General Inspection

General Inspection – AUTOMATIC TRANSMISSIONS

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PURPOSE
The automatic transmission selects the correct gear to provide maximum power, economy and driver comfort.  Transmissions have changed over the years and now are computerised which makes them more expensive to repair.  Also the transmission is forever changing, making it impossible to supply the same transmission fluid for every make of vehicle.  If the transmission is computerised then the fault code should be accessed and read for stored problems.  So in other words, the transmission computer will store transmission ...

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General Inspection – Alloy Rims

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PURPOSE
Alloy rims are beneficial to the braking system as they allow a faster cooling down period.  Most alloy rims should last the life of the vehicle if driving on sealed roads.  Alloy rims should be fitted with the correct wheel nuts with one of those being a locked nut.  They are very popular but they are expensive, not repairable and can affect your insurance policy. 

THINGS TO LOOK FOR
A dented alloy rim is easily detected and better replaced as ...

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General Inspection – Stepper Motor

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PURPOSE
The air valve, idle control valve or stepper motor all have one thing in common.  They are designed to maintain a smooth idle by manipulating the air supply to the air inlet manifold and are computer controlled.

THINGS TO LOOK FOR
The air valve, over a period of time, may clog up and may cause the engine to idle poorly and the stepper motor may stop stepping.  If the stepper decides to cause the engine to idle at around 2,000 ...

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General Inspection – Air Cleaner

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PURPOSE
The air cleaner assembly contains the air cleaner and it’s also designed to arrest a possible flame from a backfire.  The original air cleaner assembly is the best flame arrester as an after market air cleaner may not be designed to flame arrest a possible backfire.  It may cause an under bonnet fire.

THINGS TO LOOK FOR
If you are purchasing a second hand vehicle check that the air cleaner assembly is the original as this design will prevent an ...

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General Inspection – Air Cleaner Element

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PURPOSE
An air cleaner element cleans or filters the air before it enters the carburettor.  This prevents any damage to the combustion chamber. The air cleaner element should be checked and cleaned every 10,000kms.

THINGS TO LOOK FOR
The obvious is a dirty air cleaner element.  Another filter inside the air cleaner assembly is a positive crank case ventilation valve filter pad that should also be checked.  If clogged, soak in kerosene or replace if necessary.  Another common problem is oil ...

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GENERAL INSPECTION – Rear main seal

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ENGINE
Rear main seal

PURPOSE
The rear main seal is at the rear of the crankshaft, sealing the oil inside the engine and preventing it from leaking outside the rear of the crankshaft.  The rear main seal is designed to last at least 100,000Kms.  Unfortunately, with a longitudinal motor, rear main seals may only last 60,000-80,000Kms.

THINGS TO LOOK FOR
When checking for oil leaks it’s always good to check underneath the vehicle around the rear of the engine.  But make sure ...

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What Are The Two Types Of Automotive Batteries ?

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Most people are familiar with the conventional “SLI” ) Starting, Lighting and Ignition) lead-acid battery which delivers the high amp energy necessary to provide maximum starting power.  Once the engine has started, the alternator recharges the battery.  However, repeated cycling, as well as the continual process of discharging and recharging, eventually weakens the :SLI: battery which provides concentrated starting power, the deep cycle type battery supplies a constant but relatively low amount of current for a long period of time ...

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What Do We Expect From The Automotive Battery ?

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In addition to providing the starting power required, the automotive battery also supplies power to accessories such as lights, fans and radio when the engine is not running.  Between low engine speeds and when accessory load is greater at high running speeds, a battery makes up the difference by stabilising the alternator output.

This stabilising effect also protects a vehicle’s electrical system by smoothing out sudden high voltages which can damage electrical components.

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Batteries – What Are Batteries ?

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Ask the average battery purchaser this question and most would say that a battery is simply the source of power necessary to start the engine of every motor driven vehicle.  Since most purchases are unplanned for, consumers usually have little knowledge or understanding about one of the most vital components of an automobile – the very essence of its electrical power.

With the increased demand of today’s technologically advanced cars, a basic understanding of the automotive battery, how it works and ...

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Spark Plugs – Splash Fouled

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Appears as “spotted” deposits on the firing tip of the insulator and often occurs after a long delayed tune-up. By-products of combustion may loosen suddenly when normal combustion temperatures are restored. During hard acceleration these materials shed from the piston crown or valve heads, and are thrown against the hot insulator surface.

 

 splash4

More information On Basic Car Maintenance CD Rom
Information supplied by Champion Sparkplugs ©2009

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