SKULLYOTA
NOOB
- Joined
- Jun 30, 2023
- Member Number
- 6564
- Messages
- 499
The poor man’s method of putting a turbo oil drain in a sump pan too.Saw this trick on horsepower TV or whatever it’s branded as this week.
I wanted to add a NPT fitting to my air filter as a clean air source for the PCV.
I started with a 3/16” pilot hole, followed by a tapered punch. Opened to nominal size of 21/64” and run a tap through it.![]()
![]()
![]()
![]()

