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-   -   NB crank sensor on NA block? (https://www.miataturbo.net/general-miata-chat-9/nb-crank-sensor-na-block-20654/)

Joe Perez 05-08-2008 10:57 AM

NB crank sensor on NA block?
 
Title says it all- will an NB crank sensor fit onto a 1.6 or early 1.8 block?

cjernigan 05-08-2008 11:04 AM

Want a picture showing where it mounts on my block?

Stealth97 05-08-2008 11:12 AM

I have a '97 oil pump and can post pics of the mount there for the OBDII sensor if that would help.

cjernigan 05-08-2008 11:18 AM

It should be the same for the 1.8 NA guys, not sure about the 1.6 folks. Your picture sounds easier to get then me taking off my sensor.

Joe Perez 05-08-2008 11:19 AM

Oh yeah, I forgot the OBD-II NAs got it as well. Guess that answers the early 1.8 question. So, will it fit on the 1.6 is the question...

I'd love to see some pictures. Oh, and how thick is it? I know it's pretty thin, but are we talking 3mm, 2mm, what?

edit It looks like they may have used a different sensor on the OBD-II NA vs. the NB- It'd be nice to see pix of both.

Stealth97 05-08-2008 11:47 AM

Here are pics from my 97.

Here is the front of the oil pump... the chamfered hole on the lower right is the mount for the sensor. there is just one screw.

http://farm3.static.flickr.com/2116/...10db4a46b0.jpg

here is it mounted up. Excuse the mess, but I have a power steering leak and cant seem to find a pump eliminator pulley.

http://farm4.static.flickr.com/3145/...aaa2b19b35.jpg

Joe Perez 05-08-2008 11:57 AM


Originally Posted by Stealth97 (Post 253863)
Here are pics from my 97.

Ok, thanks. So it looks like a 90° piece of metal attaches to the block, and then the sensor attaches to that- this confirms my research. I believe that the NB sensor is a one-piece, hopefully that will be confirmed or disproved shortly.

I don't think the 1.6 OP has that hole- I'll get down and check for sure tonight.

As to your P/S pulley dilemna- it looks to me like you do not have A/C, so you can simply remove the belt altogether.

cjernigan 05-08-2008 11:59 AM

I'll take a picture of it for you when it stops raining. It is a single piece of plastic with the sensor integrated into the mount.

Stealth97 05-08-2008 12:05 PM


Originally Posted by Joe Perez (Post 253870)
Ok, thanks. So it looks like a 90° piece of metal attaches to the block, and then the sensor attaches to that- this confirms my research. I believe that the NB sensor is a one-piece, hopefully that will be confirmed or disproved shortly.

I don't think the 1.6 OP has that hole- I'll get down and check for sure tonight.

As to your P/S pulley dilemna- it looks to me like you do not have A/C, so you can simply remove the belt altogether.

If you look closeley on the top the bracket for the A/C compressor is there. It gets too hot in atlanta to ditch it. The angle of the picture is misleading, that belt is actually paralel to the ground.

Joe Perez 05-08-2008 12:35 PM


Originally Posted by Stealth97 (Post 253878)
If you look closeley on the top the bracket for the A/C compressor is there. It gets too hot in atlanta to ditch it. The angle of the picture is misleading, that belt is actually paralel to the ground.

Ah, yes. The position of the timing marks makes it clear.

Ok, so the hole in the OP that the sensor bolts to is below and slightly inboard of the hole that the A/C bracket mounts to. Good to know.


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