Phase transformer’s half bearings

Make

Alfa Romeo

Model

145/146 Factory Service Manual

Year

1994–1999

Section

Engine › Phase transformer’s half bearings

Technical data and maintenancePhase transformer’s half bearings

Phase transformer’s half bearings

	Unit : mm
Thickness of phase transformer half bearings "a"	2.992 ÷ 2.998
True functioning clearance between phase transformer and corresponding bearings	0.034 ÷ 0.086

ANGULAR VALUES OF THE TRUE DIAGRAM OF THE TIMING SYSTEM (Applying a checking play of 0.45 mm)

	Opening (before TDC)	"a"	-8° 17° (*)
Intake	Closing (after BDC)	"b"	40° 15° (*)
	Angular intake value	"c"	212°
	Exhaust	Opening (before BDC)	"d"	26°
Closing (after TDC)		"e"	1°
Angular exhaust value		"f"	207°
(*) : Values obtained with operating phase transformer

	Opening (before TDC)	"a"	-8° 17° (*)
Intake	Closing (after BDC)	"b"	40° 15° (*) 46° (**) 21° (**)
	Angular intake value	"c"	212°
	Exhaust	Opening (before BDC)	"d"	26°
Closing (after TDC)		"e"	1°
Angular exhaust value		"f"	207°
(*) : Values obtained with operating phase transformer (**) : For 98's models with M1.5.5. injection

	Opening (before TDC)	"a"	-3° 22° (*)
Intake	Closing (after BDC)	"b"	51° 26° (*)
	Angular intake value	"c"	228°
	Exhaust	Opening (before BDC)	"d"	47°
Closing (after TDC)		"e"	4°
Angular exhaust value		"f"	231°
(*) : Values obtained with operating phase transformer

02 Maintenance