Zenoah G231PUH, Owner'S Service Manual

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3. Engine Mounting
G260PU
Make sure that the G260PU is mounted on the aircraft grade plywood with more than
6mm of thickness or a mount of equivalent strength and is firmly fixed with 4 bolts.
[ NOTE ]
1. Be sure to set flat washers or metal plate on the reverse side of the mount to prevent
bolts from sinking into the mount. Before be sure to check for loose bolts.
2. Since the engine is equipped with a float-less carburetor with a diaphragm pump, the
direction of cylinder and position of fuel tank can be freely selected .
3. The Fuel head between carburetor and bottom of fuel tank must be less than 100
mm (4 inches).
4. If the rubber joint is placed between the engine and the body for anti-vibration, check
if the rubber is too week and select the proper hardness of the rubber, in order to
avoid the unexpected vibration under operating engine RPM zone.
Note carefully that if the engine is vibrated at idling, then the idling RPM is likely to
get unstable due to overflow at carburetor by the vibration.
5. Tighten the nut (M8) with a torque of 80~120 kg·cm by
using a spark plug socket wrench, which is applying
about 10~15 kg by hand as shown in the figure.
(NOTE)
Do not tighten the nut (M8) with too large torque, that
may damage the stud.
G231PUM/G231PUH/G260PUM/G260PUH/G290PUM
Make sure that the engine for boat or helicopter is mounted according to the instruction
manual to be provided by boat or helicopter manufacturer.
In case such instruction manual is not available, make sure that engine is mounted by
at least 4 points at engine's PTO side and recoil starter side.
[ NOTE ]
1) Be sure to set flat washers or metal plates on the reverse side of the mount to
prevent bolts from sinking into the mount.
Be sure to check if the bolts are security fastened.
2) The fuel head between carburetor and bottom of fuel tank must be less than 100 mm
(4 inches)
3.2
3.1
4
Nut (M8)
8cm
10~15kg
(80~120kg·cm)