PS Magazine - JANUARY 1987
PS, The Preventative Maintenance Monthly
ISSUE 410
JANUARY 1987
-
·
.±-:;²
.1±
SometiMes It can b a reAl chAL±enge, mechs, to so±ve the mystery of a s±ow ±eak.
Just when you thInk It's FE, the tIre shows up In your shop, ²at agaIn.
³indIng a s±ow ±eak takes Sher±ock Ho±mes-tyP detectIve work and patience,
Because ±ots of thIngs can go Bad.
´
³'rinstance, the va±ve core Is ±oose or he±d oPn By dIRt µµ¶ or the va±ve st
:
m
Is cuT ·¶¶ or the Bead's not sea±eD tight±y against the
r
.µ
.
or the tuBe has a p¸n¹
ho±e or¶ ¶µ.
50
JAN 87
HeRe aRe some tips foR finding that slow leak:
•
ºe sure there's a cap on the va±ve stem. »t's a secoNd aIrtIght s¼l, protects
the stem's ½reads and prevents dIrt and water ¾om gettI¿g I¿to the va±ve core.
HeRe a² available caps and whe² to use them:
Cap TyPe
Where used
³lAin
RUbbE´µcovE¶ED
vAlvE StEmS
·c´EwD¶ivE´
MEtAl o¶ ¶UbbE¶¸
covE¶E¹ StEºS
³lAS»ic
FligHt¼linE
vEHiclES
•
C±eÀn dIÁ out of the va±ve By ±ettÂng
a ±itt±e air out of the tire.
•
Ãest the va±ve. ÄaB soapy waterÅ
or spItÆon the oPnIngµ »f it BuBB±es,
tighten ½e core wIth the va±ve core
remover, ÇSÇ
³´2µ-¶-3µ·¸3·µ9¹
»t's
I
your Çoµ
L
CoÈon shop set¶ Or use
a screwdRIver va±ve cap. »f a tIght core
stI±± ±eAks, rep±ace it and test agaIn¶
•
On tuBe±ess tIres, watch Ér ±eÀks
wherÊ the valve sËm gÌs I¿to the whͱ.
»f you Înd a ±eaker, Break the tIre down
and rep±ace the stemÏ Stems are ±Isted In
L-±²³´
N½N 260¾
¿¿ÀÁ5ÂÀ934
¿¿ÃÄ¿Å355¿
¿1ÃÆ8ÇÁ¿Á9
·I
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