Technical data

~ ‘1’
r
ENGINE MAIN MECHANICAL UNIT
‘CRiXKS AND ADJUSTMENTS ~
,’
TIMING DATA (1)
Camshadt
Alfa Romeo Part No.
129.958
Normal;valve clearance “a”
8, ~
‘1 ~
Normal cam lift
Intake
Exhaust
Intake
Exhaust
0.30 (0.012)
0.30 (0.012)
~ 7.20 (0.283)
7.64 (0.301)
I
(1) AIl values refer to cold engine
TI~II~~~: DIAGRAM (ANGULAR VALUES) (11
(crarjkshpjt clockwise rotation, viewed from front side)
I
T.D.C.
”
diagrani
88
iDia,gram for
Intake
Clearance for checking
Opens (A.T.D.C.)
mm (in)
1.2 (0.047)
3O+2O
Closes (A.B.D.C.)
200 f 30
timlng check
Clearance for checking
mm (in) 1.65 (0.065)
Exhaust
Opens (8.8.D.C.)
260 f 30
Closes (B.T.D.C.)
1oo+2°
(1) ~AI1 values refer to cold engine
Opens (B.T.D.C.)
“a”
220 k 5O
‘1
Intake
Closes (A. 8. D. C.)
<le>< 1
1:
~ 460,? 50
Intake phase angle
‘<c#l
250°
Exhaust
Opens (8.B.D.C.)
Closes (A.T.D.C.)
Exhaust phase angle
“d”
“b”
“f”
60’ f 5O
~ 24”+5’
264=’
PA13335?0883300
m-37 ,,,,
May 1948