Install and gauge connecting rod bearings - AR03.10-P-6111-06SXI
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ENGINE 642 in MODEL 207, 212, 218, 221
MODIFICATION NOTES
| 8.7.10 | Value altered: bolt connecting, rod bearing cap to connecting rod, see picture | *BA03.10-P-1001-01L |
CHECK VALUES FOR CONNECTING ROD
| Number | Designation | Engine 642 | |||
|---|---|---|---|---|---|
| BE03.10-P-1001-01G | Dimension | Distance from center of connecting rod bearing bore to connecting rod bush bore (L) | mm | 167.97 to 168.03 | |
| Width of connecting rod | Connecting rod bearing bore (B) | mm | 18.1 to 18.6 | ||
| Connecting rod bush bore (b) | mm | 21.94 to 22.0 | |||
| See picture | - | ||||
| BE03.10-P-1002-01G | Dimension | Connecting rod bearing shell basic bore (D1) ø | mm | 67.600 to 67.614 | |
| Permissible out-of-roundness and conicity of basic bore | mm | 0.007 | |||
| See picture | - | ||||
| BE03.10-P-1003-01G | Dimension | Permissible twist of connecting rod bearing bore to connecting rod bush bore over a length of 100 mm | mm | 0.100 | |
| BE03.10-P-1004-01G | Dimension | Permissible variation of axial parallelism of connecting rod bearing bore to connecting rod bush bore over a length of 100 mm | mm | 0.045 | |
| BE03.10-P-1005-01G | Dimension | Permissible weight difference between complete connecting rods in the same engine | g | 2 | |
| BE03.10-P-1006-01G | Dimension | Connecting rod bush inside ø(d) | mm | 30.038 to 30.044 | |
| See picture | - | ||||
| BE03.10-P-1007-01G | Dimension | Connecting rod bush outside dia. | mm | - | |
| BE03.10-P-1008-01G | Dimension | Connecting rod bush basic bore ø(d1) | mm | 32.500 to 32.525 | |
| See picture | - | ||||
| BE03.10-P-1009-01G | Dimension | Piston pin play in connecting rod bushing | mm | 0.028 to 0.039 | |
| BE03.10-P-1010-01G | Dimension | Peak-to-valley height (Rz ) inside connecting rod bush | μm | 5 | |
| BE03.10-P-1011-01G | Connecting rod bolt | Thread dia. | M | 8.5X1 | |
| Shank length when new | mm | 47 (±0.3) | |||
CONNECTING ROD
| Number | Designation | Engine 642 | ||
|---|---|---|---|---|
| BA03.10-P-1001-01L | Bolt, connecting rod bearing cap to connecting rod | Stage 1 short arm | Nm | 15 |
| Stage 2 long arm | Nm | 20 | ||
| Stage 3 short arm | Nm | 30 | ||
| Stage 4 long arm | Nm | 40 | ||
| Stage 5 short arm | Nm | 40 | ||
| ∠4° | 90 | |||
| Stage 6 long arm | ∠° | 90 | ||
| Stage 7 short arm | ∠° | 90 | ||
| Stage 8 long arm | ∠° | 90 | ||
| See picture | AR03.10-P-6111-06TI | |||
- Clean bearing points of connecting rod, connecting rod bearing caps and connecting rod bearing journals with a chamois leather.
Never use hard objects for cleaning to prevent damage.
Blow through oil ducts in direction of flow oil with compressed air.
- Install connecting rod bearing cap with connecting rod bearing shells.
- Lubricate thread and bolt head contact surface of connecting rod bolts with engine oil.
- Screw in connecting rod bolts and tighten according to the tightening instructions
.
The connecting rods are cracked (broken). The dimensional accuracy of the connecting rods can no longer be guaranteed, therefore new connecting rods must be fitted following removal. Otherwise engine damage can occur. The connecting rods are supplied with assembly screws, which must be replaced by connecting rods with assembly clamps to prevent loosening.