PS Magazine - MAY 1973
PS, The Preventative Maintenance Monthly
1973 SERIES, ISSUE 246
MAY 1973
: I
I
l
1±
,I
.²
i
When a gAsoline engine scarEs co miss
at HiG speed, espeCiAlly After
a
Tune-up,
it Can
be
frustrAting. ±nd tHe most lik
el
y
²Ulprit is tHe DisTributor's ContACt spring
tension or tHe Coil³
Most tUne´up HotsHots will test tHe
sPArk plugs, CABles, ConneCtions, CHAnge
poinTSµ ConD¶NseR,
anD Co·pR¶s¸ion¹
ºHey skip testing tHe spring tension anD
Coil »CaUse tHey¼re least sUspeCt³ ½ut
jUst aBoUt eveRy ti·e tHey¾re not test¶d,
tRoUBle Bre¿sÀ
±ny ti·e YoU take off tHe distRiBUcor
Cov¶R anD ¿oRK on tHe ignition points,
nail tH¶ joB Do¿n By making tHese tesTS:
64
1.
After you've
Ad
just
ed
th
e p
oint
s,
tUrN
the engine-± littlE ±t
A
time-with the
starter with the ignitioN
OFF± T
u
r
n
until
tHe
discribuCor br²ak²r ³±m ResTs
with the pinTs ³losed.
3²
´oW PµlL on tHe s³¶Le untI· tHe ¸oInts
Jµst oPen¹ ºHe s³¶Le sHouLD re±d ¶»y¼
WHere be½ween
³7
¶»D 21 oµn³es¹
SPR´NG
tENS´oN
tEStER
2¾
¿itH tHe s¸ring tension cesÀceÁ,
Fsn
µµ¶5-··9-¶750,
HooK the s³¶le on tHe
bÁe±KeÁ LeveÁ ±s ³Lose co tHe ¸oi»ts ¶s
¸ossibLe¾
¸f
it Doesn't, ¶DJust tHe tension by
be»dIng the s¸Áing oÁ by Positio»ing
the s¸ÁI»g sLot µ»ti· you get tHe ÁigHt
tensio»¹ ¿H¶t You Do DePenDs o ÃÄe
tYPe you've gotÅ
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