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Coolant Sensor Location

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Old 05-06-2016, 08:50 PM
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brian76
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Default Coolant Sensor Location
I got this new temp sensor for my engine coolant. The problem is- it's 1/4 NPT. The current one is 1/2 NPT mounted in the intake. Do I just drill and tap a new hole, or is there another place to mount it? Thanks
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Old 05-06-2016, 09:17 PM
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SH-60B
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There should be a location in each head, probably plugged right now if your temp sensor isn't in there. IDK the size, but a GM sensor is available in either size.
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Old 05-06-2016, 09:23 PM
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Originally Posted by SH-60B
There should be a location in each head, probably plugged right now if your temp sensor isn't in there. IDK the size, but a GM sensor is available in either size.
I have AFR 195 Eliminator heads. Do they have these too?
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Old 05-07-2016, 01:33 AM
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Originally Posted by brian76
I have AFR 195 Eliminator heads. Do they have these too?
I have those heads. Yes, they do. I had to have on of mine drilled and tapped for the larger original sender.
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Old 05-07-2016, 05:20 AM
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Originally Posted by rcread
I have those heads. Yes, they do. I had to have on of mine drilled and tapped for the larger original sender.
Know what I did? I went to Home Depot and got a brass bushing - 1/2 thread on the outside, and 1/4 thread on the inside. Perfect!
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Old 05-07-2016, 09:52 AM
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Originally Posted by brian76
Know what I did? I went to Home Depot and got a brass bushing - 1/2 thread on the outside, and 1/4 thread on the inside. Perfect!
Yes, one can do that when the temp sender is smaller than the hole.
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