Crankshaft; Main Bearing Shell Configuration - Lotus TURBO ESPRIT Service Manual

Page 8
Crankshaft
Balance (inc. flywheel and clutch)
Diameter
-
Main journal (No.1
.
to 4 inc.)
-
Main journal (NO. 5 only)
-
Crankpin
End float
-
Dimension
-
Max wear
l i m i t
-
Control
I
ed by
Bearings (main)
-
Number
-
Type
Static clearance*
Max. undersize for regrind
Within 15 gr.cm. (0.2 oz. in.)
63.487
-
63.51 3
mm.
(2.4995
-
2.5005 in.)
63.500
-
63.51 3
mm
, (2.5000
-
2.5005 i n .)
50.736
-
50.762
mm.
(1.9975
-
1.9985 in.)
.
.
0.08
-
0.20 mm. (0.003
-
0.008
in.)
0.30
mm.
(0.012 in.)
Selective thrust washers on rear main
bearing
5
Steel backed, leaded bronze
0.013
-
0.056
mm.
(0.0005
-
0.0022 in.)
0.'
0.508
mm.
(0.0200
in.)
*
Bearing clearance
i s
measured with Plastigage.
MAIN
E W K l N G SHELL CONFIGURATICN
ENGINE
TYPE
107 ~ l i t e / E c l a t
107 Esprit
w i t h
ION
X - d r i l l e d
rank
I07 Esprit
w i t h
idrilled
crank
112 Esprit
112 E l i t e / E d l a t
112 Excel w i t h
KIN X - d r i l l e d
xank
112 Excel
w i t h
:-drilled
crank
112 E s p r i t HC
MAIN BEARING NUMBER
FRONT
'1 I
CENTRE
1
1
REAR
UPPER
m
UPPER
UPPER
UPPER
I
P l a i n
P l a i n
P l a i n
Plain
G r o o v e / H o l e G r o a v e / H o l e ~ l a i n / H o l e G r o o v e / H o l e
G r o o v e / H o l e G r o a v e / H o l e P l a i n G r o o v e / H o l e
G r o o v e / H o l e G r o o v e / H o l e P l a i n / H o l e G r o o v e / H o l e
1
G r o o v e / H o l e
P l a i n
. .
2
G r o o v e / H o l e
3
G r o o v e / ~ o l e
4
G r o c w e / ~ o l e
5
G r o a r e / H o l e