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1948 - 1956 F1, F100 & Larger F-Series Trucks Discuss the Fat Fendered and Classic Ford Trucks

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Old 07-16-2014, 11:14 AM
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petemcl petemcl is offline
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Originally Posted by jhweigel View Post
I made a 3 foot long jumper wire with alligator clips on each end. I used 14 gauge silicone hookup wire because it is very flexible. I have been trouble shooting the temp sensors on my flathead V8 (8BA) motor. Just jumpered across each wire between the two sensors, and each wire going to the gauge to check continuity, then check the temp gauge to see if any change occurs. Then I grounded the temp gauge to make sure it went all the way to "cold" then took off the jumper and it returned to "Hot" (with the ignition switch on) to verify that the gauge is working.

Sometimes simpler is better.
Be aware that the left sender is not really not variable. It is just on or off. . . . unless somebody replaced it with the wrong one.

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Northville, Michigan
2013 Jeep Grand Cherokee Overland Summit
2011 John Deere 2520
1950 Ford F2 w/flathead V8/4-speed
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Old 10-28-2014, 09:13 PM
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THis is a great diagnostic tool for tuning a flathead with a vacuum gauge. I think I have seen it before on this forum, but it's so good, it bears reminding members about it in this cool tips and tricks thread. The Van Pelt website is awesome and full of good information and drawings on flathead motors.

This vacuum diagnostic page is superb IMHO!


Joe Weigel
Franklin, TN
1950 Ford F1 Panel Truck
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Old 10-28-2014, 09:13 PM

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