Webcon supplied 'pump spill' valve, sometimes called a 'back bleed valve, part number 79701.
It is fitted in the float chamber of many Weber carburettors including the DCOE/IDA/IDF/ICH ranges.
It is a calibrated part from 0 to 100.
The larger the number the more fuel is bled back to the float chamber when the pump jet is operated.
The size used depends on the pump rod length & pump jet size.
The 'zero' valve is often used to eliminate 'flatspots' under acceleration & used widely in competition applications.
Sizes vary from 0,35,40,50,60,70,80,90 &100.
Weber Pump Spill Valve - Back Bleed
- Brand: Weber
- Product Code: 79701
- Availability: 41
- Ex Tax: £6.46