Mazda RX-7 - Assembly Operations

Figure 27
(2)
Measuring
run-out.
This measurement will require
V-blocks,
a dial
indicator
and
stand and a flat surface. Mea-
sure as shown
in
Figure 28.
The
allowable
limit for run-out
is
0.'l
mm. lf that limit is
ex-
ceeded. the shaft
must
be
re-
placed.
V. Assembly Operations.
A. Engine assembly.
The
assembly
procedure
for the
race engine
is,
for all
practical
purposes,
the same as for lhe
stock engine.
However,
remem-
ber
to
be aware of any unique
pro-
cedures
required
as a
result of
different oarts than
the
stock
ver-
sion.
B. Points
to
remember:
(1)
Use
engine"'oil on all
moving
parts
and surfaces
during
as-
sembly
to
avoid
metal-to-metal
contact.
(2)
Use
new
gaskets,
O-rings
and
lock
washers
with each re-
(3)
Use two oil
pan
gaskets.
One
goes
on the upper side of
the
baffle
plate,
the other on
the
lower
side.
Tightening
torques, in kg-m.
Vl.
Checks and Adjustments
A. Fuelsystem.
1. Carburetor specif
ications.
(1)
(2)
Due
to its
effect
on engine
per-
formance, the
fuel level
should
be checked regularly.
Adjustment
procedure.
The
fuel level
should be
check-
ed while the engine
is idling-
Attach a section of clear neo-
prene
tubing to the
drain
plug
hole,
and
read the level with
a
scale
as shown
in
Figure 29.
Figure
29
The
allowable
range for
the
"A"
dimension
is
21-23
mm.
lf adjustment
is required,
eith-
er bend the float lever arm or
change the number of shims
on the
needle valve nipple.
i,
I
I
ITEM TORQUE
Tension bolts
3.5
Drive
pulley
10-12
Lockn ut
(centerwei
ght)
40-50
Flywheel
3.7-5.5
Front cover 1.6-2.3
Stationary
gear
1.6-2.3
Oilpan 0.7-1.0
Water
pump
1.6-2.3
Water
pump pulley
0.7-1.0
Pressure
regulator
3-4
Spark
plug
1.2-1.8
lntake
manifold
1.6-2.3
Exhaust
manifold
4.4.5.9
|
Pressure
olate
1.8-2.7
Figure 28
ENGINE
Clear
neoprene
tubing