Rover 214 & 414 Service and Repair Manual - Rover club
Rover 214 & 414 Service and Repair Manual - Rover club
Rover 214 & 414 Service and Repair Manual - Rover club
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4C•6 Fuel <strong>and</strong> exhaust systems - multi-point fuel injection engines<br />
14.14 Fuel rail/injector components -<br />
plastic inlet manifold<br />
A Throttle housing breather hose<br />
B Inlet manifold breather hose<br />
C Fuel pressure regulator<br />
D Fuel return hose<br />
E Fuel rail securing bolt (1 of 2)<br />
F Fuel injector multiplug (1 of 4)<br />
G Fuel injecdtor securing clip (1 of 4)<br />
hose-to-camshaft cover retaining clip <strong>and</strong><br />
detach the hose (see illustration).<br />
15 Disconnect the multiplug from the stepper<br />
motor.<br />
16 Disconnect the inlet manifold breather<br />
hose from the camshaft cover.<br />
17 Disconnect the vacuum pipe from the fuel<br />
pressure regulator.<br />
18 Loosen the retaining clip <strong>and</strong> disconnect<br />
the fuel return hose from the fuel rail.<br />
19 Remove the two bolts which secure the<br />
fuel feed pipe to the fuel rail <strong>and</strong> release the<br />
pipe from the rail, discarding the O-ring (see<br />
illustration 14.4).<br />
20 Disconnect each injector multiplug <strong>and</strong><br />
securing clip.<br />
21 Remove the two bolts securing the fuel<br />
rail to the inlet manifold <strong>and</strong> detach the rail<br />
from the manifold, together with the fuel<br />
pressure regulator.<br />
22 Note that the rail <strong>and</strong> regulator are<br />
serviced as an assembly <strong>and</strong> should not be<br />
separated. If unions are to be left<br />
disconnected for any length of time, then plug<br />
them with clean cloth to prevent the ingress of<br />
dirt or moisture into the system.<br />
23 To remove the injectors, pull each one<br />
from its location in the inlet manifold <strong>and</strong><br />
discard both of its O-rings. If leaving the<br />
injectors for any length of time, cover their<br />
exposed ends to prevent the ingress of dirt or<br />
moisture.<br />
24 Refitting of the injectors <strong>and</strong> rail is the<br />
reverse of the removal procedure, noting the<br />
following:<br />
a) Thoroughly clean all component parts,<br />
paying particular attention to the mating<br />
surfaces.<br />
b) Fit new O-rings, lubricating them with<br />
silicone grease.<br />
c) Where applicable, tighten all securing<br />
bolts to the specified torque wrench<br />
settings.<br />
14.25 Fuel pressure regulator location -<br />
alloy inlet manifold<br />
Fuel pressure regulator<br />
Alloy inlet manifold<br />
25 The fuel pressure regulator is secured to<br />
the end of the fuel rail by two bolts (see<br />
illustration).<br />
26 With fuel system pressure released <strong>and</strong><br />
the fuel hose disconnected from the regulator<br />
(see fuel rail removal above), remove the<br />
securing bolts <strong>and</strong> detach the regulator from<br />
the rail.<br />
27 Remove the spacer <strong>and</strong> O-ring,<br />
discarding the O-ring.<br />
28 Refitting the regulator is the reverse of the<br />
removal procedure. Thoroughly clean the<br />
mating surfaces <strong>and</strong> fit a new O-ring,<br />
lubricating it with clean fuel.<br />
Plastic inlet manifold<br />
29 The fuel pressure regulator is available<br />
only as part of the fuel rail <strong>and</strong> should not be<br />
separated from the same.<br />
Stepper motor<br />
Alloy inlet manifold<br />
30 The stepper motor fitted to this type of<br />
manifold is an integral part of the throttle<br />
housing <strong>and</strong> as a consequence, cannot be<br />
removed.<br />
Plastic inlet manifold<br />
31 Disconnect the multiplug from the stepper<br />
motor (see illustration).<br />
32 Remove the two Torx screws which<br />
14.35 Disconnecting potentiometer<br />
multiplug - alloy inlet manifold<br />
1689 <strong>Rover</strong> <strong>214</strong> & <strong>414</strong> Updated Version 09/97<br />
14.31 Disconnect stepper motor<br />
multiplug (A) <strong>and</strong> remove Torx screws<br />
(B - one hidden)<br />
secure the motor to the inlet manifold <strong>and</strong><br />
remove the motor, discarding its O-ring.<br />
33 Refitting is the reverse of the removal<br />
procedure, noting the following:<br />
a) Thoroughly clean the mating surfaces.<br />
b) Fit a new O-ring to the motor, lubricating<br />
it with silicone grease.<br />
c) Tighten the motor securing bolts to the<br />
specified torque wrench setting.<br />
Throttle potentiometer<br />
Alloy inlet manifold<br />
34 Disconnect the battery earth lead.<br />
35 Disconnect the multiplug from the<br />
potentiometer (see illustration).<br />
36 Remove the two securing screws <strong>and</strong><br />
detach the potentiometer from the throttle<br />
housing.<br />
37 Refitting is the reverse of the removal<br />
procedure, noting the following:<br />
a) Thoroughly clean the mating surfaces.<br />
b) Ensure correct engagement of the<br />
potentiometer before fitting the securing<br />
screws.<br />
Plastic inlet manifold<br />
38 Disconnect the potentiometer multiplug<br />
(see illustration).<br />
39 Remove <strong>and</strong> discard the two securing<br />
screws <strong>and</strong> wavewashers <strong>and</strong> remove the<br />
clamping plate.<br />
40 Pull the potentiometer off the throttle<br />
spindle being carefull not to apply leverage or<br />
twist the potentiometer.<br />
14.38 Potentiometer multiplug (arrowed) -<br />
plastic inlet manifold
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