Subaru 1600 Service Manual page 81

23) Invert engine.
24) Flywheel housing.
25) Spark plugs.
26) Valve rocker covers and gaskets.
27) After loosening valve rocker lock
nuts and adjusting screws for other
than hydraulic valve lifters, remove
the valve rocker assemblies and valve
push rods.
NOTE:
a. Never loosen valve rocker lock nuts
and adjusting screws for hydraulic
valve lifters.
b. If the push rods are to be reused,
keep them in order, so that they are
installed in the original positions.
28) Cylinder head attaching nuts.
NOTE:
Loosen nuts according to the sequence
below.
Fig.
3-71
Loosening sequence of
cylinder head nuts
29) Cylinder heads and cylinder head
gaskets.
30) Remove bolt and nut retaining oil
strainer stay.
If necessary, drive out oil strainer
together with stay as a unit.
NOTE:
a. Use a chisel when removing the oil
strainer.
b. Never attempt to remove the strain·
er unless
it
is really necessary.
31) Piston pin circlip on the rear side
of each #3 and #4 piston;
Set piston to its bottom dead center
by turning crankshaft and insert long
nose pliers through the rear service
hole to reach circlip.
NOTE:
To turn the crankshaft with a wrench,
install the crankshaft pulley bolt on
the crankshaft front end.
ENGINE
32) Piston pins for #3 and #4 pistons,
using Piston Pin Remover (3990943 10)
inserted through the rear service hole.
,,; 1
1 Piston Pin Remover
(399094310)
2
Piston pin
Fig. 3·72 Removing piston pin
A5·276
33) Crankcase plugs from crankcase
with an Allen wrench 14 mm (0.55 in)
wide across flats.
Use this shape of wranch
Fig.
3·73
Removing crankcase plug
34) Piston pin circlips and piston pins
for # I and #2 pistons in the same way
as before, but use the front service
holes (crankcase plug holes) this time.
35) Straighten lockwashers for cam·
shaft attaching bolts, working through
the camshaft gear holes, and remove
bolts.
36) Tilt crankcase, and take out
hydraulic valve lifters.
NOTE:
Keep them in order so that they are
not mixed up.
37) Separate crankcase by removing
bolts and nuts with # 1 and #3 cylin.
ders facing upward.
3-44
NOTE:
a.
Use Valve Lifter Clips (899804100)
to prevent the lifters (other than
hydraulic valve lifter) in the upper
crankcase from dropping off.
b. Before separating the crankcase,
pull the camshaft toward the rear
so
that is does not interfere with
the crankcase.
c. Also remove the crankcase hanger
(F)
and stiffener
(4WD).
A5·279
Fig.
3·74
Pulling camshaft
38) Oil seal at the front of crankcase,
O-ring and back-up ring.
39) Oil seal at the front of crankcase,
O-ring and back·up ring.
40) Crankshaft together with connect-
ing rods, distributor gear and crank-
shaft gear as a unit.
41) Camshaft together with camshaft
gear and camshaft plate.
42) Solid valve lifters and keep them
in order, so that they can be rein-
stalled into their original holes.
43) Pistons from crankcase.
NOTE:
a. Keep the pistons and piston pins
together for each cylinder so that
they are not mixed up.
b. Make marks on the pistons so as
not to change their installed posi·
tions.
44) Crankshaft bearings.
NO'rE:
If the bearings are to be used again, do
not mix them up.
45) Oil pressure switch (Vehicle with·
out pressure gauge) or plug (Vehicle
with pressure gauge).
46) Engine Stands (399814300 x 2)
from the crankcase halves.