Case ISM - Compression Test (*)

Engine-Engineandcrankcase
Engine-Compressiontest
N4LDI-TA-45SL
N4LDI-TA-50SL
Compressiontestisperformedthroughtheglowplugports.Thetestadaptertool(1),isequippedwithquickcoupler
endsforeasyinstallationofthehoseandgauge.
1.Removethetwopinconnector(1)fromthefuelmeter-
ingunitlocatedonthehighpressurepump.
NHIL13ENG0030AA1
2.Removetheglowplugelectricalwireandwireconnec-
torfromtopoftheglowplugs.RefertoColdstartaid
-Remove—Glowplug(55.202).
3.Removealloftheglowplugs.
SECT10C01PG17_12
NOTE:Besurealltheglowplugsareremovedbeforestartingthecompressiontests.
4.InstalltheadapterToolNo.FNH00120,hoseand
gaugeassemblyOEM1074(2),ineachportandcrank
theengineuntilpressurestabilizes.Thegaugeshould
read2944.1kPa(427psi)plusorminus344.7kPa
(50psi).
SECT10C01PG17_23
NOTE:Itmaybenecessarytoremovesomeinjectorfuellinestoinstalltheadaptertool.
NOTE:Thereshouldnotbemorethan344.7kPa(50psi)variationbetweenthecylinders.
5.Installtheglowplugsandelectricalconnections.Refer
toColdstartaid-Install—Glowplug(55.202).
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