4BG1 Diesel Used Engine Blocks For Excavator EX120 - 5 8 - 97130 -
328 - 4
Specification
| Type: Engine Cylinder Block | Cylinder Block Travel: 125 |
| Application: Excavator | No. of cylinders: 4 |
| Condition: Original Used | Cylinder bore: 105 |
| Type: Direct injection | Model No: 4bg1 |
Description
Spray Cleaning System
ENGINE BLOCK SONIC CLEANING
Promar's second process in the cleaning of aluminum blocks is the
ultrasonic cleaning method, long known as the "benchmark" in
cleaning and engine restoration services. Hundreds of
specifications reference an ultrasonically cleaned part as the
ultimate target for cleanliness. Ultrasonic cavitation is able to
clean right down to the surface of a part and beyond. It is also
able to reach internal areas, which are not accessible by using
other cleaning means including spray and mechanical agitation. The
forceful nature of ultrasonic energy provides the physical "push"
required to break the mechanical and ionic bonds that hold very
small particles to surfaces. Once cleaned the block is sent for
pressure testing.
ENGINE BLOCK PRESSURE TESTING
Promar uses the Delta Pressure tester to double check for pin holes
after magnafluxing and dye testing are completed. Cracks and
defects not detected during the first process are found at this
time. This second process insures the integrity of all castings
used in Promar products.
ENGINE BLOCK PREPARATION
A complete visual inspection of the block is performed. Repairs
will be made to minor casting defects, removal of broken bolts are
performed as well as repair and tapping of threads. Gasket surface
repairs are performed to minimize stock removal. The next step of
engine block remanufacturing is align honing.
ENGINE BLOCK HONING
As the machine hones, it shows the profile of the bore graphically
as it continuously analyzes the bore and senses taper anywhere in
the cylinder - top, middle or bottom and automatically dwells or
short strokes as programmed, correcting the tight area. As engines
continue to get more complex, oil clearances and machining
tolerances continue to become even more critical. The only way to
keep up with evolving engine designs is to use every piece of
technology available to us. Make sure your engine block is machined
by the best machine available, you won't be disappointed.
Final assembly and completion of engine block remanufacturing is
not started until all blocks go through a final wash.
