Bailey V5 Engine Manual V1.0
Page 7
Installation Notes
The V5 engine is provided with a 2-pin plug with a pair of black cables. Connecting these two black wires
together stops the engine. The V5E comes with an additional wiring loom and voltage regulator.
Warning: The engine must be left at idle speed for at least 0 seconds prior to stopping, this allows the internal
exhaust components to sufficiently cool to prevent ignition of fuel in exhaust during rundown. Failure to do this
can result in exhaust damage.
The V5 carburettor is filled with a vent tube fixed to the top slide screw and a return pipe, which must be
returned to the fuel tank. The routing of this return pipe must be arranged so that there is a constant ‘fall’ to the
fuel tank with no possibility of fuel ‘puddling’ in the line. Modification of the fuel breather and return lines in any
way will cause carburetion problems.
Engine Breather Pipe
The engine must be fitted with a breather pipe connected to the cam cover outlet, minimum 6mm I.D. hose and
minimum hose length of 500mm. Without this specification pipe fitted the engine may eject oil from the breather.
Fuel Line attachment
The fuel feed line must be attached to the fuel pump inlet and a suitable filter installed upstream of the pump.
We recommend a ‘primer’ bulb of some sort upstream of the pump to enable manual filling of the carburettor
prior to starting.
Choke
The V5 CVK carburettor has no choke (cold start enrichment device) fitted. Instead there is an accelerator pump
connected to the throttle mechanism.
Propeller
Recommended ‘pusher’ propeller is Helix .30m, part number H30F .30m L-NM-7-2 (6xM8x75 / 25.4)
If attached using standard 6-stud configuration, nut torque is 0- 5lbs/ft ( 5-20nm). Tighten opposite nuts
gradually until the desired torque is reached. With this attachment system a prop-tracking test must be
performed after every fitment. Maximum blade difference is 3mm.
If attached using BQRP (single bolt) tighten central socket cap bolt to 0- 5 lbs/ft ( 4-2 nm), allowing the hole
drilled through its head to line up with the hole in the cover plate. If the hole in the head of the bolt and cover
plate do not line up when torqued between 0- 5lbs/ft ( 4-2 nm), then slacken the bolt, turn the cover plate /6
of a turn clockwise or anti-clockwise and re-tighten the bolt. Once the hole in the bolt head and cover plate are
aligned, push the metal R clip through the assembly
Throttle cable
The V5 is not supplied with a throttle cable, but this can be ordered as an optional extra. Ensure the throttle slide
closes fully with every possible orientation when using a flexible ‘hand’ throttle assembly.
The stop button should ideally be placed in a position where it is very easy to press. We accept that the
occasional inadvertent pressing of the stop button during launch is much preferable than failure to reach it in an
emergency/aborted take-off.
Propeller clearance
Radial and lateral propeller tip clearance should be at least 50mm.
Exhaust clearance
Minimum distance from any point of the exhaust system to any fuel tube or tank should be 60mm in an ‘open’
installation and 00mm in a ‘cowled’ installation.
Forced Air cooling Intake
There must be sufficient clearance for cooling air to enter the engine cooling fan housing.
The cross sectional area of the intake (9503mm²) must be maintained or enlarged in every part of a cowled
installation. In the case of a flat plate covering the air intake, the intake cross sectional area must be maintained;
therefore the recommended minimum clearance is 28mm (9676mm2)
Please note this is a minimum and does not allow for thrust compression of the engine mounts.
We recommend a 2 position N.O. (normally open) master switch as well as a
momentary push button (N.O.) switch to stop the engine. The Bailey Easy Start
System (BESS) ma es the engine very easy to start - Remember always safety first !
