![background image](http://html1.mh-extra.com/html/mack/e-tech-sb-210-034/e-tech-sb-210-034_service-manual_3224387163.webp)
REPAIR INSTRUCTIONS
Page 147
BUSHING INSTALLATION
1. Clean the surfaces of the bushing and the
bore. Dry both surfaces with compressed air.
2. Using a dark-colored felt-tip marker, mark
the block and bushing with a line to facilitate
correct alignment at installation. Refer to
Figure 138.
138
Figure 138 — Camshaft Bushing Installation
3. Position the replacement bushing (2) against
the side of the block at the No. 7 (rear)
bushing bore. Align the oil hole in the
bushing (1) with the oil passage (7) in the
block.
4. Using bushing remover/installer J 42377
(with J 21428-01 Cam Bushing Installer
Set), install the bushing.
Correct installation of each camshaft bushing is
very important. If a bushing is not properly
aligned with both its oil supply and oil feed
passages in the cylinder block, either the
camshaft bushing will fail or the components
lubricated by the bushing feed will fail from
inadequate lubrication.
5. Install the camshaft bushings in sequence,
starting at the back of the cylinder block with
No. 7 and finishing with No. 1.
6. After all the bushings are in place, measure
the ID of each to ensure that they are not
undersize because of burrs on the OD
caused by installation (Figure 139). Refer to
the Fits and Limits charts in the
SPECIFICATIONS section for the correct
bushing ID dimensions.
139
Figure 139 — Camshaft Bushing ID Check
1. Bushing Oil Hole
2. Bushing
3. Pilot Adapter (J 42377)
4. Bushing Remover/
Installer (J 21428-01 Kit)
5. Alignment Mark
6. Mounting Hole
7. Block Oil Passage
5_106_00.bk Page 147 Friday, August 4, 2000 11:17 AM
BDC for engine manuals and specs