Caterham Seven User Manual download pdf (Page 125)

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58X0013A is for #3 cylinder

58X0014A is for #4 (rear) cylinder

When the primary pipes are in place, fit

the remaining fasteners but do not tighten

them.

Install the collector/catalyst over the

assembled primary pipes with the

threaded hole for the lambda probe faces

towards the side panel. Secure the

collector to the primary pipes with the two

springs, refer to Figure 103. Support the

weight of the collector such that the

primary pipes are not in contact with the

sides of the aperture and tighten the

primary pipe/cylinder head fasteners to 34

Nm.

Figure 102: Primary pipes and

collector/catalyst

Fit the Lambda probe into the threaded

hole in the collector/catalyst and connect

the probe plug to the corresponding

socket from the engine wiring loom.

Secure the Lambda probe connection and

wiring to the chassis ensuring that it

cannot contact the hot exhaust or any

moving part, refer to Figure 104.

NOTE

The lambda probe wiring passes under

the side of the car below the lower chassis

tube, it must not be routed through the

primary pipe aperture in the side panel.

Figure 103: Lambda probe connection

Undo the large worm drive clips and feed

them through the channels on the inside

of the silencer and collector/catalyst

guard. Fit the silencer guard to the

silencer body with the channels offset

towards the rear of the silencer and

tighten the clips, refer to Figure 105.

Ensure that the clip drives are not at the

bottom of the silencer where they could

contact the road. Attach the

collector/catalyst guard in the same

manner.

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