Crankcase Breather, Exhaust Muffler and Elbow, Fill and Drain
(a) Loosen coupling and disconnect muffler.
(b) Refer to figure 4-22 and remove male coupling and
exhaust elbow, crankcase breather, oil filler and oil drain plugs, by
turning each item counterclockwise.
(2) Cleaning and inspection.
Drycleaning solvent normally has a flash point
of either 100 or 138 degrees F, depending on the
type being used, but may flash at much lower tem-
peratures if contaminated with gasoline or jet
Avoid repeated and prolonged skin contact.
Do not use near open flame or excessive heat.
(a) Clean all parts with drycleaning solvent (item 1,
App. F), and dry thoroughly.
(b) Inspect all parts for cracks, breaks, and other
Replace defective parts.
(c) Examine all threaded parts for damaged threads.
Replace missing or damaged parts.
(a). Refer to figure 4-22 and position oil drain and
oil filter plugs, -crankcase breather, and exhaust elbow and
Install each item by turning clockwise.
(b) Install muffler and tighten coupling.
When installing muffler, gasket set must be in-
stalled in this order:
one copper, four asbestos
and one copper gasket.
Secure coupling half
quick-disconnect levers with safety wire.
(a) Remove spark plug (para 4-24e).