Crankshaft

Make

Alfa Romeo

Model

155 Factory Service Manual

Year

1992–1998

Section

Complete engine block › Crankshaft

Engine – mechanical (V6)Crankshaft

	A - Red	63.657 ÷ 63.663
Diameter of main supports (a)	B - Blue	63.663 ÷ 63.669
C - Green	63.669 ÷ 63.675
Length of rear main support shoulder (b)	26.450 ÷ 26.500

Crankshaft

	A - Red	59.973 ÷ 59.979
Diameter of main journal (a)	B - Blue	59.967 ÷ 59.973
C - Green	59.961 ÷ 59.967
Diameter of rod journal (b)	A - Red	51.990 ÷ 52.000
B - Blue	51.980 ÷ 51.990
Length of rear main journal (c)	31.300 ÷ 31.335
Maximum ovalization of main and rod journal (1)	0.004
Maximum taper of main and rod journals (2)	0.010
Maximum error of parallelism between main and rod journals	0.015
Maximum eccentricity between main journals	0.040
Maximum deviation between centre lines of handle and main journal	0.300

(1) Ovalization X:Y

(2) Taper A:B

07 Engine