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Underbody braces, turbos and more!

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PostPosted: Sat May 21, 2016 12:04 am 
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Joined: Thu Jul 01, 2004 3:52 am
Posts: 1537
Location: Vancouver, BC, Canada
I can't get words right.

The thread of feeding line on the adapter is fine but not for engine block as its thread minor stripped so I need to tap it. The problem is thread size and diameter, and of course right tool. So far as I know it's angled thread called pipe or NPT as I am pretty sure it is.

Odd part is I measure the thread on adapter is 28 SAE or .9 metric and almost 3/8" or 9mm but I believe thread gauge tool is useless on NPT as I tested it perfectly on the 1/8 - 27 SAE split die tool. :huh:

Can you please confirm that? Which is right measure? Thread gauge or split die tool?



PS. I only have last chance to ruin the engine block.... ;[

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PostPosted: Sat May 21, 2016 11:48 am 
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Joined: Mon Dec 01, 2003 12:47 pm
Posts: 11669
Location: columbus, ohio
i assume that you are talking about the supply line for the turbo oil feed located on the front of the block near the oil pump.

this thread is some english type like whitworth and the threads are usually damaged by trying to fit an npt threaded pipe adapter which crosses the threads.

i would suggest carefully drilling for npt threads and then using an npt fitting for the oil feed line. 1/8" mpt should work. :wink:

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PostPosted: Sat May 21, 2016 7:30 pm 
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Island Inbreeder
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Joined: Tue Oct 18, 2005 6:56 pm
Posts: 6347
Location: Emerald city Washington
if for some reason you can't get it close enough
you could us this stuff called spash zone Amazon sell it (it's not cheep)
I used it on my Tractor hydro pressure line worked great
.
......jv&s
.


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PostPosted: Sat May 21, 2016 8:15 pm 
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Joined: Thu Jul 01, 2004 3:52 am
Posts: 1537
Location: Vancouver, BC, Canada
Yup I guess... I don't know what it called anyway.

I already confirmed 1/8 NTP 27 is correct therefore the split die tool is right... not gauge because it's not NTP ring gauge.

I did test the adapter on the aluminum block that I found somewhere in my home. It's hard to believe the engine block used SAE! not metric... I will post pictures later.


JVS, is it epoxy compound clay like?

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