Lotus Elise Service Notes page 499

Lotus Service Notes Section XA
XA.7 - UNIBALL TOE LINK KIT - A111DQ127S
For competition use, especially if slick tyres are to be used with the associated increase in suspension
loadings, it is recommended to replace the rear suspension toe control links with uniball type links, complete
with brackets which support both ends of the pivot bolts, and provides additional strength to the chassis and
hub carrier fixings. This kit is designed to be used in conjunction with the Road Spring & Damper Set A111C0138S,
using the lowered ride height (100/110mm) as detailed in sub-section XA.8. The correct bump steer character-
istic is not attainable at the standard ride height.
At the inboard, chassis, end of the link, a steel bracket supports the rear end of the pivot bolt, and requires
that the chassis be drilled to accept the four M6 screws fixing each of the brackets. Locate the bracket using
the pivot bolt before marking up the four fixing hole positions on the chassis rear subframe. At the outboard
end of the link, a milled aluminium bracket is bolted to the bottom of the hub carrier, utilising two of the lower
ball joint plinth fixings. The pivot boit uses a sliding sleeve in the lower leg of the bracket to avoid any bending
stress in the bracket when the bolt is tightened. Note that each side of each of the Uniball joints must be faced
by the smaller end of a conical washer in order to allow full articulation of the joint.
A stack of six shim washers is provided at the outboard end of the link, to be distributed above and below
the Uniball in order to adjust the joint height and attain the desired bump steer characteristic. The default
setting of the stack is for one washer above the joint, and five below, but for fine tuning of the toe curve refer
to Service Notes sub-section XA.8.
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