NUMBER: 67-62
DATE: 11-20-67
GROUP: Fuel
SUBGROUP: Zenith-Stromberg Carb

MODELS: Alpine V & Arrow
SUBJECT: Zenith-Stromberg CD & CDS Carbs: Change Of Float Material

A modification has been introduced on the subject carburetors, changing the float assembly material from compressed rubber to nylon.

With this change of float material, some float settings have been altered and in some instances the needle valve washer has been changed in order to maintain the correct fuel level.

Even though it is not recommended that the original float be changed, it is possible, but the float setting and needle valve washer, where appropriate, must be changed as per instructions:

CARBURETOR: – Rootes Part No. – Zenith Reference
ALPINE – 1801190 – 3059
ALPINE – 1801191

ARROW – 1801295 – 3093
ARROW – 1801296 – 3094

RUBBER FLOAT: – Needle Valve Washer Part No. – Float Setting

ALPINE – 5044255 – 18.5

ARROW – 5057814 – 15.5

NYLON FLOAT:

ALPINE – 9077071 – 17.0

ARROW – 9077071 – 15.5

J. J. Rivers
Manager – Service & Parts

Related posts:

1. Bulletin 67-44: Alpine V, Minx VI & Arrow New Oil Pressure Relief
2. Bulletin 66-2: Tiger 260 Carburettor Modification
3. Bulletin 68-12: Arrow & Alpine V Corrosion of Temperature Sender
4. Bulletin 66-6: 1725cc Oil Pressure Relief Valve Change
5. Bulletin 68-3: Alpine, Imp, Minx, Arrow Cylinder Head Bolt Tightness