Rolls-Royce Silver Wraith II - FUEL COOLER INSTALLATION

Service
Bulletin
Bullet.in number
Circu~tion 11st
Category c
11 II
ALL DISTRIBUTORS AND RETAILERS
IN
THE USA ONLY
FUEL COOLER INSTALLATION
APPLICABLE TO:
Date
II II
23 7 76
Pa ge
I 11
II I
ID>OLLS-
If\\OYCE
MOTORS
Car Division
TSO 4171
1 of 14
11 I
'O
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E
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All Rolls-Royce Corniche and Silver Shadow cars and all Bentley
Corniche and 'T' series cars built to the 1975 and 1976 emission
control regulations ie. carR bearing the suffix 'D' or 'E' in
~
.9
~
~
the car serial number.
[ INTRODUCTION:
~
£ It has been found that fuel evaporation may occur in high
® ambient temperatures, at high altitudes or in conditions of
slow city driving. Also, this condition may occur when
requiring large throttle openings with relatively low vehicle
speeds eg. long steep inclines.
These conditions can result in poor engine performance similar
to that caused by fuel starvation.
Once vapourisation has occurred it is necessary to allow the
car to cool for some considerable time before normal running
can again be achieved.
The fitting of a fuel cooler in conjunction with other alterations
to the fuel system wi.11 overcome fuel vapourisation.
DESCRIPTION:
The fuel cooler utilises the refrigeration gas as a cooling
agent and is incorporated in a new refrigeration return pipe.
This pipe replaces the original.
The fuel cooler is mounted on the left-hand side of the
refrigeration compressor.