Zenith Stromberg carburetor overhaul

[JamesC]

Hi all, I thought there may be interest in seeing the before and after pictures of my restored carbs. I have a friend who specialises in such overhauls if anyone is interested in having their carbs properly overhauled PM me and I can put you in contact. The cost is lower than service exchange units and you get yours back. Thanks James

[Ian P]

They look well
Ian

[STypeR]

Great job considering what they looked like before!

[JamesC]

This is what they had done for, those who have asked -

The process is as follows:

Carbs as delivered:


Carbs removed from manifold and placed in a sonicating water bath with detergent to start the cleaning process:


Next, they are completely stripped down to their component parts.

The four aluminium castings (Carb body, dashpot, float chamber and cold-start device) are then bead blasted to remove any remaining dirt and corrosion:

Carbs are then reassembled using new parts:

• Spindle and spindle washers and nuts
• Butterly and screws
• Spindle buses
• Needle valve and seating washer
• Jet tube (set to original height)
• Needle and needle adjusting screw
• Float chamber ‘O’ ring
• Float chamber gasket
• Piston diaphragm
• Piston damper fibre washer
• Cold start device gasket
• Temperature compensator seals
• Dashpot screws

[

All bracketry and associated fixings are cleaned and zinc plated



Carbs completely reassembled and fixed to inlet manifold using new insulating spacers (if necessary) and gaskets.

[steve.n]

Dare we ask the cost?�

[JamesC]

The cost was £450, which given the amount of work seemed fair - just need to get the rest of the engine to the same standard

[steve.n]

James, I would say that is pretty good.
Steve.