Wrench Adapter Fabrication - Cessna 150 STANDARD Service Manual

NOTE
When installing a new filter element, it is
important that all gaskets are clean, lubri-
cated, and positioned properly, and that
the correct amount of torque is applied to
the filter hollow stud. If the hollow stud is
under -torqued, oil leakage will occur.
If
the hollow stud is over-torqued, the filter can
might possibly be deformed, again causing
oil leakage.
Lubricate rubber grommets in each end of new
filter element, upper and lower gaskets, and
metal gasket with clean engine oil or general
purpose grease before installing. Dry gaskets
can cause false torque readings, again result-
ing in oil leakage.
Before assembly, place a straightedge across
bottom of filter can. Check for distortion or
out-of-flat condition greater than 0.010 inch.
Install a new can if either of these conditions
exists.
After installing a new upper gasket on the lid,
turn lid over. If gasket falls, try a different
gasket and repeat test.
If
this gasket falls
off, install a new lid.
1-11 /16 R
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1-7/32
!
g. Inspect adapter gasket seat for gouges, deep
scratches, wrench marks, and mutilation. If any
of these conditions are found, install a new adapter.
h. Place a new filter element in can and insert
hollow stud with a new metal gasket in place, through
the can and filter element.
i. Position a new lower gasket inside flange of lido
Place lid in position on can.
j. Install filter assembly on adapter with a new
upper gasket in place. While holding can to prevent
it from turning, tighten hollow stud and torque to
20-25 lb-ft (240-300 lb-in), using a torque wrench.
k. Install parts removed for access, and service
the engine with proper grade and quantity of engine
oil. One additional quart of oil is required each time
filter element is changed.
1. Start engine and check for proper oil pressure.
Check for oil leaks after warming up engine.
m. Again check for oil leakage after engine has
been run at a high power setting (preferably a flight
around the field).
n. Check to make sure that the filter has not been
in contact with adjacent parts due to engine torque.
o. While engine is still warm, recheck torque on
hollow stud, then safety hollow stud to bracket on
can, and safety adapter nut to other bracket on filter
can.
ALL DIMENSIONS ARE INCHES
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.L...---!-----,f---l/
16
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R (TYP)
MATERIAL: 4130 (Rc. 35-38)
Figure 11- 5. Wrench Adapter Fabrication
11-16