About Your Porsche's Fuel System - Solex

Solex workshop manual pages for Porsche 356 fuel system reference.

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About Your Porsche's Fuel System - Solex

About your Porsche's Fuel System - Solex

These are copies of pages from a Porsche Workshop Manual Supplement for Solex carburetors. This information applies to all Porsches using the Solex 40PII-4 carburetor. If you don't have a copy of the manual you will find this information helpful when installing, tuning, or trouble-shooting your carburetors.

There are a number of other issues to consider before having your carburetors restored: Do you have a fuel filter? The "stuff" from the bottom of your old gas tank may be clogging passageways or jets, resulting in intermittent performance. And that will continue with your restored carbs! Check your fuel pump pressure. This is particularly important with the Zeniths VERY IMPORTANT, check your distributor! Timing, most importantly, consistency of timing, to making sure your engine is performing correctly. A petronix addition to your distributor may help if you have a 12 volt system, not with a six volt. linkage connected properly, from the fuel pedal to the carburetor. Valves, rockers, pistons, all functioning well

Click on the specific page for an enlargement. You can always print the page out if you need to.

Do you have the right carburetor set up for your engine? check these specifications to find out what is correct for your original engine.

"Exploded" parts diagrams of the carburetors are available here, so you can see what parts may, or may not, be missing, need to be replaced, or are broken. Those diagrams will also help you in ordering parts if you want to repair or rebuild your carburetors yourself. Most of all, these diagrams are essential in making sure all parts are re-installed in the correct order.

Remember you can call or e-mail 356 Carburetor Rescue if more help is needed.

carburetor specifications

Disassembly and reassembly of Solex 40PII carbs

Adjusting accelerator pump

Float level

air cleaners

TroubleshootingSolex Carbs

Carb linkage,Hand Throttle& Bell Crank

PE 15057 Fuel Pump

including testing pump pressure & removal-

Click any page to enlarge

Solex fuel system workshop manual page SF 1 — title page for the Solex 40 PII-4 twin throat downdraft carburetor with a labeled external view of the carburetor body and numbered parts key
Solex fuel system workshop manual page SF 2 — operating principles text with a labeled schematic cross-section view of the carburetor
Solex fuel system workshop manual page SF 3 — accelerating pump and float chamber cross-section diagrams with numbered parts keys
Solex fuel system workshop manual page SF 4 — idle metering text with a sectioned diagram of the idle circuit and labeled jets
Solex fuel system workshop manual page SF 5 — intermediate metering and power metering text with a sectioned diagram of the metering circuit
Solex fuel system workshop manual page SF 6 — paired partial-load and full-power cross-section diagrams with acceleration system explanation
Solex fuel system workshop manual page SF 7 — acceleration circuit cross-section and a detail diagram of the check valve assembly with return flow port
Solex fuel system workshop manual page SF 9 — carburetor specifications table listing jet and venturi sizes for the 1600 S-90 engine
Solex fuel system workshop manual page SF 12 — disassembly and reassembly procedure text with a photograph of a carburetor being worked on by hand
Solex fuel system workshop manual page SF 13 — venturi installation and idle speed adjustment text with two photographs of carburetor servicing
Solex fuel system workshop manual page SF 14 — carburetor synchronizing procedure text with a photograph of the P-75 adjustment gauge mounted on a carburetor throat
Solex fuel system workshop manual page SF 15 — accelerating pump adjustment procedure text with a photograph of a Solex-stamped carburetor
Solex fuel system workshop manual page SF 16 — injection nozzle path diagram and float level checking procedure with a photograph of a carburetor
Solex fuel system workshop manual page SF 17 — float level readjustment and air cleaner servicing text with a photograph of a twin carburetor
Solex fuel system workshop manual page SF 19 — carburetor service diagnosis table of malfunctions, possible causes, and remedies
Solex fuel system workshop manual page SF 25 — carburetor linkage, hand throttle and bell crank text with a linkage diagram and a throttle position graph
Solex fuel system workshop manual page SF 26 — carburetor linkage and hand throttle adjustment text with bell crank diagrams and a throttle cable diagram
Solex fuel system workshop manual page SF 27 — labeled schematic cross-section view of the Type PE 15057 fuel pump with numbered parts key
Solex fuel system workshop manual page SF 28 — fuel pump general operation text with a labeled cross-section diagram of the fuel pump and distributor shaft
Solex fuel system workshop manual page SF 29 — exploded diagrams of fuel pump components with numbered parts keys
Solex fuel system workshop manual page SF 30 — testing pump pressure and removing the fuel pump text with photographs of the fuel pump on the engine
Solex fuel system workshop manual page SF 31 — fuel pump installation and reconditioning text with an exploded diagram and two halftone disassembly photographs
Solex fuel system workshop manual page SF 32 — fuel pump reconditioning and reassembly procedure with photographs of pump disassembly steps

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