Plugging Distributor Vents (1 Viewer)

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Does anyone have sizes for the holes? I’m currently trying to find “breather” grommets to run vent lines but haven’t been able to get a gauge on them. Any help is appreciated!
 
Can't help with the sizes. I drilled a couple out for plastic fittings and at least some of the sizes are listed in post #6 in this thread. I think later at least one other person did it with metal fittings and the sizes might be listed there, but I could not find the thread.
 
I got some hosing that I should be able to whittle down and o-rings to silicone in place. I’m sure it’ll do the trick, was just hoping to get a close fit. I think I wasn’t far off with 1/8 in.
 
I got some hosing that I should be able to whittle down and o-rings to silicone in place. I’m sure it’ll do the trick, was just hoping to get a close fit. I think I wasn’t far off with 1/8 in.
I just went to O'Reily's for some rubber tubing. They cut me 2-3 very small example pieces that I used to measure. I think my OEM distributor cap has 1/4" breather holes. Hope this helps!
 

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