8.2
Fitting the Ignition Module
Mount the ignition module on a foam pad or within a foam box. We suggest
that the module is mounted within the fuselage immediately behind the
firewall.
It is important to ensure that the ignition leads are kept away from sharp
edges. Broken shielding on the plug lead may cause radio interference!
A ring of foam used to line the fuselage cut out hole for the leads will provide
protection against chafing, as pictured below:
8.3
Fitting the Exhaust and Fibreglass Pipe Tunnel
Now fit the exhaust system of your choice.
For pipe muffler systems a header is available that has been specifically
designed to fit the Vision 3D.
We advise that pipe mufflers (such as the MTW TD75) are supported at both
ends.
Because the manifold is non-flexible, it is advisable to install the pipe on a
flexible mounting system front & rear of the silencer. The Dave Brown “Hush
clamps” work well, but have to be insulated from the heat of the Gas engine
exhaust. You will have to find a larger “o” ring from a motorist store of
sufficient length for the large diameter of the MTW silencer.
Hard mounting points for the pipe mounts can be installed between the
fuselage formers prior to the fitting of the pipe tunnel. We would recommend
Dave brown 40 Hush clamp for the front mounting, this being placed on the
manifold /pipe joiner which is made of a Teflon material, as this will help
isolate the heat from the hush clamp.