Yaroslavl ???-236, Maintenance Manual

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Notes
1 Control of the thread wear М68х2-6g according to the defect 18 should be performed if the disassembling of the fastener nut of the front
counter balance is needed.
2 Wear of the gear bearing according to the defect 7 should be performed if it is necessary to replace the gear 238Б-1005030.
Table 7 – Categorical repair dimensions of the crankshaft
Number of
the defect
2
Name of the dimension
Diameter of the connecting rod bearings
Repair dimensions,
mm
87.75
-0.022
- Thickness of the connecting rod liner in the middle part (liners are shipped by manufacturer)
2.615
- 0.012
2 Diameter of the main bearings 109.75
-0.022
-
Thickness of the liner of the main bearing in the middle part (liners are shipped by manufacturer)
3.090
- 0.012