Ford Granada 1985-1994, Owner'S Manual

Page: 54 / 254

mountings to the front crossmember. Recover
the washers.
3 Raise the engine with a hoist or a suitable
protected jack until the mountings are free,
then remove them.
4 Fit the new mountings and lower the engine
onto them.
5 Fit the nuts and washers and tighten the
nuts.
6 Lower the vehicle.
Carburettor models
The crankcase ventilation system consists
of the special oil filter cap (containing a steel
wool filter) and an oil separator and vent valve
on the left-hand side of the engine. This is
connected by hose to the inlet manifold. The
system operates according to the vacuum in
the inlet manifold. Air is drawn through the
filler cap, through the crankcase, and then
together with piston blow-by gasses through
the oil separator and vent valve to the inlet
manifold. The blow-by gases are then drawn
into the engine together with the fuel/air
mixture. Refer to Chapter 1 for maintenance of
the system.
Fuel-injection models
This system is closed, consisting of an oil
separator on the left-hand side of the engine
and a hose connecting it to the inlet air
trunking. Because the trunking is not subject
to manifold vacuum, no vent valve is needed.
1 With the engine completely stripped, clean
all the components and examine them for
wear. Each part should be checked, and
where necessary renewed or renovated as
described in the following Sections. Renew
main and big end shell bearings as a matter of
course, unless you know that they have had
little wear and are in perfect condition.
2 If in doubt as to whether to renew a
component which is still just serviceable,
consider the time and effort which will be
incurred should it fail at an early date.
Obviously the age and expected life of the
vehicle must influence the standards applied.
3 Gaskets, oil seals and O-rings must all be
renewed as a matter of routine. Flywheel and
cylinder head bolts must be renewed because
of the high stresses to which they are
subjected.
4 Take the opportunity to renew the engine
core plugs while they are easily accessible.
Knock out the old plugs with a hammer and
chisel or punch. Clean the plug seats, smear
the new plugs with sealant and tap them
squarely into position.
1 Unscrew the bolts and remove the oil pump
cover (see illustration).
2 Using feeler blades check that the rotor
clearances are within the limits given in
Specifications (see illustrations). If not,
unbolt the pick-up tube and strainer and
obtain a new unit (see illustration). Fit the
pick-up tube and strainer to the new pump
using a new gasket, and tighten the bolts.
3 If the oil pump is serviceable refit the cover
and tighten the bolts.
1 Examine the bearing surfaces of the
crankshaft for scratches or scoring and, using
a micrometer, check each journal and
crankpin for ovality. Where this is found to be
in excess of 0.0254 mm (0.001 in) the
crankshaft will have to be reground and
undersize bearings fitted.
2 Crankshaft regrinding should be carried out
by a suitable engineering works, who will
normally supply the matching undersize main
and big-end shell bearings.
27 Crankshaft and bearings -
examination and renovation
26 Oil pump - examination and
renovation
25 Examination and renovation -
general information
24 Crankcase ventilation system -
general information
2A•12 SOHC engines
23.1 An engine mounting
26.2b Checking the inner-to-outer rotor
clearance
26.2c Checking the oil pump rotor endfloat
26.2d Exploded view of the oil pump
A Body
B Outer rotor
C Inner rotor
D Cover E Strainer
F Pick-up tube
G Gasket
H Relief valve
26.1 Removing the oil pump cover 26.2a Checking the outer rotor-to-housing
clearance