Chevrolet CAMARO 1979 Service Manual page 687

ENGINE ELECTRICAL 6D-29
fairly rare instances, this type of break may result f.om the
plug operating too 'hot", encountered
in sustained periods
of high-speed operation or under extremely heavy loâds.
When regapping a spark plug, to avoid lower insulator
breâkage, âlways make the gap adjustment by bending the
ground (side) electrode. Spark plugs with broken insulators
should alwâys be rcplâc€d.
E N G I N E C R A N K S , B U T W I L f N O T S ' A Ê T
N O T E : l F A T A C H O M E T E R l S C O N N E C T E O T O T H E T A C H O M E T E R T E R M I N A ! , D I S C O N N E C T l I B Ê F O R E
P R O C E Ê O I N G W I T I i T H E T E S T .
N O T E : V I E W S A A E I N P A R T 2 ,
F i c 6 0 - 5 0 a h E l D i a g n ô s i s
1. CHECK SPARK AT PLUG WITH ST.I25
! ' \ , H I L E C R A N K I N G I I F N O S P A R K O N
O N E W I R E , C H E C K A S E C O N D I I I I R E ) ,
C H E C ( F U E ! . S P A R K P L U G S . E T C . 2. CHECK VOLTAGE AT OISTRIBUTOR'BAT'
T E R M I N A L W H I L E C B A N K I N G ,
U N D E B 7 V O L T S
3. WITH IGNITION "ON", CHECK
"TACH" TERMINAL VOLTAGE.
A E P A I F P B I M A R Y C I Ê C U I T
TO rGNrlrON SWrrCÉ.
UNDÉÊ I VOIT
I TO t0 VOLTS
Ê E P ! A C E I G N I T I O N 4 . C É E C ( F O Â S P A Â X A T C O t L
OUTPUT TENMINA! WITTI
S T , 1 2 5 W H I L E C R A N K I N G
BEPLACE MOOULE AND
CHECK FOR SPABK FROM
cor! as tN sT€P 6.
W A T E R , C R A N K , E I C .
SYSTEM
o (
cott. tT Too
FROM MODULE, CHECK TACH.
I € R M . V O L T A G E W I T | | ' I G N "
,,oN". ITAÎCH VOLTMETER AS
iEST LIGHl IS MOMENTAÂILY
CONNECTED FROM BA1. TO
M O D U L E ' G " ( S M A L L I T E R M .
{VIÉW B) {NOT MORE THAN
5 SECONDS),
N O O R O P I N V O ! Ï A G Ë
ANO FOÊ OPEN IN IIJIâES
D I S T R I B U T O R . I F O K ,
sTr25 AS ÎES1 lrcHr rS REMOVED
F R O M M O D U I Ê " G " I € R M I N A L ,
I F M O D I , T E ' E S I E Ê I S
M O O u t E .
BEPLACE PICK.I',P COII.
7 , C H E C X t G N , C O t L G A O U N D C T A C U T T _
I F O K , Â Ë P L A C E I G N . C O I L A N D
Ê E P E A I S l E P 6 .
O Â I G I N A L C O I L A N O R E P I A C E I I O O U L E .
C I ' I E C K I G N . C O I L G R O U N D .
I ' O K , R E P L A C E I G N . C O I L ,