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What are different ways of knowing when and how far your vacuum secondaries are opening up? I know the old paper clip on the rod trick but I was wondering if there's any tricks on being able to tell while you're driving?
Re: Secondaries opening -- how to tell? (rainman69)
Drive with no hood and air cleaner? ...And a mirror mounted to see in the throats??? :jester
That's probably not safe, but it's an idea... :blueangel:
Or use the Portuguese (*) method: put some small nuts or screws on the secondary valves, and go drive the car. If the engine starts making strange noises, that indicates that the secondary valves opened. :jester
(*) replace Portuguese by your favorite joke group: Polish, redneck, Belgium, etc.... :D
Re: Secondaries opening -- how to tell? (Pedro'74)
Instead of a mirror find one of the local neigbor kids, not yours, to sit in the engine bay and hit the highway. Tell him you'll give him/her a cookie for helping you out. :lol: