Crankshaft & Main Bearings
- Ensure main bearing caps are numbered for location, and arrow on cap points toward timing belt end of crankshaft. Remove main bearing cap bolts in proper sequence. See Fig 1
.
- Cylinder block main bearing bore size is indicated by numerical size mark stamped on cylinder block. See Fig 2
. Main bearing journal size is determined by size marks, given in dashes (--), located near crankshaft counterweight. See Fig 3
.
- If color code on original bearing cannot be obtained, use size mark on cylinder block and crankshaft to determine proper color-coded main bearing. See Fig 4
or Fig 5
.
- When installing main bearing caps, ensure arrow on cap points toward timing belt end of crankshaft. Coat bolt threads with engine oil before installing.
- Tighten bolts in sequence to specification. See Fig 1
. See TORQUE SPECIFICATIONS
. Ensure crankshaft end play is within specification. See CRANKSHAFT, MAIN & CONNECTING ROD BEARINGS
table under ENGINE SPECIFICATIONS.
Courtesy of ISUZU MOTOR CO.
Courtesy of ISUZU MOTOR CO.
Courtesy of ISUZU MOTOR CO.
Courtesy of ISUZU MOTOR CO.
Courtesy of ISUZU MOTOR CO.