Chapter 2 Part D
General engine overhaul procedures
23.1 To remove the old seal, support
the housing on a pair of wood blocks
and drive out the seal with a punch or
screwdriver and hammer - make sure
you don’t damage the seal bore
Oil seal case Oil separator
-.
23.2b Be sure to mount the oil
.-
separator with the oil hole positioned at
23.2a To install the new rear seal in the the bottom
housing, simply lay the housing on a
clean, flat workbench, lay a block of
wood on the seal and carefully tap it into
place with a hammer
I roan mounting
(.16)
1
dia. oil hole
a dial indicator as described in Section 13. The endplay should be correct if
the crankshaft thrust faces aren’t worn or damaged and new bearings
have been installed.
30 Refer to Section 23 and install the new rear main oil seal.
23 Rear main oil seal - installation
Refer to illustrations 23. I, 23.2a, 23.2b and 23.3
Note:
The crankshaft must be installedand the main bearing caps bolted
in place before the new seal and housing assembly can be bolted to the
block.
1 Remove the old seal from the housing with a hammer and punch by
driving it out from the back side
(see illustration).
Be sure to note how far
it’s recessed into the housing bore before removing it; the new seal will
have to be recessed an equal amount. Be very careful not to scratch or
otherwise damage the bore in the housing or oil leaks could develop.
2 Make sure the housing is clean, then apply a thin coat of engine oil to
the outer edge of the new seal. The seal must be pressed squarely into the
housing bore, so hammering it into place isn’t recommended. If you don’t
have access to a press, sandwich the housing and seal between two
smooth pieces ?f wood and press the seal into place with the jaws of a
23.3 Apply anaerobic
sealer onto the upper
portion of the retainer
large vise. If you don’t have a vise big enough, lay the housing on a work-
bench and drive the seal into place with a block of wood and hammer (see
illustration).
The pieces of wood must be thick enough to distribute the
force evenly around the entire circumference of the seal. Work slowly and
make sure the seal enters the bore squarely.
Note:
On 20L and2.4L en-
gines, after the oil seal has been installed press the oilseparator into the
housing making sure the oil hole is positioned
at
the bottom
(see illustra-
tion)
3 Lubricate the seal lips with moly-based grease or engine assembly
lube before you slip the seal/housing over the crankshaft and bolt it to the
block. Apply anaerobic sealer on the upper portion of the retainer (see
ll-
lustration)
before installing the housing.
4 Tighten the housing bolts a little at a time until they’re all snug.
24 Pistons and connecting rods - installation and rod
bearing oil clearance check
Refer to illustrafions 24.4, 24.5, 24.9a, 24.9b, 24. I I, 24.13. 24.14 and
24.17
1 Before installing the piston/connecting rod
assemblies,
the cylinder
wails must be perfectly clean, the top edge of each cylinder must be cham-
fered, and the crankshaft must be in place.
24.4 The tab on the bearing (arrow) must fit into the cap recess
so the bearing will seat properly
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