ENGINE
3TNV88F Service Manual
6-35
Crankshaft and Camshaft Components
■
Measuring idler gear-to-camshaft gear
backlash
1. Drive a small wooden wedge between the
crankshaft gear and idler gear to prevent the
idler gear from rotating.
2. Install the dial indicator to read the camshaft
gear backlash. Rotate the camshaft drive gear
against the idler gear to measure the backlash.
Record the measurement.
3. Check the idler gear-to-fuel injection pump
drive gear backlash in the same manner as the
camshaft drive gear. Record the measurement.
■
Removal of timing gears
1. Remove the bolts from the idler gear shaft
. Remove the idler gear shaft,
idler gear
(Figure 6-45, (2))
and bushing
Figure 6-45
2. Do not remove the crankshaft gear unless it is
damaged and requires replacement. If the gear
must be removed, remove it using a gear puller.
3. Removal of the camshaft gear requires the
camshaft be removed and placed in a press. Do
not remove the camshaft gear unless it or the
camshaft is damaged and requires
replacement.
■
Removal of oil pan
1. Invert the engine (oil pan up) on the engine
stand.
2. Remove the oil pan
(Figure 6-46, (1))
.
Figure 6-46
and O-ring
(Figure 6-47, (2))
.
Figure 6-47
K0001728A
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3
2
1
046357-00X00
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046358-00X00
3TNV88F_SVM_A4.book 35 ページ 2012年7月26日 木曜日 午後6時4分