Installing Front Cover And Eccentric Shaft Pulley - Mazda 1975 Rotary Pickup Workshop Manual

1
6. Engage the oil pump drive chain with the driven
sprocket and drive sprocket, and then slide the sprock-
ets with chain onto the eccentric shaft and oil pump
shaft simultaneously aligning the keyway of the driven
gear sprocket with the key on the oil pump shaft.
Fit the key onto the eccentric shaft.
7. Slide the distributor drive gear onto the eccentric
shaft with
"F" mark on the gear faced the front of
engine.
8. Install the eccentric shaft pulley onto the shaft
aligning the keyway of the pulley with the key.
9. Tighten the pulley bolt with washer to 7.5 - 9.5
m'kg (54 - 69 ft-lb).
10. Turn the engine on the work stand so that the
top of the engine is uP.
Fig. 1-80
Eccentric shaft end PlaY
11. Apply a dial indicator onto the flywheel as shown
in Fig. l-81.
Move the flywheel fore and aft, and
note the reading of the indicator. The standard end
play is 0.04 - 0.07 mm (0.0016 - 0.0028 inl.
If the end play is more than 0.09 mm (0.0035 in),
adjust it by grinding the spacer on _ a surface plate
using an emery paper or replace the spacer. And
then recheck the end play in the same manner as
above.
Note :
(1) If the end play is below the specified amount,
the spacer thickness is too small. If the end play is
above the specified amount, the spacer thickness is
1 1 1
too big.
(2) The spacers are available in the following thick-
nesses :
Fig. 1-82 Adjusting spacer
12. If the end play is 0.M -
0.09 mm (0.0016 -
0.0035 in), proceed as follows to install the front cover.
1-C-12.
Installing Front Cover and Eccentric Shaft
Pulley
l. Turn the engine on the work stand so that the
front of the engine is uP.
2. Remove the eccentric shaft pulley.
3. Tighten the oil pump driven sprocket nut and
bend the tab of the lock washer.
4. Place the chain adjuster in position and tighten
the attaching nuts.
5. Place a new
660" ring on the oil passage of the
front housing.
6. Place the gasket and front cover on the front
housing, and tighten the attaching bolts.
7. Appiy engine lubricant onto the oil seal in the
front cover.
8. Install the eccentric shaft pulley onto the shaft
and tighten the pulley bolt with washer to 7 -5 - 9.5
m-kg (54 - 69 ft-lb).
I
It
:
--f
q
I
q
g
Identification Mark
Thickness
X
Y
v
Z
8.08 t 0.01 mm (0.3181 + 0.0004 in)
8.M + 0.01 mm (0.3165 10.0004 in)
8.02 + 0.01 mm (0.3158 t 0.0004 in)
8.00 + 0.01 mm (0.3150 t 0.0004 in)
Fig. 1-81
Checking end PlaY
Fig. 1-83
Placing
"O"
ring