Chevrolet 10 Series 1970, Руководство по обслуживанию

Страница: 417 / 671

ENGINE-ELECTRICAL 6Y-25
PRIMARY
LEAD
F ig . 4 i — D is trib u to r Lead A rra ngem ents
the b rea k er le v e r spring. If the p ressu re is e x ­
c e s s iv e , it can be d ecreased by pinching the
spring ca refu lly.
T o in crease p ressu re, the
le v e r must be rem oved fro m the distribu tor so
the spring can be bent away fro m the le v e r.
A void e x c e s s iv e spring distortion.
9. Set point opening (.019" fo r new points).
10. R ein stall ro to r, position and lock distribu tor cap to
housing.
F ig . 5 i —Top V ie w o f D is trib u to r
11. Start engine and test dw ell and ignition tim ing.
Eight Cylinder Engine Distributor
1. The contact point set is replaced as one com plete
assem bly and only dw ell angle req u ires adjustment
a fte r replacem ent. B rea k er le v e r spring tension and
point alignm ent are fa cto ry set.
2„ R em ove the distribu tor cap by placing a screw d r iv e r
in the slot head o f the latch, p re s s down and turn 1/4
turn in eith er direction .
3. R em ove the two attaching screw s which hold the base
of the contact set assem bly in place.
4. R em ove the p rim a ry and condenser leads fro m their
nylon insulated connection (fig. 4i) in contact set.
5. R e v e rs e Steps 2, 3 and 4 to install new contact set.
CA U TIO N : Install the p rim a ry and condenser
leads as shown in F igu re 4i. Im proper in s ta lla ­
tion w ill cause lead in terferen ce between the
cap, weight base and b rea k er advance plate.
6. If car has 20,000 to 25,000 m iles (o r sooner if
desired ) the cam lu b rica tor wick (fig . 5i) should be
changed. Using long nosed p lie r s squeeze assem bly
together at base and lift out. Rem ove a ll old lu b ri­
cant from cam surface. Replace in same manner.
NOTE: End o f cam lubricant wick should be
adjusted to just touch cam lobes. O ver lu b ri­
cation o f cam resu ltin g in grea se on contact
points can be caused by cam lubrication wick
b earing too hard against cam surface. A c o r ­
re c tly adjusted cam lu b ricator wick w ill p rovid e
adequate lubrication fo r cam. Do not apply ad­
ditional g rea se to cam su rface.
7. Start engine and check point dw ell and ignition
tim ing.
F ig . 6 i — In a c c u ra te G au ge o f Rough Points
R O T O R
C A M
L U B R IC A T O R
R E P L A C E M E N T
C A U T IO N !
N E V E R O IL
C A M L U B R IC A T O R —
R E P L A C E W IC K
W H E N N E C E S S A R Y
A D J U S T S Q U A R E L Y
A N D JU S T
T O U C H I N G L O B E
O F C A M
L O C A T O R
(R O U N D )
C E N T R IF U G A L
A D V A N C E
M E C H A N IS M
L O C A T O R
(S Q U A R E )
C A M
L U B R IC A T O R
CHEVROLET TRUCK SERVICE MANUAL