Lotus Elise Service Notes page 481

Lotus Service Notes
Section OG
15. Examine the friction plate for oil contamination,
broken cush drive springs, cracking of the
spring apertures, or any other damage.
Measure the overall thickness across the
friction material;
New thickness: 6.9 - 7.4 mm
Service limit: 5.6 mm
Measure the depth of the rivet heads below
the friction material surface;
New rivet depth: 1.0 mm
Service limit: 0.2 mm
Measure axial run-out of the friction plate
surface;
New run-out: 0.8 mm max.
Service limit: 1.0 mm max.
b
Total thickness:
minimum = 5.6 mm
IX
n n
Rivet depth:
minimum = 0.20 mm
Renew the plate if any damage is detected, or if outside sen/ice limits. If there were symptoms of clutch
judder, the friction plate should be replaced as a precaution regardless of inspection results.
16. Inspect the surface of the pressure plate for excessive wear or scoring, and replace if in any doubt. If
there were symptoms of clutch judder, or the cover is accidentally dropped, the clutch cover assembly
should be replaced as a precaution regardless of inspection results.
17. Check the surface condition and run-out of the flywheel friction surface (see section ED. 14) and replace
the flywheel if necessary.
18. Withdraw the release bearing and examine for signs of wear, damage or roughness, and replace if in
doubt.
19. Examine the condition of the clutch release fork, pivot shaft bushes and oil seal (see transmission repair
section), and replace components as necessary.
Re-fitment of clutch assembly:
20. Smear the splines of the friction plate with molybdenum disulphide grease, and fit against the flywheel
with the 'FLYWHEEL SIDE' marking towards the flywheel. Fit the clutch cover over the friction plate and
locate on the flywheel dowels.
21. Fit clutch alignment mandrel T000T1483
to centralise the friction plate, and fit the
clutch cover retaining screws finger tight.
Using a diagonal sequence, progres-
sively tighten the cover screws, and
monitor the free turning of the mandrel.
If the diaphragm spring fingers begin to
pinch the mandrel, and a drag on its turn-
ing is felt, remove the tool. Finally
tighten the cover fixing screws to 25 Nm.
Centralising
mandrel
T000T1483
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Paqe 11