Lancia Beta Forum

Technical stuff => Fuel System Carb => Topic started by: JohnFol on July 11, 2022, 10:11:13 AM



Title: Vacuum pipe intake -> car restriction
Post by: JohnFol on July 11, 2022, 10:11:13 AM
Morning all, currently working on inlet manifold and spotted the union taking vacuum to carb has has an unexpectedly small opening. It's about 1mm in diameter, suggesting a deliberate "dampening effect" to smooth out changes in pressure, or it needs to be replaced / drilled out a bit wider.

As usual, real world advice much appreciated as all the parts diagrams / images I can find either relate to wrong manifold or don't show the opening


Title: Re: Vacuum pipe intake -> car restriction
Post by: WestonE on July 11, 2022, 09:14:25 PM
Hi John

This is normal and saves using a nozzle from a MIG to achieve damping of the pressure signal.

Eric


Title: Re: Vacuum pipe intake -> car restriction
Post by: JohnFol on July 11, 2022, 09:34:20 PM
Thanks Eric. How many beers do I now owe you and others?