Quote:
Originally Posted by Bergycheese348
Good to know the abbreviations… but it’s going to be interesting to figure it out beyond just this as the pitch (distance between threads) is different between the two as one is more coats and one is more fine.
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It's tapered. Just clean around your pressure switch, yank it out, and screw it into the adapter to test. If it doesn't go more than a half turn, it's NPT.
If you haven't ever done this, don't go all hamfisted when you're screwing the pressure switch back into the timing cover. Just go a smidge more than finger tight, and start the engine. If it weeps, clean it and go a little more. You may be surprised with how little torque is required. Don't worry about the connector until after you're satisfied with the tightness.