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Old 01-08-2020, 10:45 PM   #1
DBrer
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Default Temp gauge probe pipe

I want to install a temp gauge in my 29 Tudor. I want to install the probe pipe in the top radiator hose. What size pipe do I buy Is the 38mm the right one? Thank you. Don
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Old 01-09-2020, 06:34 AM   #2
Synchro909
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Default Re: Temp gauge probe pipe

I take the easy option and put the sensor in the BACK of the goose neck. NOT in the side like the ones you get from the vendors. The probe then makes access to the head nuts difficult. I can't imagine anyone being so dumb as to do it that way, let alone have them made that way to sell. JUst my 2c worth.
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Old 01-09-2020, 11:07 AM   #3
Ray in La Mesa
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Default Re: Temp gauge probe pipe

Ditto Synchro909.
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Old 01-09-2020, 11:25 AM   #4
The Master Cylinder
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Default Re: Temp gauge probe pipe

Quote:
Originally Posted by Synchro909 View Post
I take the easy option and put the sensor in the BACK of the goose neck. NOT in the side like the ones you get from the vendors. The probe then makes access to the head nuts difficult. I can't imagine anyone being so dumb as to do it that way, let alone have them made that way to sell. JUst my 2c worth.
I don't have a problem on my '30, I think the '28/29 is tighter in that area. Wondering how often you have to get to that head nut tho? If/when I do need to torque my head I use one of these:



But I agree, it could have been designed differently.
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Old 01-09-2020, 11:31 AM   #5
The Master Cylinder
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Default Re: Temp gauge probe pipe

At any rate I don't think any of us answered DBrer's question and I am not quite sure what he is asking.
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Old 01-09-2020, 11:31 AM   #6
Gary WA
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Default Re: Temp gauge probe pipe

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Well is it a 38mm??
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Old 01-09-2020, 12:13 PM   #7
Bob C
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Default Re: Temp gauge probe pipe

The upper hose is 2 inches.
https://modelastore.com/cooling-system?product_id=3792
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Old 01-09-2020, 12:41 PM   #8
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Default Re: Temp gauge probe pipe

I would go for 1/2" NPT fitting, it can be bushed down if needed. Kinda hard to bush up.
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