Anyone know the thread size for the rear thermosensor for 90-93 (the one with the green connector)? Planning on a reroute and considering drilling and tapping the water plug site for the sensor, but could not find a definitive answer for the thread size for the tap. Thanks.

 

i have see if i cant get the size of it today....was going to test the resistance values of mine.

 

I am almost positive that it is the same sensor as on the 1.8. For the 1.8 it is a 12mm x 1.5 and you drill a 13/32 hole.

 

Close only counts with horseshoes and hand grenades. I want to be sure since I will be drilling into the head.

 

I could check the part numbers to see if they are the same if you would like.

 

Part numbers slightly different. Maybe call a Mazda parts guy like Trussville and see if they are the same one.

 

a thread pitch gauges is like $2? i got one that i kept on my keychain till airport security said it was a "dangerous serrated item":gay:

 

I know, I am just lazy. Plus, there are conflicting answers on the other forum with some in metric sizes and some with standard sizes.

 

true....it would deffinately be metric. i would measure when i got home but i have a 1.8 also

 

Tom,

I'm pretty sure I placed the Green thermosensor in an existing port below the CAS, directly behind the barbed fitting in this picture:



Or I drilled and tapped a hole there, I can't really remember.

 

Isn't that it right above the barbed fitting; on the added plate.

 

Just a suggestion:

Tim; When you go to pick up the manifold from Tom, take along a sensor for the 1.8 and see if it fits the 1.6 hole that Tom took his out of. If it does, the tap size I talked about above is correct.

 

Maybe. There's another sensor with a green connector. It's got one spade terminal on it. It's much smaller in thread. This may or may not be the one in question. It's been a long time.

Do you or Paul have one? If so I'll bring it.

 

tom it's too hot out, having my mom take me to lunch instead of finsihing my longblock