sensor atachment?
08-08-2011, 08:41 PM
Post: #11
sensor atachment?
Defi is always PT !!
It look like NPT but the thread is different !

You can take a look on Defi manual:
http://www.nippon-seiki.co.jp/defi/media...1003-2.pdf

Or in the Defi catalog:
http://www.defi-shop.com/catalog/defi_ca...2011_e.pdf
Quote:/!\ Sensor attachements (1/8PT) are necessary to install oil press,
fuel press, oil temp, and water temp sensors.

And yes, greddy (grex) is also PT (BSPT if you prefer)
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08-08-2011, 10:15 PM
Post: #12
sensor atachment?
Damn, I thought I got it all figured out!!! Banging head Banging head Banging head
Already spend days for researching...

I found this:
http://www.defi-shop.com/product/meter/m...html#turbo
But on a 2nd look, it´s imperial gauges only!!!

If you look for the Greddy adatorplate on the internet it says they got NPT (27 threads/inch), but these are US pages, too.
My defi set came off a JDM RX7 so the JDM Greddy plate seems to have BSPT as standard.

Man that´s confusing... I wish those manufactures just stamp the type of thread somewere on the senders and adaptorplates!!!

Well, I guess the only problem is the water temperatur, cause the adapter I bought is NPT. Angry

1979 Toyota Corolla KE35
1983 Toyota Corolla AE86
1985 Toyota Corolla AE86
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08-09-2011, 12:44 AM
Post: #13
sensor atachment?
Personally I use small adapters to fit my NPT senders on my block and my Grex plate (bought in japan)

I also have a thread gauge and tap (both 1/8 PT and NPT), it help a lot to be sure what kind of thread it is Tongue
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