Suzuki Engine 2002 GRAND VITARA SQ420 Service Manual page 577

6A4-88 ENGINE MECHANICAL (J20 ENGINE)
3) Place a piece of gaging plastic (1) the full width of bearing
(parallel to crankshaft) on journal, avoiding oil hole.
4) Install lower crankcase (1) to cylinder block.
Tighten crankcase bolts, following sequence in figure.
Tighten crankcase bolts to specified torque.
Tightening torque
Crankcase bolt with 10 mm (0.394 in.) thread diameter
(a) : 60 N·m (6.0 kg-m, 43.5 lb-ft)
Crankcase bolt with 8 mm (0.315 in.) thread diameter
(b) : 27 N·m (2.7 kg-m, 19.5 lb-ft)
NOTE:
Do not rotate crankshaft while gaging plastic is installed.
2. Bolt (10 mm thread diameter)
3. Bolt (8 mm thread diameter)
5) Remove lower crankcase and using scale (2) on gaging
plastic (1) envelop, measure gaging plastic width at its wid-
est point. If clearance exceeds its limit, replace bearing.
Always replace both upper and lower inserts as a unit.
A new standard bearing may produce proper clearance. If
not, it will be necessary to regrind crankshaft journal for use
of 0.25 mm (0.00984 in.) undersize bearing.
After selecting new bearing, recheck clearance.
Crankshaft bearing clearance
Standard : 0.032 – 0.052 mm (0.0013 – 0.0020 in.)
Limit : 0.060 mm (0.0023 in.)