Vg33e Pcv valve thread pitch

878 Views 6 Replies 2 Participants Last post by smj999smj, Oct 19, 2017

kevinjohnson3216

Discussion Starter · Oct 4, 2017

Anyone know off hand what the pcv valve thread pitch is on a vg33e?

Thanks

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kevinjohnson3216

Discussion Starter · #3 · Oct 4, 2017

smj999smj said:
It's 1/4" BSPT (British Standard Pipe Taper). I lot of people say it's 1/4" NPT, but it's not; they are very close. 1/4" BSP is 19 threads per inch and 1/4" is 18 threads per inch.

Thanks smj.

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kevinjohnson3216

Discussion Starter · #4 · Oct 18, 2017

smj999smj said:
It's 1/4" BSPT (British Standard Pipe Taper). I lot of people say it's 1/4" NPT, but it's not; they are very close. 1/4" BSP is 19 threads per inch and 1/4" is 18 threads per inch.

Off hand do you know if that hose is 3/4?

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kevinjohnson3216

Discussion Starter · #6 · Oct 18, 2017

smj999smj said:
I think it's 17mm. I usually just get the PCV hose from Nissan if I need one.

I have a new one, but I'm blocking off the pcv on the manifold to avoid pressurizing the crankcase through the valve not seating fully for my turbo setup

Running the pcv line pre turbo

17mm? Should be able to clamp a 3/4 down to that then. Thanks

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