Lotus Esprit Series User Manual

TECHNICAL DATA
Page 5
C) Valve Seat Inserts
Bore in head:
Standard
- Inlet
- Exhaust
+0.0254 mm (0.001 in) - lnlet
- Exhaust
+0.0508 mm (0.002 in) - lnlet
- Exhaust
+O. 127 mm (0.005 in) - lnlet
- Exhaust
37.2364/37.2618 mm (1.466/1.467 ins)
34.29/34.3154 mm (1.350/1.351 ins)
37.2618/37.2872 mm ( 1 .467/1.468 ins)
34.3154/34.3408 mm (1.351/1.352 ins)
37.2872/37.3126 mm (1.468/1.469 ins)
34.3408/34.3662 mm (1.352/1.353 ins)
37.3634/37.3888 mm ( 1 .471/1.472 ins)
34.417/34.4424 mm (1.355/1.356 ins)
Outside diameter
of seats
Standard
- Inlet
37.28 13/37.3507 mm ( 1 .4695/1.4705 ins)
- Exhaust
34.3789/34.4043 mm (1 .3535/1.3545 ins)
+0.0254 mm (0.001 ins) - Inlet
37.3507/37.3761 mm (l .4705/1.4715 ins)
- Exhaust 34.4043/34.4297 mm (l . 1345/1.3555 ins)
+0.0508 mm (0.002 in) - Inlet 37.3761/37.4015 mm (1 .4715/1.4725 ins)
- Exhaust 34.4297/34.4551 mm (1 .3555/1.3565 ins)
+O. 127 mm (0.005 in) - Inlet
37.4523/37.4777 mm (1 .4745/1.4755 i
- Exhaust 34.5059/34.5313 mm (1.3585/1.3595 in
'' v<
Valve Springs
Dual
Free length
- Inner
37.465 mm (1.475 in)
46.863 mm (1.845 in)
.::*;,>*,'<,i:<~ -
- Outer .z-?,.:...$2 . ....- L.,::.
i. -
....
Rate - Inner (Compressed by 12 mm; 5 in = 13.6 kg; 30 ibs)
. .
.:; .
-
Outer (Compressed by 12 mm; 5 in = 28.57 kg; 63 lbs)
Valve Guides
,,:;;v:
Length - Inlet 53.34 mm (2.100 in) .
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,'l7.
- Exhaust 53.34 mm (2.100 in)
Internal diameter (to
ream after fitting) 7.1450fl.1704 mm (0.2813/0.2823 in)
ESPRIT
Issue 04/78

Lotus Esprit Series Specifications

General

Brand	Lotus
Model	Esprit Series
Category	Automobile
Language	English