Oil return hole thread size - GT-R Register - Official Nissan Skyline and GTR Owners Club forum

arnout · 2nd April 2006, 02:50 PM

Easy question for the pro's: What are the dimensions on the thread of the oil return hole? It's a big ass hole with thread tapped. Is it metric? What is the size and pitch? Talking about an RB26DETT block; oil return hole for the turbo(s)

Chris Wilson · 6th April 2006, 03:41 PM

I think it's a BSP thread, will need to find this out for myself as I need an adaptor, when i get a minute I'll measure it.

2nd April 2006, 02:50 PM	#1 (permalink)
arnout GTR Register Member Join Date: Oct 2003 Location: Haarlem, NL Posts: 228	Oil return hole thread size Easy question for the pro's: What are the dimensions on the thread of the oil return hole? It's a big ass hole with thread tapped. Is it metric? What is the size and pitch? Talking about an RB26DETT block; oil return hole for the turbo(s)

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6th April 2006, 03:41 PM	#2 (permalink)
Chris Wilson GTR Register Member Join Date: Aug 2001 Location: Shropshire Posts: 1,557	I think it's a BSP thread, will need to find this out for myself as I need an adaptor, when i get a minute I'll measure it.