Morning all,

Can any of you tell me what the thread size is of the vacuum take off on a Pinto-webber manifold (its the hole positioned on the inlet for cylinder 4)

i would hazard a at 1/4" NPT or 1/4" BSP but im unsure.

Can anyone help?

All the best

Alex

Can't answer the question, but if you try a coupling from air tools they are normally 1/4 bsp I believe, so if it fits then there's your answer

its 1/4" BSP for future reference!