Carburetors & Parts

Carburetor, Solex style, 40 PII-4.



Choke: 32mm
Main: 125mm
Air:180 mm
Idle: 55mm
Emulsion tube:F11

Fits:
Porsche 356 B Super 90 1.6 01/59-12/63
Porsche 356 C SC 1.6 01/63-12/65
Porsche 912 1.6 01/65-02/70

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

61610810

The product you are viewing cross references to these numbers

Carburettor float lever pin Solex. 



Fits:
Porsche 356 - 1950 to 1955
Porsche 356A - 1956 to 1959
Porsche 356B - 1959 to 1963
Porsche 356C - 1965 to 1965
Porsche 911 2.0ltr - 1965 to 1968

Click 'Zoom in' for large parts diagram.
Diagram ref no 22

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

61610091100

The product you are viewing cross references to these numbers

Carburettor Fuel Level Measuring Device – Solex / Zenith with Zenith Injection Quantity Tester

Accurately check and set carburettor fuel levels with this specialist measuring kit for Solex and Zenith carburettors.

Fits:

• Porsche 912 SWB 1965-1968 (F)
• Porsche 356 1950-55
• Porsche 356A 1955-59
• Porsche 356B 1959-63
• Porsche 356C 1963-65

Designed to measure the fuel level while the carburettor is operating, the kit uses a transparent sight glass connected directly to the carburettor. This allows the actual fuel level inside the float chamber to be viewed and compared with the manufacturer's specified setting.

Three rings on the sight glass provide clear visual reference points when checking the fuel level.

The kit also includes a special injector for Zenith NDIX carburettors, allowing the accelerator pump injection quantity to be measured according to the relevant workshop repair procedure.

What Does the Carburettor Level Measuring Kit Do?

Correct fuel level inside the float chamber is essential for accurate carburettor operation.

If the level is too high, excessive fuel can enter the engine, potentially resulting in an overly rich mixture, poor running and increased fuel consumption. If the level is too low, insufficient fuel supply can contribute to hesitation and weak running, particularly when greater fuel delivery is required.

This tool allows the fuel level to be observed directly while the carburettor is operating rather than relying solely on measurements taken with the carburettor dismantled.

The three rings fitted to the sight glass act as convenient visual references for comparing the measured fuel level with the specification given in the appropriate repair guide.

How Is the Kit Used?

Different adaptors supplied with the kit allow the sight glass to be connected to several Solex and Zenith carburettor types.

For Solex 40 PII carburettors, the extended special main nozzle carrier is installed with the main nozzle fitted into the carrier. The sight glass can then be connected so the operating fuel level can be observed.

For Solex PICT carburettors, the supplied banjo bolt and sight glass are fitted to the float chamber.

For Solex PBIC and PICB carburettors, the corresponding extended main nozzle carrier supplied with the kit is used.

For Zenith NDIX carburettors, the sight glass is installed using the long banjo bolt and supplied spacer.

Once connected, the carburettor can be operated and the fuel level viewed through the sight glass. The measured level should then be compared with the specification given in the relevant manufacturer's repair guide.

Zenith NDIX Injection Quantity Measurement

The kit also provides a method of checking the accelerator pump injection quantity on Zenith NDIX carburettors.

The supplied special Zenith injector operates differently from the normal injector. Instead of delivering fuel into the injection pipe, it directs the fuel outwards.

The discharged fuel can then be collected in a suitable graduated glass measuring cylinder and the quantity compared with the specification in the appropriate repair guide.

Please note that the measuring cylinder is not included.

This provides a practical way of checking whether the accelerator pump is delivering the specified quantity of fuel and allows adjustments to be made where required.

Why Is Correct Carburettor Fuel Level Important?

The float chamber must maintain the fuel at the correct height for the carburettor circuits to operate as intended.

Incorrect fuel levels can affect mixture strength and general engine behaviour and may contribute to:

• Rich or lean running
• Poor idle quality
• Hesitation during acceleration
• Difficult starting
• Excessive fuel consumption
• Inconsistent carburettor performance
• Poor response when accelerating

Accurately checking the fuel level is therefore an important part of carburettor setup, troubleshooting and synchronisation.

Ideal for Carburettor Setup and Rebuilding

This kit is particularly useful when rebuilding, setting up or diagnosing classic Solex and Zenith carburettors.

It provides a direct visual method of checking the operating fuel level and, with Zenith NDIX applications, an additional method of measuring accelerator pump injection quantity.

It is suitable for professional workshops, engine builders and experienced enthusiasts carrying out accurate carburettor servicing and adjustment.

Scope of Delivery

• 1 x sight glass with 3 reference rings
• 1 x main nozzle carrier for Solex 40 PII
• 1 x banjo bolt for Solex PICT
• 1 x main nozzle carrier for Solex PBIC/PICB
• 1 x banjo bolt with adaptor for Zenith NDIX
• 1 x special injector for Zenith NDIX
• 1 x Zenith fibre gasket
• 3 x fibre seals for sight glass/Solex

The correct fuel levels and injection quantities should always be taken from the relevant workshop or repair guide for the specific carburettor and application.

Solex & Zenith Carburettor Setup, Tuning & Measuring Tools

Correct carburettor adjustment is essential for achieving smooth running, reliable starting and good throttle response on classic Porsche and other vehicles equipped with Solex or Zenith carburettors.

Specialist carburettor measuring tools make it possible to diagnose and adjust areas that cannot be accurately assessed through basic external adjustment alone. Checking the float chamber fuel level and accelerator pump delivery can be particularly useful when rebuilding carburettors or investigating poor running, hesitation or inconsistent fuelling.

This Solex and Zenith carburettor level measuring kit supports Solex 40 PII, PICT, PBIC/PICB and Zenith NDIX applications using the dedicated adaptors supplied.

Gasket between floor section and carburettor.



Fits:
Porsche 911 1965-68
Only for vehicles with Solex PI-1 carburettor

Click 'Zoom in' for large parts diagram.
Diagram ref no 10

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

90110819500

The product you are viewing cross references to these numbers

Carburettor intake cloth capping pair - 7.5cm diameter
Sold as a pair

Fits:
Porsche 911 - 1965 to 1971
For 2.0ltr and 2.2ltr cars

Fuel resistant  carburettor closing cloth capping , 1 pair 

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

90110811100

The product you are viewing cross references to these numbers

Carburettors 40 IDA3C Weber to suit Porsche 911



Fits:
Porsche 911 engines between 65-73

911 standard models 1966-67 - 40 IDA Carburettor
911S 1967-68 - 40 IDS Carburettor
911L 1968 - 40 IDAP Carburettor
911T 1969-71 -40 IDTP Carburettor

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

90110840IDA3C

The product you are viewing cross references to these numbers

Compression spring for accelerator pump on Solex 40 PI-1 carburettor
Sold each - 1 required per carburettor

Fits:
Porsche 911 - 1965 to 1968

Diagram ref no 24

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

90110893100

The product you are viewing cross references to these numbers

Compression spring for Solex 40 PI-1 carburettor.
Sold each -  required per carburettor

Fits:
Porsche 911 - 1965 to 1968

Diagram ref no 10

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

90110892000

The product you are viewing cross references to these numbers

Compression spring on adjusting screw for carburettor.
Sold each - 1 required per carburettor

Fits:
Porsche 356 / 356A - 1950 to 1959
Porsche 911 - 1965 to 1968

For Curburettors

356 / 356A 
Solex 32 PBI
Solex 32 PBIC
Solex 40 PBIC
Solex 40PII / 40 PII-4

911
Solex 40 PI-1

Diagram ref no 19

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

61610099100

The product you are viewing cross references to these numbers

Connecting rod for Solex 40 PI-1 carburettor. 

Fits:
Porsche 911 - 1965 to 1968

Diagram ref no 9

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

90110891900

The product you are viewing cross references to these numbers

Diaphragm accelerator pump for Solex 40 PI-1 carburettor.
Sold each - 1 required per carburettor

Fits:
Porsche 911 - 1965 to 1968

Diagram ref no 25

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

90110893200

The product you are viewing cross references to these numbers

Carburettor Diaphragm for 911 SOLEX 40 Pl-1 Carburettors.

Fits:
Porsche 911 1965-68

Diagram ref no 25

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

90110893200

The product you are viewing cross references to these numbers

Diaphragm for Solex 40PII-4 carburettor.
This diaphragm is manufactured to match Porsche OEM specifications, used in the carburettor/fuel pump assembly of early Porsche models such as the 356 B/C and 912 (Solex 40 PII-4 systems). This diaphragm ensures correct movement of the pump or fuel-metering circuit, maintaining consistent fuel delivery, avoiding starvation under load, and preserving the original throttle response characteristics. 

Fits:
Porsche 356B / 356C (Model: 1600 S90/SC, CARRERA, 587/1 692/3A) 1960-1965
Porsche 912 1.6L 1965 - 1969 (Engine code: 616/36/37)
Porsche 912 1.6L 1965 - 1969 (Engine code: 616/39/40)

Diagram ref no 64

• Function: Flexes to actuate fuel-pump or carburettor component; maintains consistent fuel flow and pressure
• Position: Inside carburettor body or fuel pump assembly
• Benefits: Exact fit geometry, reliable sealing, restores factory fuel-delivery behaviour
• Installation: Replace during carburettor rebuild or fuel-system service; Ensure correct mounting orientation and inspect surrounding seals/gaskets.

Diaphragms in carburettor or fuel-pump assemblies are subject to continuous flexing, contact with fuel/ vapour, and ageing of elastomer materials. Over time the diaphragm may become hardened, cracked, or leak, leading to inconsistent fuel delivery, hesitation under acceleration or poor idle.

Replace this diaphragm when:
• Performing a carburettor rebuild, fuel-pump service or full engine commissioning
• The existing diaphragm shows visible cracks, deformation, fuel seepage or stickiness
• You experience fuel starvation, erratic throttle response or tuning instability
• You’re restoring your classic Porsche engine to factory-correct performance

Installing a new diaphragm restores correct actuation, sealing and fuel-flow behaviour—ensuring your induction system runs true, smooth and as intended.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

PCG10095100

The product you are viewing cross references to these numbers

Diaphragm pump complete - NR. 72 -  for Solex carburetor.
Complete mechanical diaphragm fuel pump is designed to replace the original Porsche unit (692-100-969-00) fitted to Porsche 356 and 912 engines. This pump supplies fuel from the tank to the carburetors under consistent pressure, ensuring smooth, reliable delivery across all driving conditions.

Fits:
Porsche 912 1.6L 1965 - 1968 (engine code: 616/36/37)
Porsche 356 B/C - 1600 S90/SC, CARRERA, 5871,6923A - 1960 - 1965

Diagram ref no 62

•  Function: Draws fuel from tank and maintains steady flow to carburetors
•  Benefits: OE flow pressure, reliable operation, corrosion resistance, vintage design
•  Installation: Direct-fit replacement; gasket included; torque to Porsche specs

Mechanical fuel pumps operate continuously with every engine revolution. Over time, diaphragms harden, check valves wear, and housing seals degrade, leading to reduced fuel pressure, vapor lock, or leakage.

Replace this unit when:
•  Experiencing hard starting or hesitation under load
•  Fuel leaks or pressure drops are detected
•  Original pump shows corrosion or mechanical wear
•  Performing a fuel system or carburetor overhaul

Installing a new Diaphragm pump  restores reliable fuel delivery, authentic engine bay appearance, and dependable performance — keeping your classic Porsche running like it should.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

69210096900

The product you are viewing cross references to these numbers

Diaphram Solex 40 PII



Porsche
912
1600
356
Super 90

Please note that 7101-G is ONE diaphram only

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

7101-G

The product you are viewing cross references to these numbers

Double Fuel Banjo Fitting – Solex Carburettor 
Sold each

High-quality double-sided fuel banjo fitting designed for Solex carburettors fitted to Porsche 911 models from 1965 to 1968.

Fits:

• Porsche 911 1965-1968 2.0L / 912 SWB (F) 

Diagram ref no 39 

This dual-outlet banjo fitting allows for efficient fuel distribution between carburettor components, ensuring balanced fuel delivery across the system. As a key part of the early carburettor fuel setup, it supports consistent engine performance and correct fuel flow management.

Manufactured to OEM specifications, this fitting offers precise alignment and reliable sealing, making it ideal for restoration, repair, or maintenance of classic Porsche 911 fuel systems.

Key Features

• Double-sided banjo fitting for Solex carburettor
• Suitable for Porsche 911 (1965–1968)
• Designed for early carburettor fuel systems
• Enables dual fuel line connection
• Ensures secure, leak-free fuel distribution
• OEM-style fit and performance
• Durable construction for long-term reliability

Function and Purpose

This double banjo fitting is an essential part of the early Porsche fuel system.

It helps to:
• Distribute fuel between carburettor feed lines
• Connect multiple fuel lines to a single carburettor point
• Maintain even fuel flow across the system
• Ensure leak-free sealing under operating conditions
• Support balanced carburettor performance

Why Replace Banjo Fittings

Over time, original fittings can degrade or fail.

Common issues include:
• Fuel leaks at connection points
• Worn sealing surfaces
• Corrosion due to age and fuel exposure
• Uneven fuel distribution

Replacing worn fittings ensures proper fuel delivery and safe operation.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

90110890100

The product you are viewing cross references to these numbers