Engine block

Make

Alfa Romeo

Model

155 Factory Service Manual

Year

1992–1998

Section

Complete engine block › Engine block

Engine – mechanical (Twin Spark)Engine block

Engine block

Unit: mm

Internal diameter of timing belt idle shaft housing bushings (1)	(a) 20.667 ÷ 20.698
Width of shoulder between the two timing belt idle shaft housing bushings (2)	(b) 44.320 ÷ 44.420

(1) During interventions both bushings must be replaced.

(2) Measurement must be carried out with the cover locked and the relative gasket installed.

Main supports

Unit: mm

Diameter of main supports	(a) 63.652 ÷ 63.664
Lenght of central main support shoulder	(b) 25.15 ÷ 25.20

03 Engine