Difference between revisions of "Engine Specs -S65/S85 Main Bearings"
From Wiki-DIY
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== Main Journals & Bearing Clearance == | == Main Journals & Bearing Clearance == | ||
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!Crankshaft Main Journals & Bearings | !Crankshaft Main Journals & Bearings | ||
!Metric Dimensions | !Metric Dimensions | ||
Revision as of 05:42, 10 January 2015
Contents
Main Journals & Bearing Clearance
| Crankshaft Main Journals & Bearings | Metric Dimensions | SAE (Inch) Dimensions |
|---|---|---|
| Main Journal Dimensions | 59.9758 mm | 2.36125 inch |
| Main Journal Variance | 59.9694 - 59.9821 mm | 2.36100 - 2.36150 inch |
| Main Journal Tolerance | -0.0063, +0.0063 mm | -0.00025, +0.00025 inch |
| Bed Plate + Bearing Dimensions | 60.0164 mm | 2.36285 inch |
| Bed Plate + Bearing Variance | 60.0126 - 60.0202 mm | 2.36270 - 2.36300 inch |
| Nominal Main Bearing Clearance | 0.0406 mm | 0.00160 inch |
| Bearing Clearance Variance | 0.0305 - 0.0508 mm | 0.00120 - 0.00200 inch |
| Bearing Clearance Tolerance | -0.0102, +0.0102 mm | -0.00040, +0.00040 inch |
Main Bearing Part Numbers
| BMW Part Number | Description | Location | Color | Standard Size Bearings | Application | |
|---|---|---|---|---|---|---|
| 11 21 7 841 610 | Main Bearing Shell | 1-4 | Top | Green | 60.00 mm (+0.00 mm) | S85B50, S65B40, S65B44 |
| 11 21 7 841 606 | Main Bearing Shell | 1-4 | Bottom | Green | 60.00 mm (+0.00 mm) | S85B50, S65B40, S65B44 |
| 11 21 7 841 618 | Main Guide Bearing Shell | 5 | Top | Green | 60.00 mm (+0.00 mm) | S85B50, S65B40, S65B44 |
| 11 21 7 841 614 | Main Guide Bearing Shell | 5 | Bottom | Green | 60.00 mm (+0.00 mm) | S85B50, S65B40, S65B44 |
Main Bearing History
The following is the main bearing history of the "Green" bearings. Yellow and Violate bearings follow an identical pattern, but with their respective part numbers. Maybe if I get some time, I'll add them to this list.
| BMW Part Number | Description | Location | Color | Standard Size Bearings | Application | Prod. Start | Prod. End | Superceded By |
|---|---|---|---|---|---|---|---|---|
| 11 21 7 836 532 | Main Bearing Shell | Top | Green | 60.00 mm (+0.00 mm) | S85B50 | Sep-04 | Feb-08 | 11 21 7 841 489 |
| 11 21 7 836 517 | Main Guide Bearing Shell | Top | Green | 60.00 mm (+0.00 mm) | S85B50 | Sep-04 | Feb-08 | 11 21 7 841 499 |
| 11 21 7 836 539 | Main Bearing Shell | Bottom | Green | 60.00 mm (+0.00 mm) | S85B50 | Sep-04 | Feb-08 | 11 21 7 841 484 |
| 11 21 7 836 524 | Main Guide Bearing Shell | Bottom | Green | 60.00 mm (+0.00 mm) | S85B50 | Sep-04 | Feb-08 | 11 21 7 841 494 |
| 11 21 7 841 489 | Main Bearing Shell | Top | Green | 60.00 mm (+0.00 mm) | S85B50, S65B40, S65B44 | Sep-07 | Jul-11 | 11 21 7 841 610 |
| 11 21 7 841 499 | Main Guide Bearing Shell | Top | Green | 60.00 mm (+0.00 mm) | S85B50, S65B40, S65B44 | Sep-07 | Dec-08 | 11 21 7 841 618 |
| 11 21 7 841 484 | Main Bearing Shell | Bottom | Green | 60.00 mm (+0.00 mm) | S85B50, S65B40, S65B44 | Sep-07 | Apr-11 | 11 21 7 841 606 |
| 11 21 7 841 494 | Main Guide Bearing Shell | Bottom | Green | 60.00 mm (+0.00 mm) | S85B50, S65B40, S65B44 | Sep-07 | Jan-09 | 11 21 7 841 614 |
| 11 21 7 841 610 | Main Bearing Shell | Top | Green | 60.00 mm (+0.00 mm) | S85B50, S65B40, S65B44 | Nov-08 | Present | |
| 11 21 7 841 618 | Main Guide Bearing Shell | Top | Green | 60.00 mm (+0.00 mm) | S85B50, S65B40, S65B44 | Dec-08 | Present | |
| 11 21 7 841 606 | Main Bearing Shell | Bottom | Green | 60.00 mm (+0.00 mm) | S85B50, S65B40, S65B44 | Nov-08 | Present | |
| 11 21 7 841 614 | Main Guide Bearing Shell | Bottom | Green | 60.00 mm (+0.00 mm) | S85B50, S65B40, S65B44 | Nov-08 | Present |
Supporting Measurements
| Main-1 | Main-2 | Main-3 | Main-4 | Main-5 | Bearing-1 | Bearing-2 | Bearing-3 | Bearing-4 | Bearing-5 | Clear-1 | Clear-2 | Clear-3 | Clear-4 | Clear-5 | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Crank-1 | 2.36145 | 2.36145 | 2.36130 | 2.36150 | 2.36140 | 2.36270 | 2.36270 | 2.36300 | 2.36300 | 2.36290 | 0.00125 | 0.00125 | 0.00170 | 0.00150 | 0.00150 | ||
| Crank-2 | 2.36110 | 2.36110 | 2.36120 | 2.36100 | 2.36120 | 2.36270 | 2.36270 | 2.36300 | 2.36300 | 2.36290 | 0.00160 | 0.00160 | 0.00180 | 0.00200 | 0.00170 |
| Min | Nominal | Max | Min Dev. | Max Dev. | |
|---|---|---|---|---|---|
| Journal | 2.36100 | 2.36125 | 2.36150 | -0.00025 | 0.00025 |
| Bearing | 2.36270 | 2.36285 | 2.36300 | -0.00015 | 0.00015 |
| Clearance | 0.00120 | 0.00160 | 0.00200 | -0.00040 | 0.00040 |
