Head Gasket Selection - Lotus TURBO ESPRIT Service Manual

Page
26
,
.
.
..
SECTION EA
head face down on the bench without first covering the bench with a
protective material, otherwise the mating face of the cylinder head
could be damaged.
Do NOT turn the engine without first fitting cylinder liner clamps,
otherwise the linen could be pushed from their locations.
To Replace
1 .
Remove the cylinder liner clamps. Thoroughly clean both the cylinder block
and cylinder head mating faces (use Trichtorethelene or petrol).
2.
Fit new cylinder head gasket. The gasket i s fitted with lWellseall applied
around the periphery of both sides of the oil pressure hole.
91 2 Head Gasket Selection
m e n replacing the head gasket on a 9.44:l CR 912 engine ( i e : NOT H.C.)
,
note
I
the type of gasket f i t t e d ,
( i e .
count laminations) o r the p a r t number stamped
thereon, and replace with the same type.
If
the cylinder linen, crankshaft or reciprocating components have been
changed, the piston standout above the liner flange must be measured. I f
the standout i s measured at right angles to the gudgeon pin, the height on
both sides of the piston must be measured and then averaged
Select a gasket from the following table based on the highest standout.
Standout
- . -
Description Part No
Less
than 0.014 in. N o extra laminations A907E0026
0.014
-
0.023
in. One extra lamination 891
1 E l
291
0.023
-
0.032 in. Two extra laminations
891
1 E l 292
3 .
Fit the cylinder head assembly, plain washen and nuts
.
Tighten a l l nuts i n
stages to the specified torque loading working diagonally outward from the
centre.
4.
Replace both camshaft carrier housings. Check valve clearances. (Section
EA.5.
and
EA.~.).
5 .
Replace camshaft drive (toothed) belt, spark plug leads and set static ignition
timing (Section
EA .8 .)
6 .
Refit ancillaries i n reverse order to dissassembly
,