1950-51 stromberg carburetors 23

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1950-51 stromberg carburetors 23
1950-51 STROMBERG CARBURETORS
STROMBERG MODELS BXVD-3 & BXVES-3
Part No.
MODEL BXVD-3
380249—Dodge, All U. S. Cars with Synchro-mesh Trans. (1950-51)
380253—Dodge, AU Can. Cars with Synchro-Mesh Trans. (1950-51)
MODEL BXVES-3
380251—Dodge, AU U. S. Cars with Gyromatic Trans. (1950-51)
380268—Dodge, AU Can. Cars with Gyromatic Trans. (1950-51)
•CHANGES, CAUTIONS, CORRECTIONS
CARBURETOR IDENTIFICATION (CODE) NOTE: Code number stamped on
bowl can be used to identify models with various production changes as listed
below:
BXVD-3 No. 380249—Code 3-93, 3-93A, 3-93B, 3-93C & later.
BXVD-3 No. 380253—Code 3-97, 3-97A, 3-97B, & later.
BXVES-3 No. 380251—Code 3-95, 3-95A, 3-95B, 3-95C, 3-95D, 3-95E, 3-95F 8s later.
BXVES-3 No. 380268—Code 3-103, 3-103A & later.
•MAIN BODY & VACUUM PISTON PRODUCTION CHANGE (All Carburetors):
Beginning with early 1951 production, new Main Body casting with new longer
Vacuum Power Piston used on all carburetors listed above. First type Main Body
wUl not be furnished for service and new type Main Body with new longer
Vacuum Power Piston must be used when replacement of main body required.
Old and new type parts can be identified as follows:
Main Body—Bottom of by-pass Jet boss (below float bowl) Is 7/16" above
bottom of dashpot on first type main body, and is even with bottom of dashpot
on new type main body.
Vacuum Power Piston
Part No.
Over-aU Length
First Type
P-24201
2 5/32"
Later Type
385527
2 9/16"
NOTE—When new main body and new vacuum power piston installed, code
number stamped on carburetor should be changed to show the latest number
(code when this change occurred in production) as follows: No. 380249—Code
3-93C & Later, No. 380253—Code 3-97B & Later, No. 380251—Code 3-95F & Later,
No. 380268—Code 3-103A & Later.
•BXVD-3 & BXVES-3 CARBURETOR PRODUCTION CHANGES: Later carburetors have various parts differences due to production changes as listed below.
Correct type parts must be used on each individual carburetor.
See "Main Body & Vacuum Piston Production Change" also (above) for new replacement parts for these early carburetors (as used in production on later carburetors).
U. S. BXVD-3 No. 380349 Carburetor Changes
Parts Changed
Code 3-93 Cart. Code 3-93A & 3-93B Carb.
Main Body Assembly
385057
385386
Main Body Gasket
P-24037
385384
Throttle Body Assembly
382902
385387
Main Body Insulator Spacer
384677
385385
Canadian BXVD-3 No. 380253 Carburetor Changes
Parts Changed
Code 3-97 Carb.
Code 3-97A Carb.
Main Body Assembly
385057
385386
Main Body Gasket
P-24037
385384
Throttle Body Assembly
382902
385387
Main Body Insulator Spacer
384677
385385
U. S. BXVES-3 No. 380251 Carburetor Changes
Carburetor Code Nos.
Parts Changed
3-95,3-95A, 3-95B 3-95C3-95D
Main Body Assembly
385166
385372
Main Body Gasket
P-24037
P-24037
Contact Piston Spring
385162®
385155©
Terminal Block Assy
385133©
385133®
®—Marked by Blue color. See Kick-down switch change following.
<D—Not colored. May be identified by free length of 1 3/8".
©—Includes No. 903899 Wire Clamp Screw & No. 384450 Lockwasher.
23
«
3-95E
385372
385390
385155
385438
•EARLY BXVES-3 KICK-DOWN SWITCH CHANGE (For Improved Transmission Performance): On first Code 3-95 & 3-95A carburetors, original No. 385146
Kick-down Switch Contact Piston Spring should be replaced by No. 385162
spring which is colored with Blue dye for identification. This new spring raises
kick-down speed limit to 35-43 MPH. (was 40 MPH.). When this change made,
stamp letter "B" next to stamped code no. 3-95 on bowl cover near fuel inlet
(this spring used in regular production on Code 3-95B carburetors).
—CAUTION—Do not use this No. 385162 spring on Code 3-95C and later carburetors
(have new uncolored spring with free length of 1..3f8").
DESCRIPTION: Single barrel downdraft types of same design as carburetors used
on previous models except for new Kick-down Switch (BXVES-3 only).
Slow-Closing Throttle (Dashpot)—Dashpot and piston In float bowl linked
to throttle lever with adjusting screw on control lever under float bowl. See
complete "Dodge Slow-Closing Throttle" In previous release and note adjustment directions below.
Kick-down Switch (Model BXVES-3 only)—Same design as switch used on
Chrysler cars with Stromberg carburetors. See complete "Chrysler 8s DeSoto
Kick-down Switch" in previous release and note adjustment directions below.
ADJUSTMENT & SERVICING: See complete "Stromberg Models BXV-3, BXVD-3"
Carburetors in previous release and set these carburetors to the foUowing specifications :
Idle Adjustment: Idle screw set for smooth running (between inner Lean or Missing point and outer Rich or Rolling point).
Idle Speed (BXVD-3—Synchro-mesh Cars)—6 MPH.
Idle Speed (BXVES-3—Gyromatic Cars)—450-475 Engine RPM.
Accelerating Pump Capacity: 11-14 cc. per 10 slow strokes (pump travel V4-9/32")
with pump set for medium stroke (middle setting).
Recommended Setting—Center hole (medium stroke) summer, outer hole
(maximum stroke) winter.
Economizer Setting—Valve opens with manifold vacuum of 3-5" corresponding
to car speed of 65-70 MPH.
Float Level: Fuel level %" below top edge of bowl with 3 lbs. pressure. NOTE—Use
Tool T-24733 to adjust float.
Throttle Valve Setting: Edge of valve Flush (plus .006", minus .000") from #58
drUl in Idle port, and flush with two #58 drills In vacuum spark ports.
Fast Idle Setting: No adjustment required.
Slow-Closing Throttle (Dashpot) Setting: (BXVD-3) 5/16-11/32", (BXVES-3)
13/32-7/16" piston travel with aU slack removed from linkage.
Adjustment—Turn adjusting screw in lever under float bowl OUT to lengthen
stroke or IN to shorten stroke.
Kick-down Switch Setting (BXVES-3): 5/32" min. switch plunger travel up to
point where throttle valve is wide open, and 1/64" over-travel of the plunger at
this position.
Adjustment—Bend tang on throttle lever which contacts switch plunger.
SERVICE PARTS: Gasket Sets—Stromberg No. J-5968-G (First No. 380249 Code
3-93 Carbs.), No. 382369 (Later No. 380249 Code 3-93A & Later Carbs. and all
No. 380253 Carbs.), No. 382371 (AU BXVES-3 No. 380251 & 380268 Carbs.).
Repair Kits (incl. Gaskets)—Stromberg No. RK-148 (First No. 380249 Code 3-93
Carbs.), No. RK-159 (Later No. 380249 Code 3-93A 8s Later Carbs.), No. RK-150
(No. 380253 Carbs.), No. RK-149 (No. 380251 Carbs.), No. RK-161 (No. 380268
Carbs.).

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