Lycoming O/Io-320/360; Lycoming O/Io-540; Continental O/Io-470/520/550 - Honeywell Vibrex 2000 User Manual

This section gives a brief explanation of several Vibrex 2000 and
Vibrex 2000 Plus installations on selected aircraft and some
general types of aircraft. Use these summaries as guidelines for
the user's own installation operations.
4.5.1
There is a 1/4-20 threaded boss on the forward left-hand side of
the engine crank case, which is ideal for mounting. Often the
Velocimeter can be mounted without removing any cowling. The
photocell can be collocated with the Velocimeter on many
installations.
Alternately, the forward-most backbone case half bolt may be
used to mount the Velocimeter. In both installations, orient the
Velocimeter with its vertical connector pointing up.
4.5.2
Occasionally these engines have a front-mounted propeller
governor that offers good access and is a good place to mount.
The forward-most case half bolt is always an option. On some of
the up-draft installations, there are free threaded bosses near the
starter.
4.5.3
Use the forward-most backbone bolt, if it is accessible.
Otherwise, use a forward oil cooler mounting bolt. Use the bolt
closest to the crank shaft. Some engines have a seal plate at the
crank shaft front seal with exposed studs. These seals are close to
the spinner and clearance may be tight, but it is a usable balance
location.
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Lycoming O/IO-320/360

Lycoming O/IO-540

Continental O/IO-470/520/550

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Chapter 4 – Installation