Lotus TURBO ESPRIT Service Manual page 199

SECTION EA
Page
57
0
Plain (912 Esprit
53,
910 Esprit Turbo)
(Std l/D
Std
O/D
(
-
0 .0lOt' I/D
( - 0.020"
I/D
(
Std I/D
+
0.015"
G/D ( -
0.01 0" I/D
( -
0.020" 1/D
NOTE:
Engines from Number 20875, with the revised main bearing
panel
(without chamfer)
do not use the notched bearing she1
I.
NOTE:
907 (2 litre) engines'use a main bearing panel similar to the revised 912 panel and
are therefore unaffected by this bulletin.
0
3 ,
Ensure the correct bearing shell configuration
i s
fitted by referring to the
table in Technical Data.
Ensure that both the cylinder block and the main bearing housings are clean,
then
fit
new bearing shells. Apply a small amount of graphogen grease to the
bearing she1
Is.
4.
Ensure that the crankshaft main journals are clean, then f i t the crankshaft. Spin
the crankshaft to ensure even distribution of th3 gmphogen grease. F i t
new
selective thrustwashen to the rear main bearing so that the oil grooves
(the 'copper' side) are towards the crankshaft. Check the end-float
between the crankshaft and the thrustwashers (see TECHNICAL DATA). If
a
the end-float
is
outside this tolerance, replace the selective thrust washers.
5.
Dry Sump Turbo Only : Ensure the crankshaft connecting rod journals and the
connecting
rods
and caps are clean then
fit
new bearing shells. Refit the
connecting rods and their caps to their respective iournals after appiying
gaphogen weuse t o the bearings. Tighten the bolts to their specified
torque loading (see TECHNICAL DATA).
Ensure the scavenge manifold and sump ducts are fitted and the stud locknuts
retained with thread locking compound and their locktabs. Insert the oil
feed pipe into the block with a 'new '0' ring fitted en i t s lower end.
Oil
the
'0'
ring.
a
6.
Ensure a l l the main bearing panel to black locating dowels are i n place, and
APR 1987
clean the ioint face on both parts before applying
only
'WELLSEAL'
(zero