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Lotus Service Notes Section LN
depressing the retaining barb behind the resistor block, and sliding the block downwards.
10. Before re-fitting the assembly back into the tank, ensure that all connector plugs are secure, and that the
top sealing ring is in good condition. To aid subsequent removal, apply a dab of MoS2 grease to each of
the retaining studs on the tank before fitting the pump assembly. Feed the unit through the tank aperture
and fit the retaining ring over the eight studs. Note that the cut out and dowel holes in the clamp plate
define its orientation in respect to the pump. A flat on the clamp plate must align with the front edge of the
tank.
11. Fit the earth cable onto the stud positioned at 4 O'clock as viewed from behind. Fit all fixing nuts and
nip tighten to 2 Nm in a diagonal sequence before final tightening to 5 - 6 Nm. Ensure the yellow clip is
securely engaged with the fuel supply pipe connector.
LN.5 - FUEL TANK
The 60 litre fabricated stainless steel fuel tank is mounted within an open bottomed chassis crossmember
ahead of the engine bay and beneath the floor of the cabin rear compartment. The fuel filler neck is connected
to the RH rear corner of the tank, with a breather connection at the LH front corner, and the pump/gauge sender
unit mounted centrally in the front upper surface. The tank is clamped into position by a pair of extruded alloy
cradles incorporating transverse restraints, bolted fore/aft across the underside of the chassis bay, with the tank
located and protected by a set of foam strips and pads interposed between the tank and chassis.
Fuel tank removal/refit
This operation is most easily and safely performed when the fuel level is lowest. If this is not possible, it
is recommended to pump out the fuel into a suitable container in order to minimise the tank weight.
1. De-pressurise the fuel system (see sub-section LN.3).
2. Top connections: Remove the cabin rear compartment floor trim. Remove the central access panel and
disconnect the fuel feed pipe and harness connector from the tank. Plug the fuel tank port. Remove the
access panel at the left hand side of the compartment, and disconnect the beather pipe from the tank.
Plug the tank port.
3. Filler hose: From inside the car, remove the rear bulkhead access panel, and release the filler hose from
the filler neck, and seal the hose. Also release the fuel tank earth cable from the chassis stud at the right
hand front of the engine bay
4. Undershield: Remove the 26 fixings and remove the fuel tank undershield.
5. Parking brake cable: Release the parking brake primary cable from the secondary cables, and free from
any chassis fixings.
6. Gearchange cables: Release the gearchange cables from the chassis fixings to provide sufficient slack
to allow tank withdrawal.
7. Cradles: Provide alternative support for the tank before releasing the four screws from each of the two
tank retaining cradles. Lower the tank from the chassis.
8. Retting: Before refitting the tank, ensure that all the foam pads are in position and secure on either the
chassis or tank, and renew if necessary. Check that all apertures are sealed. Check that the fuel feed
pipe is in position along the front of the tank bay.
- Carefully raise the tank into position and ensure that it is firmly in contact with the front pad.
- Fit the retaining cradles using Permabond A130 (A912E7033V) on the bolt threads, and torquing to 24
Nm.
- Continue in reverse order to removal.
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