The fitting for the return line is a 3/8 NPT (I matched it up with the one at NAPA)

 

what's 3 divided by 8?

what's 1 divided by 2?


how is this possibly going to work out?

 

For a 3/8" NPT thread, you need a 9/16" bit.

 

thanks for the info guys.

 

hope you're not insinuating that you don't drill a hole bigger than the size of the NPT fitting you're installing...

1/2" NPT fitting = 23/32" bit
3/8" NPT fitting = 9/16" bit

both of which are larger than the fitting/tap you're aiming for.

for the record, doesn't make any friggin sense to me either.

also for the record, to the original poster, learn how to use google and figure out what size drill bit you need yourself... don't ask the guy behind the parts counter at napa... savington's right. if you can't figure out what drill bit to use for a 3/8" tap, or where to get some mineral spirits, you might want to rethink boosting your miata.

 

i keep forgetting NPT isn't on the same scale 32sec scale.

 

C'mon man what's knowing drill size and tapping **** have anything to do with working on a miata or boosting it. I may not know a lot about boosting, but I sure do know how to do everything to a miata. The point is I didn't drill the hole bigger than anything. I just swap the oil pan out to avoid keep going to the parts store. Yes it's a lot more work, but it works. BTW I'm not from here and I didn't know what mineral sprints was, but now I do.

 

sorry man, you just caught me on a rough morning. no hard feelings.

you get it all sorted out? how much fun was swapping the pan? ;-)

 

It wasn't too fun, but it got swap out, but I'm sure taping it like you guys said is a lot easier, I'll keep in mind for the size of the drill and stuff for next time though.

 

how long did it take.

fwiw, i've tapped 5 pans now on the car. probably about an hour top, combined

 

have you seen my baseball?

 

it took probably about an hour or less.