Page 6
Lotus Service Notes Section AJ
6. Re-assemble the subframe to the chassis using Duralac MSDS anti-corrosion compound (A111C6017S)
between the mating faces and inserting the appropriate shim stacks. Fit all fixing bolts and tighten evenly
and progressively to a final torque of 45 Nm.
AJ.4 - FRONT SUBFRAME
The front subframe uses the same construction techniques as the main chassis tub, with aluminium alloy
extrusions bonded and riveted together to provide mounting points for the front suspension, front body clam-
shell and cooling radiators, and also houses the heating/a.c. system. The subframe legs are secured at each
side to the front face of the chassis tub by three bolts, and reinforced by a tie plate on the outer surface which
uses six bolts.
To remove/refit front subframe
Before removing the front subframe, it is recommended to remove all front bodywork, the front suspension
assembly and the HVAC equipment in order to allow easier handling of the subframe and to minimise potential
component damage.
1. Remove the front clamshell, 'A' panels and front bumper.
2. Recover the a.c. refrigerant and drain the engine cooling radiator. Remove the HVAC unit (see section
PN) and disconnect all hoses, pipes, harnesses and cables.
3. Disconnect the steering column from the rack pinion shaft.
4. Provide support for the subframe before releasing the six bolts securing the tie plate to each subframe
leg. Then progressively and evenly release the three bolts securing the inboard side of each subframe
leg to the chassis. Withdraw the subframe.
5. On re-assembly, mate the subframe to the chassis and locate with the three bolts and each side. Fit the
tie plates to the outboard faces and locate the six bolts at each side. Progressively and evenly tighten all
18 off M10x30 bolts to a final torque of 45 Nm.
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