Additional Required Parts; Fabrication Of Oil Separator Tank; Carburetor - Mazda RX-7 Service Manual

ENGINE
4.
l g n i t o r a n d l e a d w i r i n g ,
i g n i t o r : 4 8 0 1 1 8 8 0 0
l e a d w i r i n g : 4 8 0 1 1 8 8 7 0
T h i s f u l l y t r a n s i s t o r i z e d i g n i t i o n
will provide a stable secondary
v o l t a g e a t h i g h e n g i n e s p e e d s .
T h e l e a d w i r i n g h a r n e s s i s s P e c i '
f i c a l l y i n t e n d e d f o r t h i s i g n i t i o n .
Alternator and alternator straP,
a l t e r n a t o r : 3 9 9 7 1 8
3 0 0
s t r a p : 4 8 0 1 1 8 3 6 1
A l t e r n a t o r p u l l e y p a r t n u m b e r :
0833-78-1 53A
T h e a l t e r n a t o r o u t p u t i s 3 5 a m P s ,
a n d i t s p u l l e y d i a m e t e r i s 7 5 m m .
Starter stay,4352 1B 401
spacer,
'1281 17 383
The starter stay reduces vibration
and prevents possible breakage
of the transmission case.
Note: When installing the staY, the
spacer must be inserted between
the stay and the starter motor.
Spark plug, 4352 18 600
The heat range of this Plug is 11.5,
w h i c h i s c o l d e r t h a n s t o c k .
Fuel pump, 4352 1B 250
T h i s f u e l p u m P h a s a n o u t P u t o f
100 liters/hour. Two of them are
n e e d e d t o s a t i s f Y t h e r a c i n g e n '
g i n e ' s m i n i m u m f u e l f l o w r e q u i r e -
ment of 180 liters/hour.
l l .
A d d i t i o n a l R e q u i r e d P a r t s .
These Parts must be acquired
f r o m o u t s i d e s o u r c e s .
1. Carburetor.
T h i s e n g i n e u s e s ' a W e b e r 4 8 l D A
o f t h e f o l l o w i n g s P e c i f i c a t i o n s :
2. Tachometer.
We recommend using a mechan-
i c a l t a c h o m e t e r .
Temperature gauges.
M i n i m u m r e q u i r e m e n t s i n c l u d e
water and oil temPerature gauges.
O i l p r e s s u r e g a u g e .
We recommend a mechanical
gauge of the Belden tube tYPe.
5 .
6 .
3 .
4.
7.
8 .
lll. Machining and Fabrication Opera-
t io n s a nd Pr o ce d ur e s
A. Fabrication of oil separator tank.
1 . U s e t h e s t o c k o i l f i l l e r P i P e .
2 . T h e o r i g i n a l f i l l e r p i p e i s t o o l o n g
and must have a 40 mm section
removed from the middle. Cut it,
r e w e l d a n d d r i l l h o l e s a s s h o w n i n
t h e i l l u s t r a t i o n .
3 . F a b r i c a t e t h e t a n k a s s h o w n , a n d
w e l d i t t o t h e f i l l e r P i P e .
4. After welding, check for anY Pos'
s i b l e o i l l e a k s .
Eore x Venturi (mm)
4 8 x 4 3
E m u l s i o n t u b e
F-8
M a i n i e t
fi230
M a i n a i r c o r r e c t o r . i e t
#1 30
l d l e j e t
#80
l d l e a i r c o r r e c t o r i e l
#120
Accef erator nozzle
#50
N e e d l e & s e a t
#300
Float level
21-23 mm from the
upper surface of the
float chamber.
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, , i
(F"y'
i''-.1
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