Lotus Elise S1 Service Notes page 529

Lotus Service Notes
Section XA
9. Using the crankshaft pulley bolt, slowly turn the crankshaft 2 turns clockwise to check there is no valve/
piston contact, and re-align the timing marks without having to 'back up'. Check that the tensioner pointer
is still correctly aligned with the index wire. If not, slacken the tensioner bolt until it is just possible to
move the lever clockwise, and position the pointer just above the index wire. Continue with operation (7).
10. Refit the belt guards.
Cat. Replacement Pipe (0.4 hr)
Remove the catalytic converter and replace with the cat. replacement pipe.
Breather Kit & Catch Tank (0.6 hr)
Fit the breather catch tank to the LH side of the engine bulkhead. Remove the breather hose between the
cam cover and airbox and fit the grommet to the airbox hole. Remove the breather hose from the cam cover
to breather rail. Use the breather hose kit to connect the two cam cover breather spigots to the catch tank.
Leave the other breather catch tank vent pipe free (or fit a Pipercross vent filter). Remove the steel breather
rail from the inlet tracts, and fit the alloy blanking plugs to the inlet tract spigots.
Delete Charcoal Canister (0.2 hr)
Remove the charcoal canister and plumbing. Vent the fuel tank breather pipe from the roll-over valve to
atmosphere.
Lower Temperature Thermostat (0.7 hr)
Replace the standard 88°C thermostat with the 82°C item.
RHD Only - Oil Cooler Kit (5 hrs)
Note that all LHD cars were factory built with oil coolers. For RHD oil cooler fitting procedure, see XA.17
or LSL388.
Optional: (Not recommended for road use) Delete IAC Valve (0.4 hr)
Remove the idle air control valve, mounting bracket and plumbing. Fit the blanking plugs to the inlet tract
spigots on manifold underside. Fit blanking grommet to backplate. Saves 667g.
On road based cars, for further performance enhancement between 5,000 and 6,500rpm, and with a
weight saving of over 4 kg, the Titanium muffler A340M6011S may be fitted with the catalytic converter, and
will meet road noise regulations as well as RAC MSA Section 'A' noise regulations.
On track based cars, for further performance enhancement between 5,000 and 6,500rpm, and with a
weight saving of over 4 kg, the 'Track' exhaust muffler A340S6008S may be fitted, which incorporates a cat.
replacement pipe. This part complies with RAC MSA Section 'A' noise regulations.
MOT Regulations (U.K.)
If the car is required to meet the U.K. MOT regulations, the standard engine breather system must be
retained, together with the charcoal canister, and the Motorsport catalytic converter A340S601 OS. Deletion of
the standard breather system for track use, allows increased mid-range spark advance to be applied. If the
standard breather system is retained for road use, it is recommended to use 97 RON Super Unleaded fuel in
order to provide a higher resistance to detonation when using the track specification spark advance curve.
If the idle air control valve has been removed, check that the idle speed is within tolerance, as a low idle
speed may cause excessive HC emissions.
2000 /02
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