Lotus TURBO ESPRIT Service Manual page 31

SECTION TD
B
Page
5
Outside diameter
of seat
Standard
-
Inlet
-
Exhaust
+
0.025
mm
(0.001 in)
-
lnlet
-
Exhaust
+
0.050
mm
(0.002 in)
-
lnlet
-
Exhaust
+
O.12i'mm (0.005 in)
-
l n l e t
-
Exhaust
37.325/37,350 mm. (1.4695/1 .4705 in .)
34.380/34.405
mm
.
(1 .3535/1 .35& in .)
37.350/37.375 mm. (1 .4705/1 .4715 in.)
34.405/34,430 m m
.
(1 . I 345/i .3555 i n .)
37.375/37.400
mm
.
(1.471 5/1 .4725 in .)
34.430/34.455 m m
.
(1.3555/1 .3565 i n .)
37.450/37.475 m m
.
.
(1 .4745/l ,4755 i n
.
)
34.505/34.530 mm. (1 .3585/1 .3595 in .)
ia
Valve Springs
Dual
I
F r e e Length
I n n e r
I
O u t e r
42.2 mm 4 8 . 5 mm
1
( 1 . 6 6 i n . )
(
( 1 . 9 1 i n . )
Valve Guides
Rate
I
I n n e r
I
O u t e r
1
0
Length
-
lnlet
and Exhaust 53.34
mm.
(2.100 in.)
Internal diameter (to ream after fitting)
-
Inlet
7.145
-
7.1 70
mm.
(0.281 3
-
0.2823 i n .)
-
Exhaust8.000 -8.025
mm.
(0.3150
-
0.3159 in.)
Bore i n head
-
lnlet and Exhaust
Standard
11.915
-
11.925 mm. (0.4690
-
0.4695 in.)
+0.025
mm.
(0.001 in.)
1 1.940
-
1 1.950
mm
.
(0.4700
-
0,4705 in. )
+
0.050
mm.
(0.002 in.)
11 ,965
-
11 .975
mm.
(0.4710- 0.4715 in.)
+
0.127 rnm. (0.005 in.)
12.040
-
12.050mm. (0 A740
-
0.4745 in.)
Outside diameter
of
guide
Sta
nda rd
11.940
-
11.950
mm.
(0.4700
-
0.4705 in.)
i.
+O.025
mm.
(0.001 in.)
11 ,965
-
11.975 mm. (0.4710
-
0,4715 in.)
+
0.050
mm.
(0.002 in.)
11 .W0
-
12.000 mm. (0.4720
-
0.4725
in.)
+
0.127
mm,
(0.005 in.)
12.065
-
12.080 mm. (0.4750
-
0.4755 in.!
' I
DEC "186