Oil port threads on back of AAZ head.

[Jetmugg]

Can anyone tell me what the threads are for the oil port on the back of an AAZ head?  Are they 1/8 NPT, or 10mm x 1.0 pitch straight threads?

I'm having a little bit of an issue figuring out what kind of fitting (threads to AN fitting) to use at that location.

Steve.

[Gizmoman]

I don't know of any "oil ports" on the back of an AAZ head.
The only ports I am aware of (other than intake and exhaust), are both for water.

[Jetmugg]

You are not looking hard enough then....

I'm describing the "back" of the head as the end opposite the camshaft pulley (driver's side when installed in a US spec vehicle in transverse orientation).

After a little more measuring and test fitting, the threads are 10mm x 1.0.  I think that some folks will use 1/8 pipe, but the threads appear to be straight 10 x 1.0. 

Steve.

[libbydiesel]

They are straight. 

[Gizmoman]

Got it - where the sensor is screwed in  DOH!