Vauxhall Workshop Service and Repair Manuals

Con-rod Bearing, Replace  

  Remove, Disconnect   

Disconnect ground cable from battery. Drain engine oil. Unbolt front exhaust pipe from exhaust manifold and intermediate flange bracket (15 D, 17 D, X 17 D), or turbocharger connection. Remove flywheel cover plate. Unbolt oil pan from cylinder block. Remove oil intake pipe and oil baffle.

Turn pistons to centre position.   Loosen con-rod bearing cap uniformly and remove with bearing shell.   Press con-rod off from bearing journal and remove bearing shell.     Clean    Clean con-rod bearing journal, con-rod bearing cap and all sealing surfaces.

 

The con-rods are marked I, II or III depending on big end diameter (see illus. I).   Con-rod mark - Bearing shell colour code     I  blue   II  black   III  brown       Measure    Measure con-rod bearing clearance and con-rod lateral clearance - see operation "Crankshaft Bearing Clearance, Measure" and "Con-rod Bearing, Check (Lateral Clearance)" (see illus. II).     Install, Connect    Coat new bearing shell halves with engine oil, insert in con-rod and con-rod bearing cap. Place con-rod on bearing journal and bolt on bearing cap (see illus. III).     Torque - Angle Method    Con-rod bearing cap to con-rod - 25 Nm / 18 lbf. ft. + 100 ° + 15 ° 1) . Turn further with KM-470-B.

1)  Use new bolts.  

  Install, Connect   

Install oil baffle and oil intake pipe with new seal ring (see illus. I).     Tighten (Torque)    Oil baffle to cylinder block   26 Nm / 19 lbf. ft.   Oil intake pipe to cylinder block   19 Nm / 14 lbf. ft       Install, Connect    Coat joints of sealing surfaces on cylinder block with adhesive sealing compound (black) (see illus. II). Install oil pan with new seal and flywheel cover plate. Attach exhaust pipe in rubber clamps and bolt with new seal ring to exhaust manifold / turbocharger connection ports and to cylinder block bracket. Install oil drain plug with new seal ring.   Top up engine oil to mark "Max" on oil dipstick.     Tighten (Torque)    Oil pan to cylinder block   10 Nm / 7 lbf. ft   Oil drain plug to oil pan   78 Nm / 58 lbf. ft   Exhaust pipe to exhaust manifold/turbocharger connection   70 Nm / 52 lbf. ft