
the ring gear teeth with a similar arrangement
to that shown (see illustration). Alternatively,
bolt a strap between the flywheel and the
cylinder block/crankcase. Make alignment
marks between the flywheel and crankshaft
using paint or a suitable marker pen.
3 Slacken and remove the retaining bolts and
remove the flywheel. Do not drop it, as it is
very heavy.
Automatic transmission models
4 Remove the transmission as described in
Chapter 78 then remove the driveplate as
described in paragraphs 2 and 3.
Inspection
5 On manual transmission models, examine
the flywheel for scoring of the clutch face. If
the clutch face is scored, the flywheel may be
surface-ground, but renewal is preferable.
6 On automatic transmission models closely
examine the driveplate and ring gear teeth
for signs of wear or damage and check the
driveplate surface for any signs of cracks.
7 If there is any doubt about the condition of
the flywheel/driveplate, seek the advice of a
Vauxhall/Opel dealer or engine reconditioning
specialist. They will be able to advise if it is
possible to recondition it or whether renewal
is necessary.
Refitting
Manual transmission models
8 Clean the mating surfaces of the flywheel
15.2 Lock the flywheel/driveplate ring gear and crankshaft.
9 Apply a drop of locking compound to each