Sonex Jabiru 3300 Oil Cooler Upgrade Installation Instructions - Manual (Page 7)

AeroClassics Oil Cooler
7 Sonex Aircraft
LLC
© 2008 All Rights Reserved.
1. Remove the barbed fittings from the Jabiru-provided oil
cooler adapter.
2. Drill through the existing hose fitting holes with a 7/16"
drill and re-tap each hole with a 1/4 NPT tap.
3. Apply teflon paste (do not use teflon tape) to the threads
of two (2) AN816-6D nipples and install them in the oil
cooler adapter.
4. Install the oil cooler adapter and oil filter.
The barbed fittings are removed from the Jabiru-provided oil
cooler adapter and replaced with threaded hose fittings.
OIL COOLER INSTALLATION
5. Apply teflon paste (do not use teflon tape) to the threads
of two (2) MS20822-6-6D elbows and install one in each
of the oil cooler's ports. The elbow on the left side of the
engine must face forward, the elbow on the right side
must face aft.
6. Install a 90 O swivel hose end (Jeg's p/n 799-613160) on a
12" piece of Pro-Flex hose.
The installation of the oil hose on the left side of the engine is
shown in this photo.
7. Determine the proper length for the hose to reach from the
oil cooler adapter to the oil cooler fitting on the left side
of the engine, including end fittings, and trim the hose.
8. Install a straight hose end fitting (Jeg's p/n 799-610020) to
the end of the Pro-Flex hose that attaches to the oil cooler.
9. Install the hose assembly. Do not use sealing compounds
or teflon tape on these fittings.
10. Install a straight hose end fitting (Jeg's p/n 799-610020) to
the end of a 30" piece of Pro-Flex hose.
11. Determine the proper length for the hose to reach from
the oil cooler adapter to the oil cooler fitting on the right
side of the engine, including end fittings, and trim the
hose. The hose should follow a path that eliminates sharp
bends. See photo below.
This photo, looking up at the bottom of the engine, shows the
smooth bend the oil hose takes from the right side oil cooler
port to the left side of the engine. While this is not an Aero
Classic cooler installation, hose routing is the same.
Plumb the Oil Cooler
Materials Needed:
q AN816-6D Nipple, Qty. 2
q MS20822-6-6D elbow, Qty. 2
q 90 O swivel hose end (Jeg's p/n 799-613160), Qty. 1
q Straight hose end (Jeg's p/n 799-610020), Qty. 3
q MS21919-WDF8 Clamp, Qty. 1
q -06 Pro-flex Hose
q Teflon Paste