Vauxhall Workshop Service and Repair Manuals

Crankshaft Bearing Play, Check (Determine Bearing Play with Plastigage)  

Notice: 

To check crankshaft bearing play, the fastening bolts can be used again.  

  Inspect   

Bearing play - bearing cover removed.     Important!    To prevent the thread from tearing when removing the bearing cap, remove grease from crankshaft bearing journal and lightly coat bearing shell with clean engine oil. Do not turn crankshaft.     Measure    Cut Plastigage (deformable plastic threads) to width of bearing and lay axially between crankshaft bearing journal and bearing shell (arrow). Install bearing cap to specified torque - tightening torque 90 Nm / 66 lbf. ft. + 60 ° + 15 ° .

  Remove, Disconnect   

Detach bearing cap again.     Measure    Compare width of flattened plastic thread (arrow) with measuring scale.   "Plastigage" is available for various measuring ranges.   Perm. crankshaft bearing clearance: see Technical Data.   Notice:  When reading the value, do not confuse millimetres with inches on the measuring scale.     Install, Connect    Attach crankshaft bearing cap to cylinder block with new fastening bolts - tightening torque 90 Nm / 66 lbf. ft. + 60 ° + 15 ° .