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1966 Custom Cab Gauges

  #1  
Old 09-19-2018, 11:25 AM
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1966 Custom Cab Gauges

So I've got a 66 custom cab and just finished up my engine swap of a fully rebuilt 1966 289 Now, on to the gauges to figure out why nothing works but the 4 way indicator and the alternator light. Anyone here have experience and success at cleaning this stuff up and making it work again? I'm specifically interested in knowing how fast I'm going, if my engine is overheating, and if my oil pressure is bad. A test procedure for the oil and temp sending units would be very helpful (should they be open or closed when under heat/pressure? Ohms etc.) perhaps pictures or a diagram of the speedometer as it should appear. That speedometer arrow just bounces around a whole lot.

Anyhow, that's the gist of it. I plan to give all the connections a good solid cleaning this weekend and just eyeball for issues then check wires for continuity.

Thanks in advance,
Mike
 
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Old 09-19-2018, 11:34 AM
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On the speedometer head and the needle bouncing. First likely suspect for that is a dirty/slightly binding speedometer cable. What can happen once the core gets sticky is it winds up some and then gets tight enough to release the energy and it spins higher and then settles back lower and again and again. You can remove the cable and pull the core from the cable and give it a good cleaning and lube. You can also do a test like this (without fully removing the speedometer head) to see if it works. Using a known good cable for this test can help eliminate possibilities.


Chad


 
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Old 09-19-2018, 12:00 PM
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Tell you what, the cable I have is new, but to long. I bet the extra length/bending is causing it to bind. I'll lube it up and straiten it out of the vehicle then test. If that works... I'll figure out how to shorten it or just get the shorter one for $20 at my Napa. Thanks!
 
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Old 09-19-2018, 12:37 PM
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Gauges

Originally Posted by RattyFord View Post
So I've got a 66 custom cab and just finished up my engine swap of a fully rebuilt 1966 289 Now, on to the gauges to figure out why nothing works but the 4 way indicator and the alternator light. Anyone here have experience and success at cleaning this stuff up and making it work again? I'm specifically interested in knowing how fast I'm going, if my engine is overheating, and if my oil pressure is bad. A test procedure for the oil and temp sending units would be very helpful (should they be open or closed when under heat/pressure? Ohms etc.) perhaps pictures or a diagram of the speedometer as it should appear. That speedometer arrow just bounces around a whole lot.

Anyhow, that's the gist of it. I plan to give all the connections a good solid cleaning this weekend and just eyeball for issues then check wires for continuity.

Thanks in advance,
Mike
First did your gauges work before the engine swap? If yes, then you may have the wrong senders. You should use the senders or switches depending if it is a gauge or idiot light for your year truck not for the year of the engine. Does your fuel gauge work? If yes then I would say your constant voltage regulator is good. If it doesn't then you need to check that regulator without it the idiot lights will work but not the gauges. On your oil light all you need to do to test the circuit is ground the wire attached to the switch if the light burns you need a new switch if not maybe a new bulb.
 
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Old 09-19-2018, 01:30 PM
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Crop Duster,

None of them worked before the swap either, including fuel. So you're saying the light for oil pressure should always be on, or at least just at start up?

Thanks,
Mike
 
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Old 09-19-2018, 01:50 PM
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It should come when you turn the ignition on and go out after you start up.
 
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Old 09-19-2018, 02:00 PM
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Ok. Looks like those instrument panel regulators are pricey and not all that common.
 
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Old 09-19-2018, 02:12 PM
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See if this link helps. They are available NOS or aftermarket.

https://www.ebay.com/sch/i.html?_fro...dkw=OTC+piston

Chad
 
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Old 09-19-2018, 04:09 PM
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Thanks for the tip.
 
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Old 09-20-2018, 05:47 AM
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Sounds like nothing on your dash panel was or is working. It might be a good time to invest in a shop manual and a wiring diagram manual. You can get them from all the re-pop suppliers + E-bay and Amazon.
 
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Old 09-20-2018, 09:16 AM
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You might be on to something Crop Duster! While we're on the subject of dash boards and gauge clusters... anyone have a picture of the radio or radio options for the 66 F100 Custom Cab? I'm going off to the junkyard this Saturday and the trucks are just about stripped out, but there are plenty in the cars to pick through. I might be able to find a similar if not exact one if I know what I'm looking for. Currently my old boy has a cassette deck in the dash
 
  #12  
Old 09-20-2018, 09:36 AM
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U.S. built trucks only had one radio choice - for 1966 it is the Bendix 6TBT AM Radio. Here's a picture of one here.

https://www.ford-trucks.com/forums/1...l#post18192253

They can be found on eBay as well. Here's some examples.

https://www.ebay.com/itm/1968-1971-F...kAAOSwvr1botJ9

https://www.ebay.com/itm/Beautiful-6...EAAOSwOuRZrgOP

https://www.ebay.com/itm/61-66-FORD-...0AAOSwsClblvsg

https://www.ebay.com/itm/61-62-63-64...0AAOSwRQla8g3T

If you see a 13 on the faceplate it is transistor based and if you see a 12 it is tube based, assuming the faceplate has not been swapped. Nothing wrong with the tube based ones but you might want to sway toward a transistor based one since it would be correct for 1966. Radios from 1961 to 1963 or 4 were tube based and then they switched to transistors.

Chad
 
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Old 09-20-2018, 09:53 AM
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Beautiful! Thanks! I have not seen any of those... but I just might know a place not to far from me.
 
  #14  
Old 09-20-2018, 10:32 AM
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Originally Posted by TA455HO View Post
See if this link helps. They are available NOS or aftermarket.

https://www.ebay.com/sch/i.html?_fro...dkw=OTC+piston

Chad
B9MZ-10804-C (replaced B7A-10804-B) .. ICVR - Instrument Cluster Voltage Regulator (Motorcraft GR-508) / Obsolete ~ Available NOS & from auto parts stores.

1957/66 F100/1100; 1961/64 Econoline; 1963/69 N/NT500/1000; 1966/77 Bronco; 1967/69 F800/1000.

1957/66 full sized Ford Passenger Cars; 1958/66 Thunderbird; 1960/65 Falcon/Comet; 1962/65 Fairlane; 1965/66 Mustang.

Chad, take a look-see at this pic...the Ultra VII viewer.




 
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Old 09-20-2018, 11:38 AM
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Thanks for that picture!

To the left of the focus **** - it that a 3.5" floppy disk drive? That's a good looking old unit. Very tall/large screen so you can obviously get a better view than my old one.

I bought one like this - used - and it comes with a Dell laptop to use with it. Click on the link for a sample of a brand new one.

Micro-Image Capture 8 20MP USB 3.0 Aperture Card/Fiche Reader-Scanner w/ 7-54X Lens, Fiche/AP Card Carrier, Footswitch & Software. W7/8/10 ready.

Chad
 

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