904, 906, 924, 926 in model 368, 382, 384, 634, 685.282/284/289/290, 688, 979
Engine
904, 924 in model 688, 979
Connecting rod test values
Number
Designation
Engine 904.9, 906.9 to 456372
Engine 904.9, 906.9 from 456373
BE03.10-B-1005-01C
Maximum roundness and tapper allowed in the sleeves housing and the connecting rod bushing
sleeves housing
mm
0,01
0,01
busing housing
mm
0,006
0,006
Connecting rod test values
Number
Designation
Engine 924.9, 926.9 without Code MS5
Engine 924.9 and 926.9 with Code MS5
BE03.10-B-1005-01C
Maximum roundness and tapper allowed in the sleeves housing and the connecting rod bushing
sleeves housing
mm
0,01
0,01
busing housing
mm
0,006
0,006
Connecting rod test values
Number
Designation
Engine 904.9, 906.9 to 456372
Engine 904.9, 906.9 from 456373
BE03.10-B-1009-01C
Connecting rod busing housing diameter
Normal
mm
44,000...44,025
46,000...46,025
Repair I
mm
44,200...44,225
46,200...46,225
repair II
mm
44,500...44,525
46,500...46,525
Connecting rod test values
Number
Designation
Engine 924.9, 926.9 without Code MS5
Engine 924.9 and 926.9 with Code MS5
BE03.10-B-1009-01C
Connecting rod busing housing diameter
Normal
mm
46,000...46,025
46,500...46,525
Repair I
mm
46,200...46,225
-
repair II
mm
46,500...46,525
-
Connecting rod test values
Number
Designation
Engine 904.9, 906.9 to 456372
Engine 904.9, 906.9 from 456373
BE03.10-B-1010-01C
Connecting rod bushing external diameter
Normal
mm
44,070...44,100
46,070...46,100
Repair I
mm
44,270...44,300
46,270...46,300
repair II
mm
44,570...44,600
46,570...46,600
Connecting rod test values
Number
Designation
Engine 924.9, 926.9 without Code MS5
Engine 924.9 and 926.9 with Code MS5
BE03.10-B-1010-01C
Connecting rod bushing external diameter
Normal
mm
46,070...46,100
46,590...46,620
Repair I
mm
46,270...46,300
-
repair II
mm
46,570...46,600
-
Connecting rod test values
Number
Designation
Engine 904.9, 906.9 to 456372
Engine 904.9, 906.9 from 456373
BE03.10-B-1011-01C
Connecting rod bushing internal diameter
mm
40,03...40,04
42,04...42,05
Connecting rod test values
Number
Designation
Engine 924.9, 926.9 without Code MS5
Engine 924.9 and 926.9 with Code MS5
BE03.10-B-1011-01C
Connecting rod bushing internal diameter
mm
42,04...42,05
44,05...44,06
Connecting rod test values
Number
Designation
Engine 904.9, 906.9 to 456372
Engine 904.9, 906.9 from 456373
BE03.10-B-1012-01C
Interference between the busing and the connecting rod housing
mm
0,045...0,100
0,045...0,100
Connecting rod test values
Number
Designation
Engine 924.9, 926.9 without Code MS5
Engine 924.9 and 926.9 with Code MS5
BE03.10-B-1012-01C
Interference between the busing and the connecting rod housing
mm
0,045...0,100
-
1
Pull, under pressure, the bushing (2) from the connecting rod (1).
Utilize appropriate drift and support base to pull the bushing (2) uniformly.
Be careful and do not damage the connecting rod bushing housing.
2
Check the housing of the bushing in the connecting rod (1). If signs of material removal (from bushing extraction), deformation and /or outside diameter are present, machine bushing housing to subsequent tolerance (repair I /repair II).
It is indispensable to observe that the bushing outside diameter and the housing inside diameter, be within the same degree of tolerance. With this, the required assembly interference will be obtained, between the bushing and the housing.
B03.10-0005-01
3
Support the connecting rod (1) on an appropriate base and install the bushing (2), under pressure, with the help of an appropriate drift..
Position the bushing (2) with the joint facing one side of the connecting rod, i.e., transversely (90° from the vertical centerline).
4
Internally machine the bushing (2) until obtaining the recommended diameter.
5
Thin out the sides of the bushing (2) following the trapeze shape of the connecting rod (1).
The replacement bushing is supplied in a parallel shape, in order to facilitate its installation in the connecting rod.
When thinning out the bushing sides, avoid the cutting tool contact with the connecting rod.
