Oil Pressure Sensor threads size

Tombonombona · 06-03-2015, 12:33 PM

Ok guys, have an oddball question.... I am assuming that the sensor that is at the front and bottom of the engine is an oil pressure sending unit for the ECU, please correct me if I am wrong.
Now on my car I had an aftermarket oil press gauge installed (Defi) and the person that installed it used a couple adaptors to make both sensors work and what has happened is now both sensors are hanging off a long thin stalk of adaptors. What I am wanting to do is to make a remote manifold that I can hard mount to something and connect to the engine via a flexible line.... I just don't know where to find the thread sizes or pitches.

Thank you in advanced.

jwick · 06-03-2015, 02:01 PM

I believe the factory sender is 1/8"BP and the Defi is most likely a 1/8"NPT. You can probably get away with everything 1/8"NPT and just adding a couple extra telfon tape wrap passes on the BP threads to make it seal.

If you look at my build thread, linked in signature, you can see that I have mine done very similarly to your existing condition. The only major different is I also have my turbo oil supply take off teed in too.

SouthArk370Z · 06-04-2015, 12:29 AM

If you are going to be working on a 370Z, one of the most valuable tools you can have is the Factory Service Manual (FSM). Link in my sig. I don't remember seeing the thread specs for the oil pressure unit but wasn't looking for it.

Tombonombona · 06-04-2015, 04:20 PM

Quote:

Originally Posted by jwick

I believe the factory sender is 1/8"BP and the Defi is most likely a 1/8"NPT. You can probably get away with everything 1/8"NPT and just adding a couple extra telfon tape wrap passes on the BP threads to make it seal.

If you look at my build thread, linked in signature, you can see that I have mine done very similarly to your existing condition. The only major different is I also have my turbo oil supply take off teed in too.

Yes mine is very similar except that mine extends toward the rad a bit longer.. And since the roads where I am are garbage I worry about the shock on the thread from the leverage of the sensors when I hit bumps... I may just be paranoid.

jwick · 06-04-2015, 11:25 PM

Quote:

Originally Posted by Tombonombona

Yes mine is very similar except that mine extends toward the rad a bit longer.. And since the roads where I am are garbage I worry about the shock on the thread from the leverage of the sensors when I hit bumps... I may just be paranoid.

Nothing wrong with being paranoid when it comes to safety. Mine is pretty stout and I also have a ZSpeed undershroud to protect everything!

osbornsm · 06-09-2015, 04:36 PM

So did we come to a conclusion on the necessary adapter?

NPT / BSP / Male / Female ???

Whacha got?

SouthArk370Z · 06-09-2015, 08:40 PM

I haven't verified, but this guy seems to know what he's talking about.

osbornsm · 06-10-2015, 02:22 PM

THIS.

06-03-2015, 12:33 PM	#1 (permalink)
Tombonombona Base Member Join Date: May 2012 Location: Sk, Canada Posts: 159 Drives: 2012 370z Mag Black Rep Power: 12	Oil Pressure Sensor threads size Ok guys, have an oddball question.... I am assuming that the sensor that is at the front and bottom of the engine is an oil pressure sending unit for the ECU, please correct me if I am wrong. Now on my car I had an aftermarket oil press gauge installed (Defi) and the person that installed it used a couple adaptors to make both sensors work and what has happened is now both sensors are hanging off a long thin stalk of adaptors. What I am wanting to do is to make a remote manifold that I can hard mount to something and connect to the engine via a flexible line.... I just don't know where to find the thread sizes or pitches. Thank you in advanced. __________________ Tom B. Exotic Speed R2 Titan Catback-GTM Stage 2 Supercharger 522 whp on a mustang dyno 2004 Subaru STi **SOLD WRITTEN OFF**

06-03-2015, 02:01 PM	#2 (permalink)
jwick A True Z Fanatic Join Date: Dec 2010 Location: Houston Posts: 14,532 Drives: '10 G37 6MT Rep Power: 2465056	I believe the factory sender is 1/8"BP and the Defi is most likely a 1/8"NPT. You can probably get away with everything 1/8"NPT and just adding a couple extra telfon tape wrap passes on the BP threads to make it seal. If you look at my build thread, linked in signature, you can see that I have mine done very similarly to your existing condition. The only major different is I also have my turbo oil supply take off teed in too. __________________ '10 G37T 6MT Graphite/Graphite - BP - G37T Build

06-04-2015, 12:29 AM	#3 (permalink)
SouthArk370Z Premium Member Join Date: Nov 2010 Location: South Arkansas Posts: 8,435 Drives: 2014 Challenger Rep Power: 324197	If you are going to be working on a 370Z, one of the most valuable tools you can have is the Factory Service Manual (FSM). Link in my sig. I don't remember seeing the thread specs for the oil pressure unit but wasn't looking for it. __________________ Steering Lock Links - Search The370Z Bookmarklet - FSM @ NICOclub Mankind has progressed past the need for war but we haven't evolved that far. - NachoMahma

06-09-2015, 04:36 PM	#6 (permalink)
osbornsm A True Z Fanatic Join Date: Jun 2011 Location: WHAT Posts: 2,551 Drives: 2018 Camaro SS 1LE Rep Power: 423	So did we come to a conclusion on the necessary adapter? NPT / BSP / Male / Female ??? Whacha got? __________________ 2018 Camaro SS 1LE (455hp) - 2011 Nissan 370z (333hp) - 2004 VW R32 (240hp) - 2000 Civic Si (160hp)

06-09-2015, 08:40 PM	#7 (permalink)
SouthArk370Z Premium Member Join Date: Nov 2010 Location: South Arkansas Posts: 8,435 Drives: 2014 Challenger Rep Power: 324197	I haven't verified, but this guy seems to know what he's talking about. __________________ Steering Lock Links - Search The370Z Bookmarklet - FSM @ NICOclub Mankind has progressed past the need for war but we haven't evolved that far. - NachoMahma

06-10-2015, 02:22 PM	#8 (permalink)
osbornsm A True Z Fanatic Join Date: Jun 2011 Location: WHAT Posts: 2,551 Drives: 2018 Camaro SS 1LE Rep Power: 423	THIS. SouthArk370Z and xsamis like this. __________________ 2018 Camaro SS 1LE (455hp) - 2011 Nissan 370z (333hp) - 2004 VW R32 (240hp) - 2000 Civic Si (160hp)

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