Extra Information

Main bearing journals
Diameter, standard
0,250 m m under-size . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . .
0,500 mm under-size- . . . . . . . . . . . . .
59,987-60,000 (2,36169-2,36220 in .)
59,737-59,750 (2,35185-2,35236 in .)
59,487-59,500 (2,34200-2,34252
in .)
Big-endbearing
shells
Thickness, standard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
0,250 mm over-size . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
0,500 mm over-size . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1,478-1,488 (0,05819-0,05858 in .)
1,603-1,613 (0,06311-0,06350 in .)
1,728-1,738 (0,06803-0,06843
in .)
Connecting rods
Axial clearance at the crankshaft
. . . . . . . . . . . . . .
. . .
. . . . . .
0,15-0,35 mm (0,00590-0,01378 in .)
Camshaft
Axial

clearance . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Radial clearance in bearings . . . . . . . . . . . .
Camshaft diameter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Lifting
height of cams . . . . . . . . . . . .--- .---------- . . .-- . .
0,160-0,300 mm (0,0063-0,01181 in .)
0,020-0,075 mm (0,000787-0,00295 in .)
46,975-47,000 (1,8494-1,85039 in .)
5,48-5,52 mm (0,21575-0,21732 in .)
Main
bearing shells
Thickness, standard . . .- - . - . . . . . . . . . . . . . . . . . . . . . . . . 2,987-2,997 (0,11760-0,11799 in .)
0,250 mm over-size . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3,112-3,122 (0,12252-0,12291
in .)
0,500 mm over-size . . . . -- - . - . . . . . . . . . . . . . . . . . . . . . . . . . 3,237-3,247 (0,12744-0,12783 in .)
Big-end journals
Diameter, standard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47,989-48,000 (1,88933-1,88976 in .)
0,250 mm aver-size --- . . . . . . . . 47,739-47 .750 (1,87949-1,87992
in .)
0,500
m m over-size
.- .-- . .- . . . . . . . . . . . . . . . . . . . . . . . . . . .
47,489-47,500
(1,86965-1,87008 in .)
Bushing diameter . . . . . . . . . . . . . . . . . . . . . .------------ . . . 47,02-47,05 mm (1,85118-1,85236 in .)
Cylinder head
Material . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Special alloy cast iron
Inlet valves
20031
Disc diameter
. . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34,4-34,6 mm (1,35433-1 .36220 in .) 35,8-36,0 mm
Stem diameter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7,955x7,970 mm (0,31319-0,31378 in .) 7,995-7,970 mm
Valve seat angle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44°55'-44
°
85' 29°45'--30 15'
Cylinder head seat angle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45° 30°
Seat width in the cylinder head . . . . . . . . . . . . . . . . . . . . . . . . appr
. 1 mm
(0,03)37 in .) appr . 1 mm !0 .03)37 in .
Clearance,
cold/warm
engine . . . . . . . . . . . . . . . . . . . . . . . . . .
Exhaust valves
Disc diameter . . . . . . . . . . ---- . . . . . . . . . . . . . . . . . . . . . . . . . . .
0,3 mm (0,011811 in .) 0 .3 mm (0,011811 in .)
29,9-30,1
mm (1,14716-1,18504 in .)
Stem diameter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7,950-7,465 mm
(0
.31299-0,31339 in .)
Valve seat angle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
44°55'-44°85'
Cylinder head seat
angle
- . . - . . . . . . . . . . . . . . . . . . . . . .
45 °
Seat width-in the cylinder head . -- . . . . . . . . . . . . . . . . . . . . . appr
. 1 mm
(0,03937 in .)
Clearance, cold/warm engine ----- . . . . . . . . . . . . .-- . . .---
0,3 mm (0,011811 in .)
Valve guides
Length,
inlet valve
. . . . . . . . . . . . . . . . . . . . .
.
. . . . . . . . . . . . . . 38 mm (1,49606 in .)
Length, outlet valve . . . .
.
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
mm
(1,49606 i n .)
Inner diameter ------------ . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8,000-8,015 (0,31496-0,31555 in .)
Height
above
spring-plane
of cylinder head
. . . . . . . . . . . . .
8,70-9,30 mm (0,34252-0,36614 in .)
Valve springs
Length, unloaded . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
42,5 mm
(1,67323 in .)
Loaded with 170±10 N (17±1
kp)
. . . . . .
.
. . . . . . . . . . . . . . .
32 mm (1 .25984 in .)
Loaded with 300±20 N (30±2 kp) . . . . . . . . . . . . . . . . . . . . . .
24 mm
(0,94488 in .)