Vs v8 mat sensor thread?

Holden/Delco Tuning. ALDL, OBD 1.5. Circa 1989 to 2004.
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oss96
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Vs v8 mat sensor thread?

Post by oss96 »

Does anyone know the mat sensor thread pitch that screws into the intake manifold on the injected 5litre? M14×1.5? Or is it a npt thread? I've heard conflicting info and want to be sure
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Holden202T
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Re: Vs v8 mat sensor thread?

Post by Holden202T »

yeah its M14 ... im pretty sure its 1.5 pitch, i have a tap at home for them, so i can confirm if you need, but its definitely metric.
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Re: Vs v8 mat sensor thread?

Post by antus »

Its definately a metric pitch - M14x1.5 and its ever so slightly tapered by eye so it tightens when it screws in. I just ran a tap over one to prove it was 14x1.5 and it started taking metal half way down. This taper might be why some people are saying NPT. Im not knowledgeable enough to know if thats normal, but ive definitely installed one to a hole tapped with M14x1.5 and it tightened up and its been fine.
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Re: Vs v8 mat sensor thread?

Post by antus »

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oss96
Posts: 22
Joined: Sun Oct 25, 2015 5:08 pm
cars: 96 Vs ss manual
97 Vs v8 Calais
09 Ve ssv manual
17 vf ssv redline manual
Location: Central Queensland

Re: Vs v8 mat sensor thread?

Post by oss96 »

Cheers fella's I was pretty certain it was m14×1.5, but after another bloke said it was npt I was a bit hesitant to go and drill, tap a thread in a new manifold if it was wrong.
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