Solex 40PII / 44PII Adjusting screw with spring for carburetor idle speed. Porsche 356 / 912

Adjusting screw with spring for carburettor idle speed, For Solex 40 PII-4 and 44 PII-4,  manufactured to meet Porsche OE specification.
Price is for one kit, 2 required.

Fits:
For Solex 40 PII-4 and 44 PII-4
Porsche 356 B/C 1.6 01/59-12/65
Porsche 912 1.6 01/65-07/68

Diagram ref no 42 and 43.

This set combines two key components from the idle-circuit of the Solex carburettor used on Porsche 356 B/C and early 912 models:
•  Idle Adjusting Screw ( 616100927010) - a fine-thread steel screw which allows precise adjustment of the throttle-plate position at idle, controlling airflow and engine RPM.
•  Pressure/Compression Spring (61610081400) - the matched spring which seats under the adjusting screw and maintains the correct preload and return force on the idle throttle plate.

Together they provide stable, repeatable idle setting and crisp low-speed throttle transition. It produced in correct dimensions, thread pitch, spring rate and material to ensure the idle system works as intended by Porsche.

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61610092701

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