Page 74 - E BOOK ENGINE MECHANICAL M2
P. 74

4. SERVICE POINTS OF 4D56 ENGINE COMPONENT


                                                       (6) Bearing Cap Installation
                                                       1. Install according to the front mark and cap No.
                                                       2. Apply engine oil to the threaded portion and seating
                                                       face of the bolt.
                                                       3. Tighten the bearing cap bolts in the illustrated se-
                                                       quence to 40 ± 2 Nm.
























                           Fig. 4-37

                                                              When the tightening angle is smaller than the
                                                              specified tightening angle, the appropriate tight-
                                                              ening capacity cannot be secured.
                                                       Cau-   When the tightening angle is larger than the
                                                       tion
                                                              specified tightening angle, remove the bolt to
                                                              start from the beginning again according to the
                                                              procedure.

                                                       4.  Using  the  special  tool  Angle  gauge  (MB991614),
                                                       tighten the bearing cap bolts in the illustrated sequence
                                                       by a further 35° to 39°.
                           Fig. 4-38


                                                       5. After installing the bearing caps, make sure that the
                                                       crankshaft turns smoothly and the end play is correct. If
                                                       the end play exceeds the limit, replace crankshaft bear-
                                                       ings.
                                                           Standard value: 0.05 - 0.25 mm
                                                           Limit: 0.45 mm







                           Fig. 4-39















                                                          4 - 13                          Pub. No. PTAE1228
   69   70   71   72   73   74