Lotus Elise Service Notes page 196

ENGINE
Hydraulic control unit - K16 VVC engines -
assembling
~ CAUTION: It is essential to ensure that
/ ! \ absolute cleanliness is maintained during
the following operations.
1. Thoroughly clean all components, dry with
compressed air.
2. Lubricate new labyrinth seals and rack seal
with engine oil.
12M3532B
5. Slide piston end of rack through seal.
~ CAUTION: Only insert rack through seal
/ j \ for a sufficient distance to enable piston
to be fitted and take great care that teeth
of rack do not contact seal.
12M3522A
3. Using the fingers only, fit labyrinth seals each
side of hydraulic control unit seal plate.
y. CAUTION: Ensure seals are located
/ ! \ beneath retaining lugs.
4. Fit new rack seal to plate.
6.
7.
8.
Secure rack in a soft-jawed vice, fit new piston
and seal assembly to rack, fit and tighten new
screw supplied with seal kit to 9 Nm.
Lubricate piston bore with engine oil.
Position seal plate, piston and rack assembly
to hydraulic control unit with rack teeth facing
towards fixing hole adjacent to solenoid side of
unit.
12M3658A
9. Insert piston and rack assembly into bore of
housing at an angle as shown, taking care not
to damage piston seal on machined edge of oil
feed channel. Push piston to top of bore.
OVERHAUL 5 9