
Jabiru J450 Constructors Manual
Pre-Paint>Fuselage>Firewall forward>Fit oil cooler
Tuesday, April 6, 2010
67 of 343
Pre-Paint>Fuselage>Firewall forward>Fit oil cooler
Objectives of this task:
In this task the oil cooler will be fitted to the base of the sump, the oil filter adapter will be
fitted under the oil filter and the whole assembly plumbed up and the oil overflow bottle will
be fitted to the firewall. There are 2 types of oil overflow bottles, fibreglass moulding or a
plastic moulding. Fireproof sleeving will be used to protect the oil lines.
Materials required:
Card # J24 „
Oil Cooler Kit
‟
Pipe sealing compound (rated working pressure of 2.6 Mpa, “
Holdtite
” brand or similar)
Mount the cooler
Hold the sump rails against the sides of the fin under the sump as shown above left and drill 2
x 3/16” holes through the rail and through 2 fins – note that the second fin hole is to
accommodate the free length of the screw. Fit a rubber grommet to each of the 4 large holes in
each sump rail and fit each sump rail into place – feed each countersunk screw though until
the nut can be fitted between the first and second fins then hold the nut and tighten firmly.
Fit the aluminium spacer tubes to the top of the oil cooler as shown arrowed above right,
aligning the tubes with the ¼” holes in the cooler and making sure that the AN4-42A bolts
can pass through freely. The tubes will be a firm fit in between the mounting lugs on the
cooler and they will be held in place by the AN4-42A mounting bolts.
Fit the lateral rails loosely to the sump rails with
AN3-10A bolts, washers and Nyloc nuts, then fit
the cooler up to the lateral rails and fit the AN4-
42A bolts through from the rear and secure with
Nyloc nuts. Tighten the ¼” bolts first and then
tighten the bolts that pass through the rubber
mounts. At this point the cooler should be mounted
firmly to the sump while being protected from
vibration by the rubber mounts. Re-check all nuts
for tightness. Refer to the drawing on the next page
for detail.
Содержание J450
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