Component Failure Analysis - Isuzu L Series Manual

VI. Component Failure Analysis
Fuel System
Nozzle Holder component failure
U
Description:
Broken coil on the holder spring directly
related to large amounts of carbon build –
up on the nozzle spring. Carbon build-up
can also be seen on the push rod. This
condition is directly related to combustion
gases passing through the nozzle holder
spring chamber. Problem can be avoided be
routine inspection of the nozzles.
Description:
Broken coil due to oxidation caused by
moisture or high sulfur content in the fuel.
Condition can be prevented through routine
inspection of the fuel and filter.
Description:
Sulfuric acid corrosion at the pintal caused
by high sulfur content in the fuel. This is a
result of water reacting with the sulfur to
form sulfuric acid.
L-Series Diesel 36