General Inspection

COOLING SYSTEM – Viscose fan

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PURPOSE
The viscose fan is attached to the water pump and designed to cut in and out depending on the temperature of the water.  The fan will last at least 5 years or 100,000Kms.  After this the fan should be checked periodically every 10,000Kms for its effectiveness.  The viscose fan is a fluid substance that changes its viscosity depending on the heat, allowing the fan to freely move or lock up on a one to one ratio with the pulley.

THINGS ...

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THE NOISE – Thermostat stuck or sticking

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THE EFFECT
This type of problem will give the same affect as a blown head gasket.  It will cause the cooling system to appear unstable.  It may also cause the upper radiator hose to tear apart as the thermostat decides to open with a great force of hot water.

THINGS TO LOOK FOR
If you decide to put another radiator hose on.  What you  need to do is feel the upper and lower radiator hoses at normal operating temperature, very carefully, ...

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EFI – Fuse box

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PURPOSE
The fuse box is designed to hold fuses and relays and there may be several of these around the vehicle.  It’s always a good idea to keep a few spare fuses, just in case.

THINGS TO LOOK FOR
When checking the fuses, it’s best to check the fuses with a test light and don’t rely on the fuse index map indicating where the fuses connect as they may be incorrect.  What is meant by the map is that sometimes when ...

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EFI – Fuel pump relay

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PURPOSE
The fuel pump relay is designed to switch the fuel pump on with a low voltage.  At the same time the relay is a heavy duty switch making it possible to switch on and off without wearing out the switch or preventing arcing in the switch.  A fuel pump relay is designed to switch off if overloaded.

THINGS TO LOOK FOR
When the fuel pump relay seems to be getting warm to hot, this indicates that it is either being ...

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EFI – Air flow meter

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PURPOSE
The air flow meter is a component to allow the velocity of air through it and at the same time it measures the air passing either by a hot wire or a flap connected to a potentiometer.  This value is sent to the computer indicating the quantity of fuel required.  If the air flow meter is a hot wire type it also has a self cleaning process to keep the wire clean from the value interference.

THINGS TO LOOK FOR
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Electrical System – COIL AND SPARK PLUG LEADS

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PURPOSE
The purpose of coil and spark plug leads is to deliver high voltage spark from the coil to the spark plugs.  As ignition leads carry a high voltage it is very important to use caution when handling these leads with the ignition on or with the engine idling.  Ignition leads are made of fibres to reduce the possibility of radio wave interference.  Due to the high demand of these leads they may fail at any time. 

THINGS TO LOOK FOR
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General Inspection – Air Bags

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PURPOSE
Air bags are designed to save lives and reduce the risk of personal injury to the driver and passengers. An extra $3,000.00 to purchase a vehicle fitted with an air bag is well worth the expense. If fitting any additional bumper bar component it may affect the air bag safety operation. 

THINGS TO LOOK FOR
Is it possible to see if an air bag is operating correctly or if buying a second hand vehicle fitted with an air bag?  The ...

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General Inspection – CLUTCH

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Mechanical configuration of linkages

 
PURPOSE
A mechanical configuration of linkages is to move the clutch lever fork.  A mechanical configuration is used instead of a hydraulic clutch applicator.  This is also adjustable.  A mechanical configuration may also use a cable that makes it adjustable.  Any clutch assembly must have free play.

THINGS TO LOOK FOR
A mechanical clutch configuration may require adjustment.  If you notice the pedal becoming hard to press this could be an indication of a frayed cable or ...

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General Inspection – Clutch slave cylinder

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PURPOSE
The clutch slave cylinder is designed to plush the clutch lever in order to engage or disengage the clutch lever or fork.  The clutch slave cylinder has a bleeding nipple fitted  and bleeds the clutch hydraulic system.

THINGS TO LOOK FOR
The clutch slave cylinder is a component under pressure while it is in use making it possible to leak.  If there are any drops, or dampness is found around the clutch slave cylinder, it needs to be attended to ...

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General Inspection – CARBURETTOR

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PURPOSE
The carburettor is a very important multi function component as it mixes air and fuel together and it allows the engine to idle, to rev and to maintain desired speeds and overtake on full throttle.  At the same time its purpose is to mix air and fuel at the correct ratio.  The carburettor is only designed to operate with clean fuel and must be mounted securely in the manifold. 

THINGS TO LOOK FOR
The carburettor is capable of leaking fuel.  ...

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