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2A•8 SOHC engines
12 Cylinder head - dismantling
1 Remove the camshaft as described in the
previous Section. (If tool 21-005-A is available,
leave the camshaft in place until the valves
have been removed).
2 Using a valve spring compressor, compress
each valve spring in turn until the split collets
can be removed. Release the compressor and
remove the cap and spring, keeping them
identified for location (see illustrations).
If the caps are difficult to
remove do not continue to
tighten the compressor, but
gently tap the top of the tool
with a hammer. Always ensure that the
compressor is held firmly over the cap.
3 Remove each valve from the cylinder head,
but identify them for location (see illustration).
4 Prise the valve stem oil seals from the tops
of the valve guides (see illustration).
5 If necessary unscrew the cam follower ball-
pins from the cylinder head, keeping them
identified for location.
6 If necessary unscrew the bolts and remove
the timing belt tensioner.
7 Remove the thermostat and housing.
8 Remove the temperature gauge sender unit.
9 Remove the manifold studs if wished by
locking two nuts onto each stud in turn and
unscrewing it.
13 Timing belt and sprockets -
removal
1 If the engine is still in the vehicle, carry out
the following preliminary operations:
a) Disconnect the battery negative lead
b) Remove the radiator and disconnect the
hose from the thermostat housing
c) Remove the accessory drivebelt(s)
2 Unscrew the bolts and withdraw the timing
cover. Note the location of the cover in the
special bolt.
3 Using a socket on the crankshaft pulley bolt,
turn the engine clockwise until the TDC (top
dead centre) notch on the pulley is aligned
13.4 Timing belt tensioner bolts (arrowed)
12.2a Compressing a valve spring
12.3 Removing a valve
with the pointer on the crankshaft front oil seal
housing, and the pointer on the camshaft
sprocket is aligned with the indentation on the
cylinder head. Note the position of the
distributor rotor arm. Mark the contact end of
the rotor in relation to the rim of the distributor
body.
4 Slacken the timing belt tensioner retaining
bolts then pivot the tensioner pulley away from
the belt, to obtain maximum drivebelt free play
(see illustration). Hold the tensioner pulley in
this position and securely retighten the
retaining bolts.
5 Mark the running direction of the belt if it is
to be re-used, then slip it off the camshaft
sprocket.
6 Slacken the crankshaft pulley bolt. Prevent
the crankshaft from turning by engaging 5th
13.7 Using a puller to remove the
crankshaft pulley
12.2b Removing a valve spring and cap
12.4 Removing a valve stem oil seal
gear (manual gearbox), or by removing the
starter motor and jamming the ring gear teeth.
Alternatively, if the pulley has peripheral bolt
holes, screw in a couple of bolts and use a
lever between them to jam it. Do not allow the
crankshaft to turn very far, or piston/valve
contact may occur.
7 Remove the bolt and washer and withdraw
the pulley. If the pulley will not come off easily,
refit the bolt part way and use a puller (see
illustration). A puller will almost certainly be
required on fuel-injection models.
8 Remove the guide washer from in front of
the crankshaft sprocket, then remove the
timing belt (see illustration). Do not kink it or
get oil on it if it is to be re-used.
9 Remove the crankshaft sprocket using a
puller if necessary (see illustration).
13.8 Remove the guide washer from in
front of the crankshaft sprocket
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