Rolls-Royce Silver Shadow II - Page 37

CARS IN SERVICE IN JAPAN - ENGINE MODIFICATIONS TO MEET FUEL REGULATIONS
STANDARD SPECIFICATION
MODIFICATION REQU I RED
Model From Car Engine Compression Ignition Ignition Timing 1975/76
1977
Year Serial No
Capacity
Ratio
Distributor
B.T.O.C.
Rpm Static
Premium Fuel: Premium Fuel:
Litres 95 RON. ,0. 2 g/ L 95 RO..J., Unleaded
lead
1975 SRH 20797
6.75
7.3: 1 UE 39224 15
1600
4 B.T. O.C NONE
NONE
1974 SRH 15250 6.75 8: 1 Uf: 38307 15 1500 T.D.C
Retard ignition by Retard igniti 01 a further
1973
2 ie. 15 B.T.D.C
2 ie. at 1900 r.p.m.
at 1700 r.p.m.
(equivalent to 4
A.T.D.C
(equivalent to 2
static)
A. T .D.C stati ;:;)
1972 SRH 12895
6.75 9: 1
UE 38009 5
800
4
8.T.O.C Retard i~ition by
Al ter C.R. to 8: 1 by fitting
5 ie. 8 •• D.C at
piston assemb ly UE 38200.
1350
r.p.m.
Set
ignition timing to 5
(equivalent to 1
B. T.O.C at 1000 r.p.m.
A.
T.O.C static)
(equi valent to 2
8 .T.D.C
static)
1971
SRH 8742 6.75
9:1
UE 37735 5
800
T.O.C
Reiard ignition by
Alter C.R. to 8: 1 by fittin g
mid
7 ie. to 5 B.T.O.C piston assembly UE 38200.
1970
a~ 1150 r.p.m.
Set
ignition timing to 5
(efivalent to 7
B. T.D. C at 1000 r.p.m.
A . • D.C s tatic)
(equival en t to 4 A. T.D.C
static)
1969/70
SRH 1001 6.25
9: 1 uo 6304
5
650 2
B.T.D.C
Retard ignition by Alter C.R. to 8:1 by fitting
1968
7 ie. to 5 8.T.D.C pi ston assembly UE 33157.
1967
at 950 r.p. m.
Set ignition timing to 5
1966
(equivalent to 5
8. T.D. C at 800 r.p.m.
A.
T.D.C s tatic)
(Aquival en t to 2 A. T.D.C
static)
0
0
H