Servicing Lubricating System

8. Loosen oil filter with an oil filter wrench
(fig. 3-5). Unscrew filter by hand and
place in catch pan to drain.

Fig. 3-5

9. Clean oil filter mounting surface with a shop towel.

10. Rub a few drops of new engine oil onto rubber gasket of oil filter.

11. Screw filter on by hand. After rubber gasket contacts mounting surface, turn filter an
additional ¾ to 1 full turn by hand.

12. Lower vehicle and add correct amount of new engine oil. Start engine and watch oil
pressure warning light or gauge until normal pressure is indicated. Check for leaks
around filter and drain plug. Shut off engine.

13. Wait five minutes, then check engine oil dipstick for proper oil level.

Job Completion Report

1. What size wrench was necessary to loosen the drain plug?

2. List filter make and code number for this vehicle:

3. What quantity of oil is necessary for an oil change with and without a filter change for this

vehicle? With filter Without filter

4. What problems, if any, were encountered during this procedure?

INSTRUCTOR SIGNOFF DATE

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SELF-CHECK LO3-3

Explain why the oil filter should be changed at every oil change.

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ANSWER KEY LO3-3

In most engines, changing the engine oil does not drain the oil filter. Up to a quart of dirty
oil may remain in the filter. As soon as the engine starts, clean oil is pumped to the filter, where
it mixes with the dirty oil.

Oil filters should be changed at every oil change to ensure maximum engine life and
service.

Code No. Servicing Lubricating System Date Developed Date Revised Page #
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PERFORMANCE TEST

Learner’s Name Date:

Competency: Service Engine Mechanical System Test Attempt 3rd
1st 2nd

Directions: Level OVERALL EVALUATION
Achieved PERFORMANCE LEVELS
Call Instructor. Ask
instructor to assess your 4 – Can perform these skills without supervision and with
performance criteria tasks initiative adaptability to problem situations.
and performance criteria
below. 3 – Can perform this skill satisfactorily without assistance or
supervision.
You will be rated based
on the overall evaluation 2 – Can perform satisfactorily but requires some assistance
and / or supervision.

1 – Can perform parts of his skill satisfactorily, but requires
considerable assistance and/or supervision.

Instructor will initial level achieved

PERFORMANCE STANDARDS Yes No N/A
For acceptable achievement, all items should receive a “Yes” or

“N/A” response.

1. Component/parts of the lubricating system identified

2. Function of each part explained

3. Oil cycle in the lubricating system discussed

4. Different types and classification of engine oil identified

5. Application/uses of engine oil explained

6. Appropriate tools are selected and used

7. Proper procedure is followed in overhauling oil pump, replacing
oil filter, and changing oil.

8. Personal safety during the performance of the job is observed

Code No. Servicing Lubricating System Date Developed Date Revised Page #
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DEFINITION OF TERMS

Bypass valve – a valve used to redirect unfiltered oil through a clogged full-flow oil filter.
Corrosion inhibitor – an oil additive that helps to prevent the formation of acids.
Detergent – dispersant – a chemical additive that keeps particles of carbon and other
contaminants suspended in lubricating oil.
Dry friction – friction that occurs when unlubricated objects come in direct contact, such as
metal rubbing against metal.
Foam inhibitor – an additive that reduces the formation of foam in oil.
Friction – the resistance between two rubbing or sliding materials.
Full – flow oil filtering system – a filtering system in which all of the oil normally passes
through the filter before it can flow through the galleries and to the moving parts of the engine.
Grease points – areas where grease or oil is added when lubricating.
Greasy friction – friction that occurs when a thin film of grease or oil is present between
touching surfaces.
Lubricant – slippery materials, such as oil and grease that reduce friction.
Lubrication – the action of providing lubricant, usually oil or greases to reduce friction between
parts, thus reducing heat and wear.
Lubricating system – a number of parts, components, and passages, which function to keep
engine parts lubricated.
Multi – viscosity oil – chemically modified oil that has been tested for viscosity at cold and hot
temperatures.
Oil filter – a filtering element enclosed in a metal container, used to remove foreign particles
from engine oil before it flows to moving engine parts.
Oil galleries – small passageways that carry oil within the engine.
Oil pan – a storage area for oil that is bolted to the bottom of the engine block.
Oil pump – a part of the lubrication system that moves oil, under pressure, to keep engine parts
lubricated. Also a pump that pressurizes the hydraulic system in an automatic transmission.
Oil spurt hole – a small hole drilled in a connecting rod big end or bearing cap for external
lubrication purposes.
Oil – a liquid lubricant usually made from crude oil and used for lubrication between moving
parts. In a diesel engine, oil is used for fuel.
Oil clearance – the space between the bearing and the shaft rotating within it.
Oil cooler – a small radiator like heat exchanger that lowers the temperature of oil flowing
through it.

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Oil level indicator – a dipstick, or an electronic oil – level sensor in the oil pan that turns on a
Check Oil Level light in the instrument panel if the oil level is low.
Oil – pressure indicator – an indicator in the instrument panel that warns the driver if the
engine oil pressure in too low. May be an indicator light, an electric analog gauge, an electronic
bar graph or similar display, or a digital number display of the pressure.
Oxidation – the chemical combination of a substance with oxygen to produce an oxygen –
containing compound. Also, the chemical breakdown of a substance or compound caused by its
combination with oxygen.
Oxidation inhibitor – an oil additive that helps to prevent oil oxidation.
Pressure – the amount of force pushing on a surface.
Pressure relief valve – a valve that opens under pressure to allow excessive pressure to
escape.
SAE – Society of Automotive Engineers
Scuffing – damage caused by greasy friction between parts.
Service Manual – a book that explains how to service and repair an automobile.
Sludge – a thick, soft, tarry substance formed in oil by water vapor and contaminant particles.
Viscosity – the resistance to flow exhibited by a liquid. A thick oil has greater viscosity than a
thin oil.
Viscosity index improver – a chemical additive that helps oil to maintain an adequately thick
lubricating film as the oil is heated.
Viscous friction – friction between layers of liquid, such as oil.
Water sludge – a soft, light – colored foamy substance formed from water whipped into engine
oil by the action of the crankshaft.

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Learner’s Diary

DIARY NOTES

Record important dates, jobs undertaken and other workplace events that will
assist you in providing further details to your assessor.

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RECORD OF ACHIEVEMENT

Module: Servicing Lubricating System

LO1 : Explain oil cycle within the engine

Assessment Criteria:

1. Component/parts of the lubricating system identified.
2. Function of each part explained.
3. Oil cycle in the lubricating system discussed.

Comments:

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Learner has satisfied the above performance criteria.

Learner’s signature ……………………………………….

Trainer’s signature ……………………………………….

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Code No. Servicing Lubricating System Date Developed Date Revised Page #
Nov. 28, 2003 April 28, 2005
ALT723309 54

RECORD OF ACHIEVEMENT

Module: Servicing Lubricating System

LO2: Identify type, classification and application of engine oil

Assessment Criteria:

1. Different types and classification of engine oil identified.
2. Application / uses of engine oil explained.

Comments:

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Learner has satisfied the above performance criteria.

Learner’s signature ……………………………………….

Trainer’s signature ……………………………………….

Date ……………………………………………………….

Code No. Servicing Lubricating System Date Developed Date Revised Page #
Nov. 28, 2003 April 28, 2005
ALT723309 55

RECORD OF ACHIEVEMENT

Module: Servicing Lubricating System

LO3: Overhaul oil pump, replace oil filter, and change oil.

Assessment Criteria:

Appropriate job order for vehicle obtained and completed.
1. Appropriate tools are selected and used.
2. Proper procedure is followed in overhauling oil pump, replacing oil filter, and
changing oil.
3. Personal safety during the performance of the job is observed.

Comments:

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Learner has satisfied the above performance criteria.

Learner’s signature ……………………………………….

Trainer’s signature ……………………………………….

Date ……………………………………………………….

Code No. Servicing Lubricating System Date Developed Date Revised Page #
Nov. 28, 2003 April 28, 2005
ALT723309 56

Acknowledgement

Copyright TESDA
Centex: General Santos National School of Arts and Trades (GSNSAT)
Tiongson Street, Lagao, General Santos City

First Published OCTOBER 2003

This draft was prepared at the Competency – Based Learning Materials Development
Workshop conducted at the Cagayan de Oro (Bugo) School of Arts and Trades, from 23rd to
27th October 2003.

It was based on the Competency Standard for Automotive service Technician developed by the
Skills Standard and Certification Office (SSCO), and the Competency – Based Curriculum
Instructional Modules developed by the National Institute for Technical Vocational Education
and Training (NITVET), Technical Education and Skills Development Authority (Technical
Education and Skills Development Authority).

Some materials for contextual learning (Science, Mathematics and Communication) were
supplied by Academic Teachers.

This learning instrument was developed by the following personnel:

Technology Instructors: Ricardo D. Bacaling Jr.
Elesio V. Ardaniel

Academic Teachers: Maria Belina A. Hubahib
Theresa Celendro
Marlo R. Oraiz
Gaspar D. Sinoy

Vocational Institution Supervisor: Teresa E. Jamisola

Facilitator: Abel B. Elpedes

This work was produced with funding provided by TESDA.

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