Ford Granada 1985-1994, Руководство пользователя

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12 When the distributor is at the firing point,
the leading edge of one of the vanes should be
in line with the rib on the sensor (see
illustration). Turn the distributor body slightly
if necessary to achieve this.
13 Refit the clamp plate and bolt. Just nip up
the bolt for the time being. Tighten it finally
after checking the timing. Also secure the
support bracket, when fitted.
14 Refit the rotor arm, distributor cap and HT
leads.
15 Reconnect the distributor multi-plug.
16 Reconnect the battery. Run the engine
and check the ignition timing as described in
the next Section.
2.4 & 2.9 litre V6 engines
Note: The distributor should not be removed
or disturbed without good cause, since the
accuracy of timing achieved in production is
unlikely to be regained. If difficulty is
experienced in setting the timing after refitting,
or if a new distributor has been fitted, the
timing should be set by a Ford dealer using a
STAR (Self Test Automatic Readout) tester.
17 Disconnect the battery negative lead.
18 Disconnect the HT leads from the spark
plugs noting the correct fitted locations.
19 Release the distributor cap and place it to
one side, complete with the HT leads.
20 Turn the engine by means of the vibration
damper centre bolt until No 1 piston is at its
firing point (12° BTDC) (see illustration).
21 If there is no mark visible, mark the rim of
the distributor body to indicate the point of
alignment of the contact end of the rotor.
22 Mark the position of the distributor
mounting plate in relation to the cylinder
block.
23 Disconnect the distributor wiring
connector.
24 Scrape the sealant from around the
distributor clamp bolt then unscrew the bolt
and withdraw the distributor.
25 Prior to refitting the distributor check that
the crankshaft is still set in the 12° BTDC
position for the No 1 piston.
26 Hold the distributor over the hole so that
the mounting plinth and cylinder head marks
are aligned then align the rotor arm contact
end with the mark on the distributor rim (see
illustration).
27 As the distributor is inserted, the rotor will
turn due to the meshing of the drive gears.
When the distributor is fully inserted, rotate the
distributor body until the rotor arm aligns with
mark C on the distributor rim.
28 Once the rotor arm, cylinder head and
distributor alignment marks are all correctly
aligned, fit the clamp bolt and tighten it
securely.
29 Refit the distributor cap then connect the
HT leads, reconnect the vacuum pipe and
wiring plug.
30 Run the engine to normal operating
temperature and check the ignition timing,
bearing in mind the note made at the start of
this sub-Section.
All engines except DOHC
1 Ignition timing is set very accurately in
production. It does not need to be checked or
adjusted on a routine basis. Adjustment will
only be necessary if the distributor, or an
associated component such as the timing belt,
has been disturbed.
2 Before checking the timing, the following
conditions must be met:
a) The engine must be warmed up
b) On carburettor models, the vacuum pipe
must be disconnected from the manifold
and the manifold hole be plugged
c) Idle speed must be below 900 rpm
d) Any earthed “octane adjustment” wires
must be temporarily isolated
3 Locate the timing marks. On SOHC engines
the timing scale is on the crankshaft pulley,
and a pointer on the timing cover must be
aligned with the appropriate mark on the
pulley (see illustration). Note that two
alternative types of pulley may be fitted (see
illustration). On V6 engines there is a single
notch on the pulley and the timing scale is on
the timing cover (see illustration). The desired
values are given in the Specifications.
Highlight the appropriate marks with white
paint.
4 Connect a timing light (strobe) to No 1 HT
lead, following the maker’s instructions. Some
lights require additional power connections to
be made, either to the mains or to the battery.
5 Run the engine at idle and shine the timing
light onto the marks. Take care not to get the
timing light leads, clothing etc tangled in the
fan blades or other moving parts. The timing
marks will appear stationary and (if the timing
is correct) in alignment.
14 Ignition timing - checking
Engine electrical systems 5•7
5
13.12 Vane leading edge and sensor rib
(arrowed) are aligned at firing point
13.20 Crankshaft pulley notch set to the 12°
BTDC position
14.3a Timing marks and pointer
Cast pulley shown
13.26 Rotor arm position before (1) and after (2) refitting the distributor
X = X C Notch