TECHNICAL
DATA
Page
3
P
ENGINE
GENERAL
Engine Type
907,
Twin overhead camshafts
Number of cylinders
4
Firing order
1
-
3
-
4
-
2
Capaci ty
1973
cc.
(120.4
cu ins)
Stroke
69.2
mm
(2.72
ins)
Bore (nominal)
95.2
mm
(3.75
ins)
i
'
Compression-rqio
-
European Spec.
9.5:l
<!,
c
-
North American Spec.
8.4:l
Corppression
-
Pressure (At sea level)
..,
,..
. .
...,,;
C
,
.
-
European Spec.
11.65/12.65
kg cm sq
(160/180
ibs in sq.)
-
North Americon Spec.
10.55/11.95
kg cm sq
(150/170
lbs in sq.)
'r-
Engine number location on top rear of cylinder block adjacent to
starter mounting
BELT TENSIONS
Toothed timing belt
(133
teeth)
'
..$-C
h
.;
):c;
With
both
iypes
of belt tensioners set the belt tension to an average reading of
'.
.
90
-
95
units cold
(120
-
125
units hot).
Check
to6thed belt tension between
1,'
auxiliary and inlet camshaft pulley, with Burroughs Gauge
Type
BT-33-86b
5
-
20.
IMPORTANT: Check the belt tension with number
1
or
4
cylinder at TDC after
>.
C
-
C
.
,
rotating
engine at least one full turn clockwise (norrml running direction).
Repeat
..
.,,
,.,..
,
.
:,$A;:&
,
."'.Lii:'
thls
operation twice to obtoin specified average reading.
..:,
.l:<
,
G*;'"..
,..,..i.
.,.:.,.
.,,
.?
V
-
belt compre~sor
-
9
mm
(0.35
ins) Deflection
Other V
-
belts
-
12
mm
(0.50
ins) Deflection
ESPRIT
Issue
04/78
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