Lotus Elise S1 Service Notes page 208

ENGINE
K16
9. Temporarily fit timing gears to camshafts, fit
but do not fully tighten bolts.
A
NOTE: This will enable camshafts to be
rotated in order to enable remaining bolts
to be tightened.
Early engines - bolts 1 and 2
Later engines fitted with modified camshafts:-
bolts 3 and 4
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S O & ® D a @ m ® D G ® j 0
8RM 0057
Cylinder head - K16 N o n V V C e n g i n e s fitted with
plug top coil ignition system - refit
~ C A U T I O N : If crankshaft has been rotated,
/ ! \ check that timing marks o n crankshaft
timing gear are aligned with flange o n oil
p u m p and that tool 18G 1674 is locking flywheel.
1. Check cylinder head bolts in oil rail. See
Cylinder head bolt inspection. - Renew bolts
as necessary.
2. Check that 2 locating ring dowels are fitted in
cylinder block.
- C A U T I O N : T h e type of ring d o w e l fitted
/ ! \ must be maintained. A nylon ring d o w e l
must not b e used in place of a steel ring
dowel.
3. Oil cylinder head bolts, under head and
threads.
4. Remove cylinder liner retainer clamps 18G
1736.
10. Tighten cylinder head bolts progressively in
sequence shown to 20 Nm.
Use a felt tip pen and mark position of radial
mark on each bolt head.
Tighten all 10 bolts in sequence shown through
180°
Tighten all bolts in sequence shown through
another 180° and align mark.
~ C A U T I O N : If any bolt is overtightened,
/ ! \ back off 90° and re-align.
11. Upon completion of tightening sequence,
position camshafts with inlet pin at 4 o'clock
and exhaust pin at 8 o'clock; remove timing
gears.
~ CAUTION: Ensure c a m s h a f t s do not rotate
/ } \ w h e n gears are removed.
12. Automatic timing belt tensioner: Fit tensioner
pillar bolt and tighten to 25 Nm.
K8 and K16
A
C A U T I O N : Do not rotate crankshaft until
cylinder head bolts are fitted.
5. Fit new cylinder head gasKet DRV, with
identification markings facing upwards, on to
cylinder block.
~ C A U T I O N : Take care not to d a m a g e
/ j \ sealing faces of gasket.
6. Using assistance, fit cylinder head on to
cylinder block carefully locating ring dowels.
7. Carefully enter cylinder head bolts in their
original fitted locations; D O N O T D R O P . Lightly
tighten bolts.
8. Temporarily fit timing gears to camshafts, fit
but do not fully tighten bolts.
A
NOTE: This will enable camshafts to be
rotated in order to enable bolts 3 and 4 to
be tightened.
13. Fit new spark plugs, tighten to 25 Nm.
14. Fit camshaft cover and timing gears.
15. K8 engines: - Fit H T lead brackets, lit and
tighten bolts to 10 Nm.
OVERHAUL 7 1