Diesel Technical Help Center Fuel Pumps Injectors Turbochargers

Caterpillar 3208, 3306, 3406 Procedures
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Caterpillar Diesel Fuel 3208, 3306,

3406 Pump Help

This section gives step by step instructions for many of the common procedures associated with Caterpillar® diesel engines

Diesel Fuel Pumps

Classification I
Complete Overhaul, Rebuild or Remanufacture
(Return In Like New Condition)

(A)	Complete disassembly of unit and component subassemblies.
(B)	Thorough cleaning and close inspection of all usable parts.
(C)	Reassembly of these parts to the unit, provided the parts meet with the manufacturer's requirements. Missing, worn or broken parts will be replaced.
(D)	All repairs will be done in accordance with the original equipment manufacturer's specification, recommendation and procedures.

Classification II
Necessary Minor Repairs

(A)	Repairs of defects to a sub-assembly and/or complete assembly, as designated by the customer or noted by the service shop after a visual inspection.
(B)	Test unit and sub-assembly according to manufacturer's recommendations and report finding to the customer.
(C)	Under warranty period, the repair station is only responsible for that portion of repair work which it was instructed to perform.

Classification III
Calibration or Test Only

(A)	External cleaning of complete assembly and testing of assembly according to manufacturer's recommendations
	(1)	If the test does not meet with requirements, the customer will be advised and permission will be requested to make further repairs, under either Classification I or II
	(2)	If the test does not meet with requirements, the unit will be returned to the customer for service, but the repair station WILL NOT be held responsible for the longevity of the unit since the internal mechanical parts were not visually inspected and the unit was not overhauled.

Gasoline Fuel Injectors

Why Pay for New Fuel Injectors When We Can Service Them for a Fraction of the Cost?
Fuel Injectors Ultrasonically Cleaned with the Lucas ASNU System Offer New Injector Performance

Fuel injectors are manufactured to last 150,000 miles, so electrical and mechanical failure is rare. However, over time harmful deposits can build up around the injector nozzle. Deposits can also build up inside
the injector, clogging the filter and reducing the amount of fuel being delivered. The end result is poor MPG.

How Can Your Clogged Fuel Injectors Be Fixed?
The simplest way to fix clogged fuel injectors is to replace them. This, however, is also the most expensive way. A better solution is to use the Lucas ASNU Fuel Injector Service System, which returns any clogged injector to full working order in 3 steps:

Turbochargers

Midwest Fuel Injection Stocks and Services a Large Variety of Turbos to Keep Your Engine's Performance and Power Up and Keep Smoke and Emissions Down

Holset HX50
FAQ - Reasons for Premature Failure

Three Reasons For Premature Failure:
1.	Lack of lubricant can cause high speed bearings to fail. Bearing failures can lead to instability in the way the wheel and shaft assembly rotates damaging seals and allowing the wheels to rub against the housing. If continued, this condition can lead to turbocharger failure.
2.	Foreign objects can damage the high speed turbine and compressor wheel blades, causing wheel imbalance and unstable rotation. This puts an additional load on bearings that leads to bearing failure and eventually turbo failure.
3.	Contaminated lubricants can score shaft journals and bearings, block oil passages and wear out seals, resulting heavy leakage. Continued operations under these conditions can result in bearing failure.

These reasons for turbo failure can be prevented with careful installation, proper operation, and a sound preventive maintenance program.