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How to use mechanical gauge and idiot lights?

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falcon_master
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How to use mechanical gauge and idiot lights?

Post #1 by falcon_master » Sun May 13, 2018 3:28 pm

Hi everyone I recently purchased this kit for 2 mechanical gauses oil pressure and water temp. How do I wire it so both my idiot lights and gauges work. Thanks

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Junior year high school AFJROTC cadet and car enthusiast. Likes all things ford and engines of any company. 64 falcon 2dr sedan,144CI and 3spd column shift. estimated 124,000 miles. Resurrected after sitting outside for 18 years, In process fixing for use as daily driver YouTube channel for repairs coming soon. “Old cars may break but are never broken”-RCR

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bubba22349
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Re: How to use mechanical gauge and idiot lights?

Post #2 by bubba22349 » Sun May 13, 2018 3:37 pm

All you need to do is to use a T fitting so both of the old and new sending units can be used togeather. Good luck :thumbup: :nod:
A bad day Drag Racing is still better than a good day at work!

I am still hunting for a project car to build but with my current low budget it's not looking so good. My Ex- Fleet of Sixes these are all long gone! :bang: 1954 Customline 223 3 speed with O/D, 1963 Fairlane project drag car with BB6, 1977 Maverick 250 with C4, 1994 F-150 a 300 with 5 speed.

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powerband
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Re: How to use mechanical gauge and idiot lights?

Post #3 by powerband » Sun May 13, 2018 7:52 pm

The oil pressure gauge can be a simple T fitting on the block' oil pressure lite switch port but the Temp guage needs to be in the coolant flow. Using a T fitting on the temp port supposedly results in a 'dead 'leg' and will not read accurately. So you can use the mechanical aftermarket temp. sensor bulb in the head port instead of the electric idiot lite switch but using T and both at head port may not work read accurately. An alternate location is in the front rad hose-thermostat housing. Some housings were tapped , most had the casting that could to be tapped.

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Econoline
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Re: How to use mechanical gauge and idiot lights?

Post #4 by Econoline » Mon May 14, 2018 10:51 pm

With the oil use a tee. With the water sender, mount the mechanical one in the thermostat housing.
It ain't gonna fix itself

1964 Econoline 170 3.03 on the tree swapped to a 250 with an aod, custom front boosted disc brakes and 3.70 9" rear axle
1993 F-150 xl 4x4 4.9 5-speed, Mazda manual stock
1992 Jeep Cherokee 2-door 4.0, 5-speed manual
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Matthew68
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Re: How to use mechanical gauge and idiot lights?

Post #5 by Matthew68 » Wed May 16, 2018 12:13 pm

I did this recently. See photo it works well.

293FA023-CAE6-4AB6-ABC6-29280BDAC875.jpeg
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