DETROIT DIESEL 53
A I R SILENCER
The air silencer (Fig. 1) is attached to the intake side
of the blower housing to reduce the sound level of the
air entering the blower.
A perforated sheet metal partition divides the silencer
into two sections. The engine side of the partition and
the outer shell forms an air duct the entire length of
the silencer. Air enters this duct from both ends and
flows to the blower intake opening at the center. The
area between the partition and the outer side of the
silencer is filled with sound absorbent. flame-proof.
felted cotton waste.
An air intake (blower) screen is used between the air
silencer and the blower housing to prevent foreign
objects from entering the blower.
Fig. 1 - Air Silencer Mounted on In-Line
Remove and Install Air Silencer
2. Clean the blower screen with fuel oil and dry it with
While no servicing is required on the air silencer. it
may be necessary at times to remove it to clean or
replace the blower screen or to perform other service
4. Place the lock washers over the bolts and slide the
1. Support the silencer and remove the attaching bolts
bolts through the bolt holes in the silencer.
and lock washers. Then remove the silencer and the
5. Place the blower screen (In-line engine) over the
projecting bolts and position the silencer against the
blower housing. Then tighten the bolts.
April. 1971 SEC. 3.2 Page 1