Lotus Elise Service Notes page 222

ENGINE
Main bearings selection
Main bearings size selection table
Bearing ladder Crankshaft main journals Bearing ladder
Grade 1 Grade 2 Grade 3
Grade A BLUE - BLUE RED - BLUE RED - RED
Grade B BLUE-GREEN BLUE - BLUE
RED - BLUE
Grade C GREEN - GREEN BLUE - GREEN BLUE - BLUE
Colour code on edge of bearing
Thickness progression:
GREEN - Thin
BLUE - Intermediate
RED - Thick
~ CAUTION: If two bearing colours are to be used, thicker bearing must be fitted to bearing ladder.
/ j \ When original crankshaft is to be refitted, bearing shells must be as selected from table, DO NOT FIT
UNDERSIZE BEARINGS.
Main bearings type table
1 2 3 4
5
Block Plain Grooved Grooved Grooved Plain
Ladder Plain Plain Plain Plain Plain
OVERHAUL 8 5