MO-52
WILLYS
MODEL
"MB"
%-TON
4
x
4
GOVERNMENT TRUCK
EXHAUST SYSTEM
FIG.
1-EXHAUST
SYSTEM
Wlllya
Pord
Wlllys
Pord
Part
Part
Part
Part
No.
No.
NO.
h'mms
No.
No.
No.
bme
1
m058
GPW-5274
Mumei
Supwrl
1mulator
Plalc
17
52983
23393s
&liauir
Pip
Ertcnsion
to
Skld
Plnte
a
52372
2349gS
Uody
S111
t0
h<uFRcr
Support
Bol1
Bolt
3
~-8bE
GI>\v.52SJ
Muffler
Su~mrt
Insulator
18
8187
337074
Exliaual
Plpe
Extcnalon
10
SkU
Plalc
4
50829
203fi7.57
Miifflrr
Supriart
Suew
n01t
NU*
5
&W058
GPW5274
Miimer
Suararr
lnrulalor
Plat*
19
51833
34806.S
Erlioual
PI=
Edcnslun
10
Skld
Izlalc
o
A-5753
hlun~cr
s~~rnrt
clrmo
walt
~ockaasher
7
A-u57
GPW-5282
hluIl!er
Supwrt
Rrao
W
52274
34748.52
Exliru~
Plm
Ertcnslan
ro
skld
~lale
8
A-6118
bluf!!er
Aswaibly
noli
Piain
U'aaher
9
A8119
>Iufflci
Tal1
Pi-
Clamp
21
A-1251
CPW5231-B
Undcrframc
Skid
I'lair
10
60029
24387-S
Bluffler
Support
Screa
11
m6004
GPW.5270
Kxliaim
I'ine
10
Mumer
Clamp
12
&!l22
24407-5
Exliaust
Pipc
to
MuRlei
Clamp
Soca
.
13
5910
33708-S
I?xliaust
1'I~e
10
Mufflci
Clamp
Brr*
xut
14
b1833
34806s
Exl~aust
Pipe
:o
Muffler
Clamo
Soca
SUL
Lockwashcr
16
A.1288
GPWSU8
Exhauil
Pip
Asarmbly
16
~-13~
GP1v.5251
Exhauat
Pip
Extcoalan
Clamp
íio
Skld
I'late)
Seamless exhaust pipe and flexible metal tubing
connect the Manifold to the
Mumer.
The Muller, No.
8.
Fig.
1
is designed lor straight
through exhaust to minimize back pressure. The
Muffler is attached to the under side of the vehicle
on the right hand side by means of support straps
and flexible Insulators.
The exliaust pipe slides into the
nipple on-the
front end of the Muller and is held in place by
means of a clamp, No.
11.
Exhaust
and
Intake Manifold
The exliaust aiid intake Manilolds, make
a
unit
in which
tlic Iiot exhaust gases are thermostatically
coiitrolled. and direcied around tlie intake
Mani-
fold to assist in vaporizing tlie fuel when engine is
cold, tliereby aiding in warming up tlie engirie and
reduciiig oil diliition. It also niinimizes the use of
tlie carburetor
choke conirol and results in proper
temperature of tlie incoming
gases under al1 opera-
ting conditioris.
When tlie engine is cold, tlie counterweiglit lever
1346678
No.
G,
Fig.
2,
closes the vahe and directs the hot
FIG.
2-HEAT CONTROL VALVE
exliaust gases against the intake Manifold. As
WIIIY~
ivnrt
Ford
part
the engine warms up, tlie thermostatic (or Bimetal)
No.
N"-
NO.
N~~~
spring No.
7
expands and opens the valve directing
1
6352
355836S7
Nut
Conkol
Valvc
hver
Xrew
tlie exhaust gases into the exhaust pipe.
2
mi206
GPW-9458
~cat
Conlrol
valvc silalt
3
a17211
GI'W-9485 Ilnt
Controi
Vilve
Lever
Kcy
When asseinbling the Manifolds to the cylinder
4
5272
3ssiao-s
HER^
CO~~~DI
va~ve
k"=.
clarnp
Xrcv
block, new gaskets should be installed, and the nut5
5
a17209
GPW-B484
lfeat
\vrahar
contra1 valve BI-MIUI spring
drawn up evenly uiitil they are al1 tight to avoid
6
637210
GPW-MS
HearConlrolValvcCounlu<vcizht
bver
7
637m
GP\I'-9467
Hcal
Control Valve
Bi-Mcinl
Svring
gas leakage. Torque wrench reading,
31-35
ft. Ibs.
8
639743
GI'W.9463
tlort
Control
Vdve
BI-Metalswing
Stop
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