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Old 06-27-2007, 09:13 AM   #1
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Question Rear thermosensor thread size?

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.
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Old 06-27-2007, 09:30 AM   #2
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i have see if i cant get the size of it today....was going to test the resistance values of mine.
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Old 06-27-2007, 09:35 AM   #3
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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.
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Old 06-27-2007, 09:53 AM   #4
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Quote:
Originally Posted by olderguy View Post
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.
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Old 06-27-2007, 09:56 AM   #5
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I could check the part numbers to see if they are the same if you would like.
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Old 06-27-2007, 10:16 AM   #6
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Part numbers slightly different. Maybe call a Mazda parts guy like Trussville and see if they are the same one.
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Old 06-27-2007, 10:37 AM   #7
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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:
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Old 06-27-2007, 10:45 AM   #8
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Quote:
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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.
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Old 06-27-2007, 11:04 AM   #9
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true....it would deffinately be metric. i would measure when i got home but i have a 1.8 also
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Old 06-27-2007, 11:31 AM   #10
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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.
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Old 06-27-2007, 12:03 PM   #11
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Quote:
Originally Posted by TurboTim View Post
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.
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Old 06-27-2007, 12:07 PM   #12
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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.
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Old 06-27-2007, 12:44 PM   #13
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Quote:
Originally Posted by olderguy View Post
Isn't that it right above the barbed fitting; on the added plate.
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.

Quote:
Originally Posted by olderguy View Post
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.
Do you or Paul have one? If so I'll bring it.
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Old 06-27-2007, 12:52 PM   #14
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tom it's too hot out, having my mom take me to lunch instead of finsihing my longblock
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