Sisu Diesel 645 Series Workshop Manual page 40

Earlier used connecting rod
E
max. 66,50
40 Nm + 90˚+ 90˚
Measure the length of the connecting rod screws. The length
should be max 66,50 mm. If the screw is longer, change it
with a new one. It is recommended that the screws are always
changed when they are unscrewed.
The connecting rods are divided into weight classes with in-
tervals of 20 g. The weight class (a letter) is stamped on the
side face of the connecting rod. All the connecting rods in one
engine should be of the same weight class, that is to say the
greatest permissible weight difference is 20 g.
The letters show the weight classes as follows:
Letter Part no. Weight
C
8363 55175 2931---2950 g
D 8363 55176 2951---2970 g
E
8363 52751 2971---2990 g
F 8363 52752 2991---3010 g
G
8363 52753 3011---3030 g
H 8363 52754 3031---3050 g
I 8363 52755 3051---3070 g
J 8363 52756 3071---3090 g
K
8363 52757 3091---3110 g
L 8363 52758 3111---3130 g
M 8363 52759 3131---3150 g
N 8363 52760 3151---3170 g
0 8363 52761 3171---3190 g
P 8363 52762 3191---3210 g
R 8363 52763 3211---3230 g
S 8363 52764 3231---3250 g
T 8363 52765 3251---3270 g
U 8363 52766 3271---3290 g
V
8363 52767 3291---3310 g
X 8363 52768 3311---3330 g
Y 8363 52769 3331---3350 g
Z 8363 52770 3351---3370 g
Connecting Rods and Pistons
New connecting rod from engine number L 1110
G
40 Nm + 90˚
Note! Always change the screws when opened.
The connecting rods are divided into weight classes with in-
tervals of 20 g. The weight class (a letter) is stamped on the
side face of the connecting rod. All the connecting rods in one
engine should be of the same weight class, that is to say the
greatest permissible weight difference is 20 g.
The letters show the weight classes as follows:
Letter Part no. Weight
E 8368 64101 2230---2249 g
F
8368 64102 2250---2269 g
G 8368 64103 2270---2289 g
H
8368 64104 2290---2309 g
I 8368 64105 2310---2329 g
J
8368 64106 2330---2349 g
K 8368 64107 2350---2369 g
6---2
Torx E18