General Inspection

LP GAS PETROL SOLENOID

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PURPOSE
The petrol solenoid is designed to allow petrol through it when energised, may be applied when starting  up the vehicle on gas.  Some vehicles fitted with electronic fuel injection may automatically start up on petrol, then when the rpm reaches 2000 the engine will switch over to gas.  Therefore it is important to keep at least a 1/4 tank of petrol for this reason.

THINGS TO LOOK FOR
Petrol solenoids are only as good as their connections.  Petrol solenoids are ...

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Gas Adjustments

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PURPOSE
The gas adjustments are calibrated best by the use of a Dynometer as this will provide the most accurate measure of torque thus maximising the fuel economy.  There are basically three adjustments to be made on any gas system.  They are idle, cruising and full throttle.  The idle should be the only one requiring adjustment and the full throttle and cruising adjustment are best performed on a Dyno by a qualified gas fitter, preferably every 10,000Kms.

THINGS TO LOOK FOR
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COOLING SYSTEM – Welsh plugs

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PURPOSE
Welsh plugs are part of the engine block and the head.  When the engine block and head are manufactured, part of the casting process is that these parts have the welsh plugs fitted where the machines are able to enter and then when the casting is finished a welsh plug is fitted to seal off the cooling or oil system.

THINGS TO LOOK FOR
Welsh plugs can leak at normal operating temperature.  When this happens, stop the engine and get ...

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COOLING SYSTEM – Water recovery bottle

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PURPOSE
The water recovery bottle is designed to recover expanded water and store it and when it has cooled down, the water flows back into the radiator.   Check radiator and the water recovery bottle at the same time. It is best checked when the water is cold. 

THINGS TO LOOK FOR
The water recovery bottle is part of the cooling system.  For this reason caution should be taken when checking the levels as the bottle, if warm, is under pressure.  The ...

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COOLING SYSTEM – Water or Coolant !!!

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PURPOSE
Water is designed to maintain normal operating temperature.  Water will only perform this function if all other components are operating correctly.  Water should include an additive to prevent corrosion and erosion.  If your vehicle is driven in either a very cold or very hot climate it may be necessary to add either an anti freeze or anti boil solution.  This will only work effectively if the corrosive inhibitor is changed every 12 months.

THINGS TO LOOK FOR
The colour of ...

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