Originally Posted by Ziggy Dietrich
NPT is a tapered thread, so it should get tighter as it goes in. If the plug is still sticking out even though it is tight, it should just be tapped a little deeper. Both the plug itself and the tap are tapered.


I understand that, but you can't put the tap in further as the port curves off to the side.

But most pipe plugs are designed so that they tighten while still sticking out a bit. Just look at all the other pipe plugs around engine bay smile

1995 TSi AWD
11.7@119 1.8 60' - Curse of the Bad Driver
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