Lotus Elise Service Notes page 179

ENGINE
Tappets - inspection
1. Check tappets for signs of wear, scoring and
overheating.
2. Measure outside diameter of tappet,
measurement must be taken half-way along
tappet body.
Tappet outside dia = 32.959 to 32.975 mm.
3. Ensure oil hole in each tappet is clear.
A
NOTE. Retain tappets in their fitted order
and keep them inverted to prevent oil loss.
Camshafts and timing gears - K8 and all K16 Non
VVC engines - inspection
Camshafts
A
NOTE: Carry out camshaft inspection after
removal of valves.
1. Clean camshaft(s), camshaft carrier and
cylinder head bearing surfaces, use suitable
solvent to remove sealant.
2. Inspect cams and bearing journals for wear,
pitting and scoring; replace components as
necessary.
A
12M1771A
B
Non VVC engines
_ CAUTION: A modified tappet has been
/ { \ introduced and will be supplied as a
replacement for all non VVC engines. The
above illustration show the early tappet A and
modified tappet B. When the modified tappets
are already fitted to an engine, they may be
replaced on an individi^al basis but may only be
fitted as replacements for early tappets in
cylinder sets.
VVC engines
~ CAUTION. Tappets fitted to VVC engines
/ ! \ are lighter than those fitted to non VVC
engines and whilst similar in appearance
to the early tappets A illustrated above, it is
essential that early tappets are not fitted to VVC
engines. To ensure that correct replacement
tappet is fitted, measure overall length of tappet:
Early tappet - Non VVC engines = 26.0 mm
Later tappet - VVC engines = 24.5 mm
4 2 OVERHAUL