Ford Granada 1985-1994, Руководство пользователя

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6 Disconnect the breather hose from the
camshaft cover, and unbolt the hose bracket
from the left-hand side of the cylinder head
(see illustration).
7 Unscrew the securing bolt and disconnect
the earth lead from the left-hand rear of the
cylinder head.
8 Remove the distributor cap and HT leads,
and the rotor arm and housing, as applicable.
If necessary, mark the HT leads to aid refitting.
9 The cylinder head can be removed either
with or without the manifolds and fuel rail,
where applicable (it is easiest to remove the
head complete with the manifolds and fuel
rail). If desired, the inlet manifold and the fuel
rail can be unbolted and moved to one side,
leaving the wires, hoses, pipes and cables
connected, but care must be taken not to
place any strain on them.
10 Unscrew the three securing nuts and
disconnect the exhaust downpipe from the
manifold. It may be necessary to jack up the
front of the vehicle to gain access to the nuts
(in which case apply the handbrake and
support the front of the vehicle securely on
axle stands) (see “Jacking”). Discard the
gasket.
11 If the inlet manifold and the fuel rail (where
applicable) are to be removed with the cylinder
head, disconnect all relevant wires, hoses,
pipes and cables, otherwise, unbolt the
manifold and the fuel rail, and move them to
one side, ensuring that they are adequately
supported. If the fuel rail is unbolted, be
prepared for fuel spillage, and take adequate
fire precautions.
12 Refer to the procedure described in
paragraphs 2 to 19 of Section 18 to complete
cylinder head removal.
13 Commence refitting by referring to
paragraphs 20 to 55 of Section 18, then
reverse the procedure described in
paragraphs 1 to 11 of this Section, noting the
following points.
a)
Use a new gasket when reconnecting the
exhaust downpipe to the manifold.
b) Ensure that the HT leads are reconnected
correctly.
c) Fill the cooling system.
Note: New cylinder head bolts, a new cylinder
head gasket, a new timing chain tensioner
plunger assembly, a new upper timing chain
cover gasket, and a new camshaft cover
gasket and reinforcing sleeve sealing rings
must be used on refitting. It is essential that
the three smaller M8 bolts are of the latest type
with hexagonal heads, not the earlier Torx type
(see illustration).
1 With the manifolds removed, proceed as
follows.
2 Unscrew the eleven bolts and four nuts, and
remove the camshaft cover. Recover the gasket.
3 Unscrew the four securing bolts and three
studs, and remove the upper timing chain
cover. Note the locations of the studs to aid
refitting.
4 Using a spanner on the crankshaft pulley,
turn the crankshaft to bring No 1 piston to the
firing point (TDC). With No 1 piston at the firing
point, the timing marks on the camshaft
sprockets should be pointing away from each
other, and should be approximately level with
the top edge of the cylinder head. Timing
notches are provided in the camshaft
sprockets, and corresponding paint marks are
provided on the outside edges of the
sprockets
(see illustration).
5 Hold the inlet camshaft sprocket stationary
using a peg spanner which engages with the
spokes of the camshaft sprocket. Unscrew the
camshaft sprocket bolt, and remove the
distributor rotor shaft (see illustration).
6 Repeat the procedure given in paragraph 5
for the exhaust camshaft, but note that a spacer
is fitted in place of the distributor rotor shaft.
7 Squeeze the upper timing chain guide
securing lugs together, using pliers if
necessary, and withdraw the guide from the
plate at the front of the cylinder head (see
illustration).
8 Mark the position of the timing chain in
relation to the camshaft sprockets, so that the
chain can be refitted in precisely its original
position (ie, make alignment marks between
each sprocket and a corresponding link in the
chain), then slide the camshaft sprockets from
the camshafts. Withdraw the sprockets and
lay the timing chain over the exhaust side of
the timing case, having eliminated the slack in
18 Cylinder head - removal and
refitting (engine removed)
DOHC engine 2B•11
2B
17.6 Hose bracket bolted to cylinder head
(arrowed)
18.0 Use new M8 (auxiliary) cylinder head
bolts with hexagonal heads (A), not the
earlier Torx type bolts (B)
18.4 Timing mark positions with No 1
cylinder at TDC
18.5 Removing the inlet camshaft sprocket
bolt and the distributor rotor shaft
18.7 Upper timing chain guide securing
lugs (arrowed)
If a peg spanner is not available,
a tool can be made from two
lengths of steel strip (one long,
the other short) and three nuts
and bolts; one nut and bolt forming the
pivot of a forked tool with the remaining
two nuts and bolts at the tips of the “forks”
to engage with the sprocket spokes.