Ground Check To Be Carried Out Before Starting Up The Engine For The First Time - Compact Radial Engines MZ201 Instruction And Maintenance Manual

How to prepare the blend
A good method for preparing the blend could prevent a good deal of problems. By adopting the same
method every time, the preparation will become an automatic process that will simplify matters no end.
1. Always use a suitable container: ensure it is clean, free of condensation and that you know the
exact capacity. To dilute the oil more easily, pour a small amount of fuel into the container.
2. Pour in the required amount of oil. Shake slowly to blend the oil and fuel.
3. Add sufficient fuel to obtain the prescribed blend. If you use a filter at this stage, it should have a
very fine mesh in order to filter any water or foreign particles.
4. Screw the lid back onto the container and shake vigorously. Pour the blend into the fuel tank of
your aircraft. Use a funnel with a filter that is fine enough to prevent any impurities from entering the fuel
tank whilst allowing the oil to pass through.
GROUND CHECKS TO BE CARRIED OUT BEFORE STARTING UP THE ENGINE FOR THE
Before starting up the engine for the first time, carry out a general inspection, checking in particular:
Ensure the carburettor and fuel feed circuit are securely installed.
Check the suction pressure piping between the crankcase inlet and the fuel pump on the carburettor, also
check the decompression valve and carburettor inlet.
Check the condition of the electric cables and that the spark plug's high tension lead has been fitted
correctly.
Check that the two black cables going from the engine shut-off control to the switch have been connected
correctly
Ensure the silent-block engine mountings are properly installed and that the locking bolts have been
tightened sufficiently.
Check the reducer, the belt tension and the fastening screw on the eccentric.
Never run the engine without the propeller; this is particularly important for the model without forced air
cooling.
Ensure the propeller and locking bolts are in good condition. Check that the propeller is suitable for the
engine as well as the latter's direction of rotation.
(Only good quality balanced propellors must be used)
FIRST TIME
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