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Coolant acidity test

Radiator, fan tips and other cooling ideas can be found here.
Secesh
10+ Years
10+ Years
Posts: 14
Joined: Sun Jul 27, 2014 3:24 pm
Zip Code: 20119
Tractors Owned: Fords & NH: '50 8N, '51 8N, '57 860, '68 3000D, '78 4600, '96 5030, '97 5640, '94 6640, '99 TS100, and '50 Farmall Cub
Case 455, AC Gleaner F
Location: Catlett's Station, Virginia

Coolant acidity test

Postby Secesh » Sat Feb 21, 2015 11:58 am

To determine if your coolant has become acidic, set your digital multimeter to read a low direct current and place one probe in the coolant at the top of the radiator, not touching anything but the coolant, and the other probe on a good ground somewhere on the vehicle. The more voltage it's producing, the more acid the coolant has become.
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