REPAIR INSTRUCTIONS, PART 1
Page 307
Camshaft Installation
[213 CH]
Before installing a camshaft in any engine,
ensure that cam is clean, undamaged and
well-lubricated with clean engine oil. Refer to
“Auxiliary Shaft and Camshaft Bench
Procedures” in the REPAIR INSTRUCTIONS
section.
When installing the camshaft, it is easier to
remove the camshaft guide from the camshaft
(after installation) when the idler gear is removed
and alignment of the timing marks is not being
attempted at the same time. The final step in the
process is to reinstall the idler gear.
Use camshaft guide tool J 41682 to ease
installation of the camshaft and avoid damage to
the camshaft bushings.
Install the camshaft as follows:
1. Apply a generous coating of clean engine oil
to the camshaft bushings.
2. Clean the camshaft with a suitable solvent.
3. Install the camshaft installation guide over
the large flat of the injector lobe, between
the last two cam journals (journals at the
back of shaft). Refer to Figure 350.
350
Figure 350 — Camshaft Installation Guide
4. Apply clean engine oil to the installation
guide.
The camshaft is heavy, weighing approximately
90 pounds with the gear. The installation guide
allows the camshaft to slide from one cam
bushing to the next without allowing the cam to
drop when one journal clears the bushing bore.
5. With the engine still rotated 180 degrees
(crankcase facing up, head deck facing
down), position the camshaft in the block
with the cam installation guide facing down
toward the floor as shown in Figure 351.
6. Slide the cam all the way into the block.
351
Figure 351 — Camshaft Installation
7. After the camshaft is fully installed, install
the thrust washer screws and tighten to
specification, 15 lb-ft (20 N폷m).
8. Rotate the crankshaft and camshaft to
facilitate removal of the installation guide.
The camshaft must be rotated so that the
installation guide faces up toward the
cylinder block pan rail. The crankshaft must
be rotated so the No. 6 connecting rod
journal faces down toward the cylinder block
top deck (piston at TDC).
9. Remove the installation guide tool J 41682.
5-111.bk Page 307 Monday, July 10, 2006 2:26 PM
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