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Mack, Jr. Trucks—1936-1937—Carbureter No. 303S,
$22.05—No. 304S, $29.40
WHEN SERVICING, USE GASKET ASSORTMENT No. 616—LIST PRICE $0.80
All Prices Subject to Prevailing Surcharge
4.9
41,40
IA30
IA-31
4.264•
6.1405
7-766 7-766
14.1669 7-30
® I
38A.26 39-11
26 2O
2032
39
25.465 25-SOS
68
06 0 60
55 1 86-11
61-1 61-71
61 84
61.72
I
10154
117-24
lJ
105340
101.55 101.58
117.30
121.26 121.29
115-26
121-17
15015
1503.3
156.12
fit
6215 162.19
160.21
160-22 S
160.235
159-46
183-10 183.11
160-17
Part No. I-1235 I-129S IA-23 IA-24 IA-30 IA-31 2-84
2-85 3-234S 3-236S 4-264S 4A-43 6-140S 6-154S 7-73S 7-78S
I IB-16 I I B-27 I IB-40 IIB-41 I I B-50 IIB-55 IIB-69 I I B-77 I I B-77
14-1525 14-1665 17-30
20-31 20-32 20-37 20.38 2I-49S 24-19S 25-48S 25-50S 25-52S 30A-37 38A-26
39-11 43B-10 48-39. 48-40 49-89 49-96 61-58 61-61 61-71 61-72
*This gasket to be installed governor and manifold.
*Gaskets so marked must be soaked
3.30
**Flange gasket—(with governor) 1'/4" SAE .09
**Flange gasket—(with governor) 112" SAE .09
tFlange gasket—(without governor) 1/4" SAL .09 *Flange gasket-(without
governor) 12" SAE .09
tThrottle valve ..... 15
.30
tThrottle shaft and arm assembly-.._ _- .90
*Throttle shaft and arm assembly .90
Throttle lever assembly 90
Throttle shaft dog .. . .30
*Air horn assembly-- __-_----..-- -.._.._...-- 3.70
tAir horn assembly_ _. .. 3.70
*Choker valve assembly- _ - .75
tChoker valve assembly- - -...__._-...__._ -. . .75
Pump jet passage plug .15
Idle hole plug .15
Rivet plug (Sup. by 11B-79) .04
Rivet plug 04
*Idle vent screw plug -__-. .15
Needle retainer plug .07
Rivet plug . . . __.-_-....-_ .._-_. . .04
Idle vent screw plug .... .15
*Rivet plug 02
Choker lever and screw assembly .30
Choker lever and shaft assembly .75
Pump piston needle._ _.__ _---._ _.__..__-._. .20
Needle seat gasket_. .. .07
Metering screw gasket. .07
Step-up piston washer .07
*Pump piston needle seat gasket
.07
Float and lever assembly 1.20
Float lever pin and plug assembly .15
tNeedle and seat assembly - 1.20
*Needle and seat assembly 1.20
Pump piston needle seat and gasket assembly. .45
I d l e adjustment screw .. -..__ .45
Step-up passage bushing . ..... . .07
Valve attaching screw 2 for .07
Pump piston rod washer _. . .07
tPump jet, .0315" 20
*Pump jet, .0354" ......
push rod- ...._.. .. .15
Pump piston rod ..- -.. .. . _. .04
Throttle lever adjusting screw spring_-_ - . .07
Step-up spring 07
Choker spring .15
Choke pull-back spring . __._.._ -__ 15
between carbureter and
*Throttle valve .___-.-_.-_ _-
NAME OF PART List Price
I'Body flange assembly_--.._ - . $3.30
*Body flange assembly
.20
Part No. - NAME OF PART List Price
61-84 61-85 62-52S 86-10 86-II 86-15 86- 1 7 101-6 101-10 101-12 101-28 101-39
101-54 101-55 101-58 I01-1425 101-1455 I01-146S 105A-10 105A-13 115-25 116-13
117-24 117-30 121-17 121-28 121-29 123-18S I45-14S 145-23S 149-27S 149-32S 150-35
150A-13 156-12 59-10 159-15 159-19 159-46 159-53 159-54 60-17 160-21 160-22S
160-23S 162-15 162-19 183-10 83-II
Idle adjustment screw spring .07
Pump sprang .I5
Choke tube bracket assembly... .75
Lock washer (11/64" I. D.) (Use with 101-6). .02
Lock washer ( 9/32" I. D.) (Use with 101-54).. .02 .02 Flange stud lock
washer_._-_
Lock washer (15/64" I. D.) (Use with 101-55) .02
Choke bracket att'g screw (Sup. by I01-142S).. .07
Wire clamp screw ..... ............. .07
Choker tube clamp screw. .....-..__ .07
Choker lever clamp screw _ .07
Throttle valve screw .. .___ -.._..-.2 for .07
Body flange attach. screw (Sup. by 101-145S)._ .07
Air horn attaching screw (Sup. by 101-1465) .07
Throttle adjusting screw_ __ .07
Choke bracket attaching screw and washer ass'y .07 Body flange attaching screw
and washer ass'y...- .07
Air horn attaching screw and washer assembly. .07
Choke tube clamp nut ... .. .07
Flange stud nut .--.. _ _________ -___-__. .07
Choker connector rod 20
Ball _- _.-.- . . . .04
Pump connector l i n k ... .15
Pump operating link- -- _ 20
Body gasket 15
tBody flange gasket .07
*Body flange gasket _..-.-..._. .07
Idle orifice tube and plug assembly-_..__ __ .30
*Main vent tube and plug assembly_...`__.. -
30 fMain vent tube and plug assembly .30
tSiep-up valve assembly __ - - .60
*Step-up valve assembly . --__. . _- _- .60
Pump rod pin - .04
Pin spring --.__-_ .02
Gas line elbow _ .. ..----..._- ....__. -.... .45
*Main metering screw—I size lean 45
*Main metering screw—2 sizes lean- - ._ _-.__ .45
*Main metering screw—standard - _. - -_.._._.45
*Main metering screw—standard .. .45
*Main metering screw—I size lean.._._.- .45
*Main metering screw—2 sizes lean .45
Pump piston (outer) 60
Pump piston ..... . .20
Pump piston, needle and plug assembly 45
Step-up piston assembly __-._- .45
*Power orifice . . .15
*Power orifice ..... .15
tlnsulator . . . . ...... .....---- .50
.50
*Insulator
governor when governor is installed. Original flange gasket to remain between
tUsed on 3035 only. *Used on 304S only.
in 90 proof denatured alcohol for 15 minutes, installed on part, and let dry
before using.
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