56
AeroVee 2.1
Rev Z. 01/14/2015
Sonex Aircraft
LLC
© 2014 All Rights Reserved
INSTALLING the EXHAUST
Parts Required
__ Optional Sonex Aircraft Exhaust Kit
__ Exhaust Gaskets (included in ACV-P02-15
Gasket Kit). Available separately as p/n ACV-P01-73.
__ 1. Using the supplied
Exhaust Attach Bolts
(ACV-Z01-39), tem-
porarily attach the ex-
haust manifolds to the
cylinder heads without
exhaust gaskets.
Note: If your cylinder
heads have exhaust
studs installed they will
need to be removed to
fit the 2-into-1 exhaust.
Trim the end of each exhaust manifold (arrow) as needed to
get the exhaust extensions to exit the cowl in the desired loca-
tion.
__ 4. Attach a spring between each pair of spring clips. It may
be necessary to shorten the springs for your particular
installation.
Note: The left side exhaust pipe (pilot's side) may con
-
tact the super tin and/or cylinder head baffle. The super
tin and/or baffle can be reformed as needed to minimize
the contact, though some contact is not a concern.
Note: The space between the exhaust flanges can be
increased or decreased by hand if it is too tight or too
loose on the cylinder head. Tightening the exhaust at-
tach bolts during final installation will pull the header
together for a proper fit on the cylinder head.
__ 2. Slide an extension pipe onto each manifold. It may be
necessary to shorten the length of the exhaust manifold
if the extensions interfere with the firewall. Do not
shorten the expanded portion of the extension pipes.
Clamp
installed
on
Firewall
2
1
4
5 & 6
__ 3. After each exhaust manifold has been trimmed to the
proper length, remove the manifolds from the cylinder
heads and re-install them with new exhaust gaskets
(included in the gasket kit).
__ 5. Attach a loop-type line
support clamp (AN742
or equivalent) to the
firewall approximately
3" above the spring
clips on the exhaust
extensions.
__ 6. Attach a spring
between the support
clamp and each exhaust
extension. It may be
necessary to shorten
the springs for your
particular installation.
__ 7. Trim the ends of the exhaust pipes to final length. The
pipes must be long enough to ensure the exhaust gases
exit the cowl, yet pipes which extend too far below the
cowl will add drag and reduce your airspeed.
Installing EGT Probes
EGT probe(s) must be installed 4" from the exhaust flange of
each cylinder that is being monitored. This distance is based
on a path down the center of the exhaust pipe. It is also impor-
tant to consider the orientation of each probe to avoid interfer-
ence between the probe and cowling.
important: do not trim the egT probe wires.
There are a variety of EGT probe styles with different mount-
ing methods. Follow the instructions provided with your
probes for the proper mounting method.
