Moxy MT 26 - External Oil Leakage; External Fuel Leakage

SHOP MANUAL MT26-31 - 06.2005
Engine
Tier-3 710655-
Ch 1 page 166
External oil leakage
Effect Cause Troubleshooting Action
Crankcase pressure
too high
Check “blow-by” in crankcase
Correct value for new engine: 0 - +10 mm wc
(flow rate 60 - 100 l/min.)
Closed crankcase ventilation: -50 - +20 mm wc
Leakage in manifold
joint
Leaky crankshaft seal
Leakage at liner seal
via overflow hole in
cylinder block
Defective cylinder head
gasket
Low load
External fuel leakage
Effect Cause Troubleshooting Action
Damaged injector and
injection pump connec-
tions/gaskets
Defective pulsation
damper
Blocked overflow valve
Leakage at high
engine speed and low
power output