Isuzu A-4JB1 - Page 103

ENGINE ASSEMBLY ( 3 )
1. Idler Gear Shaft
The idler gear shaft oil hole must be facing up.
2. Idler Gear “A”
1) Apply engine oil to the idler gear 1 and the
idler gear shaft 2 .
2) Position the idler gear setting marks “X” and
“Y” so that they are facing the front of the
engine.
1
2
3) Align the idler gear “X” setting mark with the
crankshaft timing gear 3 “X – X” setting mark.
4) Align the idler gear “Y” setting mark with the
camshaft timing gear 4 “Y – Y” setting mark.
5) Tighten the idler gear bolt to the specified
torque.
Idler Gear “A” Bolt Torque kgf·m(lb.ft/N·m)
1.4 – 2.4 (10.1 – 17.3/13.7 – 23.5)
“Y”
“X”
1
3
4
3. Idler Gear “B”
1) Apply engine oil to the idler gear and the idler
gear shaft.
2) Align the idler gear 5 “Z” setting mark with the
idler gear 1 “Z” setting mark.
Idler Gear “B” Bolt Torque kgf·m(lb.ft/N·m)
6.6 – 8.7 (48 – 63/66 – 85)
“Z”
1
5
100
Important Operations (Reassembly Steps-2)