How to test oil pressure?

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Author Message   Dave Hudzik (Ctlr) New Member Username: Ctlr Post Number: 11 Registered: 02-2004 Posted on Wednesday, February 11, 2004 - 07:02 pm:    I know you do it with a guage but where does the guage thread in?? Is it where the sensor is?   Gabriel Guay (Gearhead) Member Username: Gearhead Post Number: 80 Registered: 04-2002 Posted on Wednesday, February 11, 2004 - 10:28 pm:    If you have a 4.0 with a serp belt, the oil switch comes out and an adaptor with gauge goes in. It's a hard to find 13mm 1.25 tread with o ring seal. I set-up a dash mounted machanical gauge and couldn't find the adaptor so I made one out of an extra pressure switch. Try the dealer, Part# LRT-12-052, Sometimes they will have one but kind of expensive to buy. I don't know if the v belt motor uses the same 13mm 1.25 thread. GG