Inspect all linkage for full travel from high
idle stop to low idle stop under all
conditions of operation. Make certain
operation of vehicle is not changing these
adjustments. Verify high idle.
Inspect override at wide open throttle. (See
NOTE: Throttle override is the
adjustment made at the throttle lever
which compensates for wear that
occurs in throttle linkage and for
override is not maintained, full
throttle and consequently, maximum
performance will not be available.
Measure transfer pump pressure .
Check for fuel inlet restriction or
Replace transfer pump if necessary.
Measure air cleaner restriction.
Check injection pump timing and correct
injection pump on engine.
400-SERIES with UTDS Model 100 Pump
visual check/Flow Time and Dynamic check
CREATIVE TOOL TACH/ TIME KIT w/14
mm split-nut transducer or Sun TACH/TIME
KIT (PLT-301 or SE-2528)
400-SERIES with Robert bosch MW Pump
- visual pointer inspection.
9.0 LITER - visual pointer inspection/ Flow
6.9 LITER visual check/Dynamic check
using SE-4142 Kent-Moore TACH N' TIME
TM , Creative Tool SE-2783 or Design
Technology Tech-Time Model 3354.
Loss of one cylinder.
Check for plugged injection line.
Check nozzle operation.
400 SERIES (Turbocharged Engines only)
Pressurize intake system and inspect for
leaks at line between intake manifold or
crossover and injection pump aneroid. Air
leakage may occur at line connectors or
pump or manifold. During engine operation
leaks at the connectors can cause manifold
pressure to be reduced at the aneroid
which allows injection pump to operate in
"cut back" or reduced power level.
However, slight manifold pressure leakage
is allowable on pressure side of the intake
system, such as at the turbocharger
compressor housing, as long as manifold
Test aneroid diaphragm by applying (15 psi
max.) air pressure, using D-100 Test Kit,
for 30 seconds. If leakage occurs, replace
diaphragm. Low power and low manifold
pressure will result if diaphragm leaks
because injection pump will stay in "cut
Printed in United States of America