Rolls-Royce Corniche - View of Typical Carburetter Linkage Arrangement (Early Cars); Checking the Choke Stove Pipe Depression; Mixture Weakening Device Fittings-To Remove

Workshop Manual
Rolls Royce Silver Shadow 19 Bentley T Series
Chapter K
FIG. K24 CHECKING THE CHOKE STOVE PIPE
DEPRESSION
1 Wooden board
2 Water
3 Rubber tube
4 Union--choke stove pipe connection
5 Choke stove pipe
6 Calibrated orifice
7 Polythene tube
8 Scale
9 Manometer
Kick-down micro switch-To set
Refer to Page K21.
Mixture weakening device f ittings-To
remove
The following procedures apply to cars from Car Serial
Number SRH 8742 and onwards.
1. Disconnect and remove the pipes fitted to the
carburetter float chambers, choke housing and car-
buretter butterfly housing connection. Also disconnect
the hose fitted to the
weakening device; discard the
clip.
2. Using special spanner (RH 8087), remove the
weakener cut-off valve assembly; do not dismantle the
assembly.
Note The weakener cut-off valve assembly has
a critical setting to ensure that the valve
operates at very precise temperatures;
therefore the assembly must not be dis-
mantled.
If the assembly is not operating
correctly, or if the wax capsule is thought
to be faulty a new cut-off valve assembly
must be fitted.
3. Remove the two screws securing the vacuum
take-off plate to the
'B' bank butterfly housing;
remove the plate and gasket.
FIG. K25 VIEW OF TYPICAL CARBURETTER LINKAGE ARRANGEMENT (Early cars)
1 Kick-down micro-switch 3 Micro-switch-transmission 5 Micro-switch-transmission
2 Full throttle stop
stator stator
4 Adjusting screw-kick-down