Pinto 2.0 Engine Knocking

[Snapperpaul]

Another option is to fit a vac takeoff to the other runners and use a balance tube so all takeoffs go in and 1 goes to the distributor

[Jez Morton]

On 10/20/2021 at 8:17 AM, Knownout said:

Jez Morton got it spot on. My knock disappears when dizzy vacuum pipe is removed and blocked. Dizzy doesn't know if it's coming or going because only getting vacuum advance messages from the one inlet that it's tapped into. (40 dhla's)........but how do I fix it??

I fitted a none return valve that was in the sierra system, it kept the vacuum maintained on my car and stopped the dizzy bouncing.