Improvement of Isuzu C240 diesel engine instructional trainer / by Raven F. Eyaya, John Coryne David Laitan, Mark Dominic B. Marquez and Paul Rheo C. Mauro.

Design Project (Bachelor of Industrial Technology Major in Automotive Technology) Cavite State University.

Includes bibliographical references.

College of Engineering and Information Technology (CEIT), Department of Industrial Engineering and Technology

EYAYA, RAVEN F., LAITAN, JOHN CORYNE DAVID, MARQUEZ, MARK DOMENIC B.,
and MAURO, PAUL RHEO C. Improvement of Isuzu C240 Diesel Engine Instructional
Trainer. Undergraduate Design Project. Bachelor of Industrial Technology major in
Automotive Technology. Cavite State University, Indang, Cavite. June 2019. Adviser: Mr.
Danielito R. Escano
Diesel engine is any internal-combustion engine in which air is compressed to a
sufficiently high temperature to ignite diesel fuel injected into the cylinder, where combustion
and expansion actuate a piston. It converts the chemical energy stored in the fuel into
mechanical energy, which can be used to power freight trucks, large tractors, locomotives, and

marine vessels. A limited number of automobiles also are diesel-powered, as are some electric-
power generator sets. The diesel engine gains its energy by burning fuel injected or sprayed

into the compressed, hot air charge within the cylinder. The air must be heated to a temperature
greater than the temperature at which the injected fuel can ignite. Fuel sprayed into air that has
a temperature higher than the "auto-ignition" temperature of the fuel spontaneously reacts with
the oxygen in the air and burns.
However, at engine start-up, supplemental heating of the cylinders is sometimes
employed, since the temperature of the air within the cylinders is determined by both the
engine's compression ratio and its current operating temperature. The general objective of the
study is to enable learners to have idea and learn more about how the diesel engine operates
mechanically compare to the EFI diesel engines nowadays. The construction, improvement and
development of the existing 0240 diesel engine trainer will form part on the enhancement of
skills of the learners, particularly on diesel engines. The particular engine can be used by the
incoming students to practice their skills before taking Automotive Servicing NC l because diesel
engine set up timing gear marks and tune-up servicing is one of the Core Competencies given
by TESDA. The original frame measured 54"x 31"x 24". It is made up of 3"x 3" angular bar
reinforced with a base holder on the four corners of the frame and 2" G.I pipe with metal skid
wheels to make the trainer mobile in the Automotive Section working area.
The existing trainer measured 67"x 31"x 24" so that the existing trainer is modified into
the one original frame measurement. There is no base frame for the battery, so the trainer has
additional angular bars for the battery and also for the new acrylic glass. This was welded and
painted with acrylic blue for similarity with other trainer's inside the shop. Repairs were carried to
enhance its performance and design. The engine was overhauled and parts such as valve seal,
piston ring, starter, gaskets, oil seals, oil pan gasket, oil pump, and water pump were replaced
to fully satisfy the engine performance. The design project improved the physical appearance of
the Isuzu C240 diesel engine trainer, and at the same time, installed advanced features of fuel
and electrical system which was considered to be have a big contribution on the addition diesel
engine trainers. The added features of fuel system clearly identified flow of the diesel fuel, and
the electrical system was systematically arranged to lessen the hardship of the learners.
The improved project proved to be very useful and effective for the Automotive students
providing knowledge about diesel engine principles and components. The improvement of the
trainer will help the instructors and students with the smooth preventive maintenance,
troubleshooting and different minor overhauling procedures. It will open new opportunities for
students in enhancing their skills in diesel engine to be conducted during actual hands-on
activities. The students and faculty evaluators gave a high and even positive degree of level.
This showed a significant result and that the design project trainer was acceptable.

Submitted to the University Library 08/22/2019 DP-719