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da
ar0140b9291c
Boring and honing cylinder bores
Type ar · emne 01.40 · version 0203 · 2020-02-08
Gælder for: Engine 924.9 in model 368.0/1, 384.06/07, 685.282/284/289/290, 979.2 Engine 924.929 in model 384.3 Engine 926.9 in model 368.0/1, 382.1, 384.06/07, 634.0
Ikke tilgængelig på “da”; vises på Engelsk.
Placering
Funktionsgruppe 1 Motor › 01 Motor komplet, motorudluftning, topstykke, motorblok › 01.40 Motorblok, takthusdæksel, endedæksel — Serie 368 (modeller 0**, 1**) · Serie 382 (modeller 1**) · Serie 384 (modeller 06*, 07*, 3**) · Serie 634 (modeller 0**) · Serie 685 (modeller 282, 284, 289, 290) · Serie 979 (modeller 2**)
EinPAS 15 Motor › 15.15 forbrændingsmotor komplet/motorblok/krumtapdrev › 15.15.31 motorblok/olieudskiller/udluftning — Serie 368 (modeller 0**, 1**) · Serie 382 (modeller 1**) · Serie 384 (modeller 06*, 07*, 3**) · Serie 634 (modeller 0**) · Serie 685 (modeller 282, 284, 289, 290) · Serie 979 (modeller 2**)
Gælder også for motorer/gearkasser: 924 9**, 924 929, 926 9**
AR01.40-B-9291C
Boring and honing cylinder bores
07.02.2020
Engine
924.9 in model 368.0/1, 384.06/07, 685.282/284/289/290, 979.2
Engine
924.929 in model 384.3
Engine
926.9 in model 368.0/1, 382.1, 384.06/07, 634.0
1
Engine block
2
Cylinder
A
Engine block height
a
Chamfer on cylinder top edge
Remove
1
Remove the crankshaft
AR03.20-B-4351A
2
Remove the oil injectors from the pistons
AR18.00-B-4000E
Machining
3
Secure the engine block (1) in the boring machine
4
Centralize the cylinder (2) to be machined, with regard to the grinding machine
Observe the work sequence to avoid overheating damage: 4-cylinder engines; 2-4-1-3 and 6-cylinder engines; 1-3-5-2-4-6.
5
Set the tool and carry out the machining of the cylinder
The machining must be carried out in various stages until reaching a diameter of 0,05 mm smaller than the final diameter.
Boring machine setting values:
.Cylinder's internal diameter, finishing
*BE01.40-B-1001-02C
6
Rectify the block surface at a height corresponding to the degree of the cylinders diameter
AR01.40-B-9133C
The block height (A) must meet the tolerance degree of the cylinder's diameter (normal, repair I, repair II or repair III).
7
Polish the cylinder (2) until obtaining the desired diameter (finishing)
Honing machine setting values:
.Cylinder's internal diameter, finishing
*BE01.40-B-1001-02C
.Out of round and taper in the cylinder/deviation from the cylinder's travel (with liner and without liner)
*BE01.40-B-1002-02C
.Maximum admissible wear at the sliding surface of the cylinders (with and without liners)
*BE01.40-B-1003-02C
.Roughness (R3Z) cylinder barrel
*BE01.40-B-1004-02C
Clean
8
Clean the engine block
Install
9
Install the piston's oil injectors
AR18.00-B-4000E
10
Install the crankshaft
AR03.20-B-4351A
Number
Designation
Engine 924.9, 926.9
BE01.40-B-1001-02C
Cylinder's internal diameter, finishing
Normal
Tolerance A
mm
105,985...105,991
Tolerance B
mm
105,992...106,008
Tolerance C
mm
106,009...106,015
Repair I
Tolerance A
mm
106,285...106,291
Tolerance B
mm
106,292...106,308
Tolerance C
mm
106,309...106,315
Repair II
Tolerance A
mm
106,585...106,591
Tolerance B
mm
106,592...106,608
Tolerance C
mm
106,609...106,615
Repair III
Tolerance A
mm
106,885...106,891
Tolerance B
mm
106,892...106,908
Tolerance C
mm
106,909...106,915
Number
Designation
Engine 924.9, 926.9
BE01.40-B-1002-02C
Out of round and taper in the cylinder/deviation from the cylinder's travel (with liner and without liner)
contact surface
mm
0,012
Number
Designation
Engine 924.9, 926.9
BE01.40-B-1003-02C
Maximum admissible wear at the sliding surface of the cylinders (with and without liners)
At the reversion point of the first piston ring
mm
0,1
At the center of the cylinder
mm
0,05
Number
Designation
Engine 924.9, 926.9
BE01.40-B-1004-02C
Roughness (R3Z) cylinder barrel
micron
2,5...4,0
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