70-20-00
PERMATEX, THREADING PROCEDURE AND GASKET MAKER
1.
Use full strength non-thinned Permatex aviation grade 3D. Shake or mix well before
using.
2.
Apply
Permatex No. 3D to the threaded case half, only in areas where thread is shown,
using short light brush strokes until an even, thin coat is obtained. The
Permatex should be
viscous enough that most of the brush marks disappear. If not, use a new can of aviation
Permatex. (Allow the
Permatex to air dry to a tacky condition before threading).
3.
Apply a thin even coat of gasket maker between
.010
and .020 of an inch thick to all
areas listed in paragraph "2" above on the non-thread crankcase half.
4.
Apply grade D silk thread P/N
641543
as shown in illustration, being sure that free ends
are covered by gasket, except at oil seal.
5.
Assemble crankcase halves using bolts for alignment to prevent movement of the thread
and torque all bolts in proper sequence according to Figure
726002D. Torquing sequence as
soon as
~ssiMe.
SPACETHREAD
EVENLY BETWEEN
1
BOLT HOLES AND
EDGE OF
CIC
.-.
CROSS THREAD
THREAD
CIC ACCORDING TO PROCEDURE
LISTED IN STEPS
1
THRU
5.
AVIATION
----------
GRADE D SILK
PERMATEX THREAD PIN
641543
NO. 3D
FIGURE
70-20-00.
PERMATEX AND THREADING PROCEDURE.
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