,m
483S-574S: MASTER and MASTER DE LUXE MODELS
492S: FLEET ECONOMY MODEL
483S-515S-570S-574S: GOVERNMENT TRUCK
(Note: 4835-5155-5705-5745 booly painted
blad; 4925 body painted brown)
(All) Flange size 1'/" in~h c. A, E. P im"ry ven; ri, 11/32 in h J. D. Second<lry venturI, 11/ lb inch I. D.
Dimensions:(All)
jAil)
492S
Float Level:o fl
plu '"
Gasoline Intake:f>c,le
Vents:chok
Low Spe.d
(4 25)
149151(All)
Idl Porls:
14925)No 5
ldl Port.04-4tight.(5705, ! v,I'J
W-I A $2.00
Throttle tr~vel
(4925)restricts
Throttle VolvIr m
4835-5/555705-574S) Moin venturi, w.~ inch I D <I, n venturi, I -I / 1b inch I. D.
(4835-492S·574 ) Oi 0 ce ftom floal (at froe end) at chomb"r cov r, when needle i5 seo ed to be '12 inch
mInus 1/b4 !515S- 70S) -Ye inch
(All) Outside, none Inside belence vent tub above volv 13/64 inc~ I. D,
rAil) 5quare var le ..1 needle. (z.. ~·jo. 48 drill in nee Ie seat
Gesoline Line Connec;tion: (483::"'492S-51 5S) Com ression Type nipple, 5/ Ib nch (5705-5745) 5/! 6 inch -velltherhead nipple
Jat Tube: {<IS -515 ·5705-5 4S! Vertic I iet size, .035 inch diametar
at size. o. 72 dri I. (483S·5155570S-5745) By-poss In body. size No. 51 drill.
By·p&.ss in body, Sil Nc'. 56 drill. E"onomlZer i t sice .0 45 10 .0555 inch di~meter.
(All) U er port diamal r No, 44 drill. 4835.5 155·570S-5745) Low r port diameter, o. ~ ril.
Lawer port "iometer No. 52 drill (eorly production); roll!1 e proo"dion).
Opening: (4835-4925515 -5745) Top of lowar porl 0 .048 Inch ebove top edge of valve w;lh v~l"e do'ed
T(, of I"wer port .0 I /). 10 _070 i ch above top edge witf, v~lve c1o~ed i1Qh .
FOR RE,AOINGS BELOW, VIEW CARBURETER WITH
L ve" (-18' ~ 5S 570. 5745J At lefl. In center of points tow r ~ vou
At lefl I" c-t'., .f vd f-"i' I" v ,rd Y0U en a.irr"rr spee Ie 'l pr0"irn,t",y 60 mph
: 14835 5155 70~ S74S) Opens ithi O· m • .. p nd'c"1 t,
Mot r Tune-Up Be Accurate! Always Use CAUTIO Change worr. or lealy flange 9a,kets. lighten m nifold bolts and
M "U. S.•".. Septomb r, 19 Reg"nled AgrH 1943
CHEVROLET 1941-1942-1943
Ca,ting No, 421 on fac of flange of 4835-5155-5705-5745; No. 432 on 4925
DOWN-DRAFT CARBURETERS Nos. 483S-492S-515S-570S-574S-L1ST PRICE $12.00 exchange allo......nc. is daducted from list if buyer turns in carbureter which is replaced by ..ny of the ..bove carbur.t....
CARBURETER SPECIFICATIONS For Chevrolet Six Cylinder Engine: 31h Inch Bor., H'4 Inch Stroke
V..cuum 5park Port: (4835.4925-5155.9451 type .ize, .041 to 125. Bottom of orl 000 10 004 <,bov to of .. Ive. (5705) None.
Idle Screw 5e.. t: IA ) Sfz No 52 drill.
Set Idle Adjustment Screw: (All) 11/" I 2'/. turn, op '1. For richer mi:dur€'. 1urn (crew ut. On not "Hempt te. idle ngine below 350 f.p.m.
Outer Nonie: (Alii In primary ventu.ri, angl' 30· Disch", e size, .125 inch diqme1or.
tnner Nonie: (AI) (5 a> in out", nozzle) 120 inc~ : 0 Nonie Retainer Plug: 14a35 ~IS5-570S·5745) Jet size. No. 31
drill. 1492Sj Jot 'il~ No. 53 drill. Metering Rod: (4835-574S-CIVILIAN VEHICLES) Economy
~tep .067 ir.c diorr,ett;r. Sec()rd STc 'dOer .. .062 inCh
diom tf'r. Thi ..d lep 6 ere "c _060 (~d'~'T 1f,;1. Pc t
,tep .046 ;~cn diom.. t r. enot~ 3'Js ·ne.he<.
(483S-515S.570S-5745-MILITARY VEHICLES) c<.Ot, ....· t .066 inch ditlme+ r. S.. cond (,'(0' p:.(( t"C. .0:;, inc!-'- dio-n t~r Power. OF .042 iocr, dl n'1('t.,r. La gt, )';, 'n ,"os.
14925) Economy' _p .0645 inc d'dm et. S" cn ,t, -O~ ;ncr diarnL·ter. Third step ~il ere to .061 in dii" melt:,. ~. "",,!
Ip .046 inch diom"l",r. Leno 3:;1a inches
Metering Rod Jet: (4835-5155-5705 57 S) Size, .093 inrf diom. eter (492S) Si,e, .0835 in h d,ametet.
Metering Rod Setting: (All) U,e g,lUga, port No TI0'1-2" (2.795 inches).
Accelerating Pump: [All) Low tessur iyp with non "diU' ..ble .tro~e. iAlil Di,c erg.. ,et sir No. 72 drill. (All) Inlake disk ched plug. SlZO. o. 62 drill IBa~alite d ..~l IAil) Di~ch.lHqe dl>l chock plug. sIze No, 40 dr.!1 IBross d,s l
FLANGE DOW AND FLOAT CHAMBER AT RIGHT
Choker: ( .... 11) tn "horn s ml automatrc Butferfl y typ Llffset ng' d alve
Cho~er Leven: IAPl At laft M"nu"lIy porated. I. ient r f T- n'1, inl I.J Wrj
Tube upport Bradet: (All) At leli o~ ai, he,rn.
Idl. Adjustm.nt Screw 5etting
1V4 to 2'/4
Turns 01'
Feel r Gauges!
test compression bef
Use Seon TIming 19h1 or Tim,og Ugh!
Bre ker o~nf1. to ..pon' bofor. lop
de d ceftfer
SetSpar~ S t Valves-
Plug Gop Bre..ker Point Int..L .006 .008
.040" .018' a~dust .013"-.015"
CARBURETER ADJUSTMENTS If carbureter loads up a ter ~onsi er"bl" serVICe, f10M level
sh uld checked. Wedr on lip of flo"l lever wi!! rise float 10veL FIe. 1 level mdY be re~ t by bending lip a float lever down to a's float levei or bending I ver up to lower float loveI Only VNy slight bend " needed
If motor stalls while idling, ,.•et ,die oOlustment screw and 'hroltle lever ddiusting screw. If these a lu.tment; do not corred tt.e trouble, remov low speed jet tube and dean thor Qughly with com ressed oir Exam,ne dnd see that tbe eats gasol," .1ight in body C sting, 0 Md bottom. If not, -apldee with , new tube of ;<kntic,1 pecificllhons NEVER CHANGE A LOW
P No. 1A· t7 2·104 3 -3935
-4265 3·4705
6-3745 7·107 11.147 11·1735 118·12 118·16 11B·25 118·27 118· 2 llB·16-l 11 B·171 12·2745 14·2685 14·2705 20·22 20·26 20·29 20·45 20·71 21-455 4·15
2/;.335 30·20 30A·40 39-10 39·11 48·43 S3 ·225 61.96 6 ·91 61.128 61-200 61·23 61-242 61·250 61-281
·101 S 63·35 63·44
PEED JET TUBE FROM NE CARBlIRETER T
24·15
~ 61·97 61·128
@ 20·71 21.455
115.72
\J 11.147 11.1735 118·12 118.16 118-25 118·27 118.62
da.., 9" to pi nge r leather.
101-144 105-/1 105A-8 f05A·13
136-27 136-19 136·20 136-48 136-50 136·~9
NOTE: Pi.... ~re shown here 'or identifieation only. Cheek co.....cl nu..mber and price in Ii.t giv.n below.
tV 122-455 122-735 129-18
I' , 48-43
75·485 101·10 TO
75·508
20-22
, 39·10 39-11
1-42-43-Carbur ters 4835-4925-5' 55-5705-574S-List Pric USE FOR MILITARY VEHICLES ONLY-CARBURETERS 4835-5155-5705·5745
Gasket Asst. 17 A. 30c; Repair Pilckage 1336, $~.95
U5E FOR CIVILIAN VEHICLE5 ONLY-CARBURETER5 4835-4925·5745 Gasket Asst. 138A, 35c; Repa,r Pkgs.: (4835-5745) 1089A, $4.95; (4925) 1091, $lA5
PART NAMES BOLD TYPE, LISTED BELOW, INDICATE CONTENTS OF REPAIR PKG
14-270S, 30A-40
30·20
~ 12·2745
120 95 I 0-1155
25·335
IA·17
ANOTH
150A-15 156-13
12.00
PART Used OnNAME Flange gasket Thl'lIl tho VEl v .. __ ... ._
11 .\ II
Tllnllllt, ~h,trt and h~ "" "l..... :--(·ll1bh (~ufJl·n.;('d'd by' J-J7(1:;).. (Hi::~-;-,I',:-i)
Thrat I,· sl". t and I( v :1"~ (I~I~::;) ThrrJtth' ~hafl anti lo\"vl"
:l~~('nlhly (18:;~-,;t.-)S-'·1l0:--i-.-,7l~)
;\ ir IWI'l1 II.S...mhl;. All Chol«>r vul e II Low !'I"",,d jd. __ .. . .._ .. d~12:;)
Low speed jet ass'y.. ( 18 ~-.,1.,.·· ..7'1g-~'j::;)
List Pric $0.05
.10
.60 .60
-70 2.75
.20
.20
.30 Rivet plug ._. __ _._ _. All (ii .02 Purnp jet pas8a!tC 11lu '___ .. ~\II .10 Disk 111'('1 lI' ••• ",lug . ..AII .10 Nonie and idle pa sage plug.. .AlI (~) .10 ftivpt 1,1111; __ . .. __ ..... .. ... _ \11 .02 Nozzle plu (1838-01 -1i70S-~,1.jS) .10
zzl" lug- .. Nozzle ssembly (. 10k r n~~ nhlv . ..
hok.· 1111 l '11 I· \' 'r a'~ /IIbl .' edl sent gasket ..
·.II~I ri f; rllli j 1 J; k·f Pum cylinder gasket-upper Nozzle gasket Air hor gasket . .. _ "'I".t anu I"n'r :,~", ,"bl"Float lever pin.. ..' Needle 1 d seat asselflbly 5tra ner gauze hilt. u· l<::tnlt'nl ~'''t \\ ("ulk' '·ah· ...' a1t:I('llill:" Sf'r't'''' Throttle valve attach; 9 screw Pump Jet, 72 drill Pump lever, selllbly l'UIl" .prill" \lfjll~lt" "',., I"
Co nectOr rod spring 1·llIn~I·". fig . rl, 1-. r I\"(I 'pl"ill>: .I\h,(prin r rod f.'}Il'ili
l'lltn 0" '1.,·i I.~ (~UJl J'UtlJ\1 {'IlI11HTto,' Jill I
Uhf .·IOltlT) ;1'- 'ulltl \ pring retainer'
I·:, I .I,"'r rillg
'I"'in
In l;t-~Ol))
(1~2 ) .10 ...\11 45
\ II .35 I II .40
..\I! 05 .\11 .05 \11 05
_\ II 5 \ 1I .05 \II .80 \i1 05
.111 80 Ii 10
\11 ~O \11 L.') .! tor .05
.\Ii I~l .. for .05 \11 \ II
_... 11 . I. \11 \II
_\II \1
... ,;ril}g' . (:>70:-':::-· •• 1 ) \ II \11
I!
15 30
.10
.10 05
.10
.10
.10
.10
.10
.2:;,
.05
. 5
Increased resistance n ':Jot ,hroHlc indicd'e, d clogged pump jet. Pumo iet shculd be removed dnd cleaned with com ressed oir, which, in ny Cdses, ",ill re'TlOVe the dirt or lint. Howl'ver. it is USUd y advlsob,e t repla.e tn pump iet, as iT, cost is nomin"/. All jets a d ball ched' rust e
Poor acceleration may b due to d or. ther 'n acee erating Dump, carro ion in
or cracked cylinder crdcked plunger cuo (parts which moy be replaced at "MII emoved from cylinder, always use load"
117·92
.'150A·10
Part No. 64-725 75-485
75-::08
75-517
75·518
75-562
101-10 101· 8 101 121 101·1435 101-1445 105-11 105A. 105A ·13 114-155 115-72 117 -92
18·43 120-495 120·115S
121-67 122-455 122·738 129-18 136·19 136 20 136·27 '~6-115 150A·l0 150A-15 166- 13 158.47 163.14
PART NAME Plunger and rod assembly
Used On , II
Metering rod-standard-CIVILIAN VEHICLE5 ONLY- 111;,"-.00;" to .Ofi~" -.U62" til .1)60" -.0 " .. (5uperseded by 75-562 on Military Vehicles only) (4835·5745)
.\ll't.eriu.K rod ~r,llldal'd· ,O(H:i'·-.(Jtll~I"
to .OGJ"-.UI.i;·:" to .l)61 H -.'Jt6" (t~,:!~"' .Ivlt..'l'ing· I"od-I l-'iz(~ It'illl-CIVILIAN
VEHICLE5 ONLY .11!;S"-."6S" '" .Oli,""-.Oti:;" to .O'iJ"-.UI~I" (-H~:tS-:)jl:-:1
.\ll·tl't'il'~ I'od-I siZtO Il'.lfl .Oli:,;j" -.11(;5:-." to ,O,4:\"-.III,il:.·' to HI;t7:,"-.U~·I" (1!1:!~1
Metering rod-standard-MILITARY VEHICLE5 ONLY-.IHili"-.06(;" 10 .fJ~8·-.0 l~" (4835-5155-5705·5745)
\ r ("lamp cr.. ... .... ... \11 Throttle shaft arm claml' H\'I"ew............ ,\11 I'll ttle Ie" r dju th" <:' ..... ~\II .\ ::If>hin}.! 'r",\y and \\"a~hcr as.', \il
ttaching screw and washer ss'y'- ...All 'J ubc C!:Ullr 'C ~\V II 'rll e <I: mp rlU t _. All Flitl<;c nU ..\11 Throttle sbatt arm and ser w ass'y \11 Throttle Dnnector rod _ II ....HtJueclnr iiI k -:-i1-:-:') f 'uS f.'IJ ~r ... .. \ II
J. tl rlu -r t·od Jf<'t ~.) .. n8~i:;·' 1.1'.. f 4~:!.·} MeterIng rod jet as emblv
ll~' .. · IlL (Pt::"'i-:il.IS-~I-;II~-.-,1i:-'I
8 wi cover Q.aske ... _ _\11 Intake dIsk check assem Iy I! Dischiu'ge isk he k assem Iy \ II Meterinll rod disk
TPlug wa9her (".,11;"<1 . Plug washe, (c hl<'.tl) ·PI 9 Wit her (,'(,t".'al)
Do 1 cO\·· and ("nun Pin sTIng Pin -spring
; . Iii ntPlllL 11a.· Jill' fittllll;: Felt p king
seated 9asolone-t'9h .
ed or wor~ plunger pu p cylinder, loose or b nt pump arm
cost). If plunger is tool In reasse'T1bhng
4835-4925
136-50 (tl i') \]J II
List Prlc
70
.30
.30
.30
.30
.30
.05 OS
.05 05
.05 ,05 .05 .05 .20 .25 .10 50 30
.30 .10 .25 25
.02 .01
136-49 (O"t) All (:!) 01 136-48 (0 I) - II (") 01 r hn.rt & s \ \ I! 1.25
1I o .Ot ,20 20
.05
-I :t ... l·(·t . (j tna..rl,;·d IIlU~:t lit· ,":/lc1k"tl in ~ll pron "lenaturc,1 }('olwJ f\1r" Ii Jl1J1Ul(l.• inslnll d un arl, and ltit dry) lure u. tllg'.
I. 'tH.,: 'r11 ll", ur at " cOl/it'al plug \\ 'l hI r, 111 uJd h {icH'rr )In''11 h~ ~l lP or .-Eo. l iII .':1:;tirr~ NOTE: 5mall figurl!l preceding Ii t pric 'ndic'1te "umber of pioce used in one carbu,."ter Wher numbers do ot appear
before prices, only o"e is uaed. l '1)'1'1 II 1'lpl
I 1'1 " dill! -" .. (olll'oll.lli,,:;1 Itt·hl lit n.,)
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