Gauge voltage regulator

66camperspecial · Post by **66camperspecial** » August 19, 2006, 2:26 pm

My gas gauge never worked when below a half tank and the temp,gas and oil gauge moved up and down a little while the motor was running so I replaced the regulator with one from a 69 I parted,now the oil reads alot more and the temp is up on the scale and about 20 degress more then it actually is so could a wrong year regulator be the cause or did the temp gauge ever read acurately on those trucks (1966). Jeff

ICEMAN6166 · Post by **ICEMAN6166** » August 20, 2006, 2:04 pm

there is also an instrument panel voltage regulator on the back of the panel.i do not know if the amount of voltage differs by year.if it is bad your gauges will not work correctly.

6166 Junkyard Dog · Post by **6166 Junkyard Dog** » August 20, 2006, 2:57 pm

The part name is Instrumental Cluster Voltage Regulator in which controls the voltage to your Gas/Temp gauge on the back held with 2 screws 2 terminals go to it We can new ones if interested

FORDification · Post by **FORDification** » August 20, 2006, 6:35 pm

The IPVR is adjustable. Read the following link for more info:

http://fordification.com/forum/viewtopic.php?t=9698

mikecarson · Post by **mikecarson** » August 20, 2006, 7:06 pm

That's very interesting, Keith. My fuel gauge reads 3/4 when full, and the temp gauge always reads 160, tho the thermostat is 180. I just never gave it a lot of thought.

Thanks for the link!

6166 Junkyard Dog · Post by **6166 Junkyard Dog** » August 21, 2006, 4:56 pm

I have never heard of such a thing as this part being adjustable, :lol:

Now I looked on back of several panels & that little regulator has 2 prongs with nothing in between to adjust, now remember :roll:

that post was on 67-72 truck site & that takes different regulators in which somebody should have known that... But anyway I looked at the 67-72 panels also & they have 1 gauge set up takes one that looks like the 61-66 & another has a total different that was with the printed circuit & most of those post's are from 70-72 trucks,,, My gauges were messed up on Big Slick, put new instrumental voltage regulator on with used sending units & works perfect I also have 2 tanks that both take stock units & are as accurate as you can get ,, Temp gauge I don't use since I run S-W Mechanical Gauge on that truck Check to be sure that gauge does work, sending unit works, ground wire hooked up on tank and also the wire from gauge has no breaks , My truck also charges 2 batteries @ 14.5 volts since we run also voltage gauge to keep that in line,,,, If its adjustable somebody send me a picture so I can see on a stock 61-66 regulator for fuel... Always looking for new info as long as it's correct

mikecarson · Post by **mikecarson** » August 21, 2006, 5:48 pm

Well, Tom, I just pulled an old gauge set out of the pile, it's out of a 64, and has the adjuster on it. The original one from my CV project also is adjustable. Couldn't get my head far enough under the dash of my 62 to check. I don't have a pic, but if you gimme your mailing address, I'll send you one.

6166 Junkyard Dog · Post by **6166 Junkyard Dog** » August 21, 2006, 5:54 pm

here is the part #'s for these little critter & :arrow:

let you decide

whats right or wrong for your truck
B9MZ-10804-C Fits 57-60 Trucks & 61-66 F-100-1100 Body Styles, 66 is uni-body truck, 81 F-series trucks, 85 is open driveaway truck with windshield & 67-69 F-800-1100 and T-1000/1100 and N-Series Trucks
C6DZ-10804-A 67-69
C9AZ-10804-A 1970 Only
D1AZ-10804-A 71-79
Hope this is some help to everbody in slick land

6166 Junkyard Dog · Post by **6166 Junkyard Dog** » August 21, 2006, 6:14 pm

Hey Mike I took one apart & there is some threaded adjustment that works something on the backside inside that part I do not really see a lot of movement but I do see the rod that moves the coil wire in & out so there can be some adjustment for whatever reasons there is if in fact does do the voltage reducing,,, this part had no wax around it so I was able to see some threads

mikecarson · Post by **mikecarson** » August 21, 2006, 7:17 pm

Something like this?

FORDMANLCRACKEL · Post by **FORDMANLCRACKEL** » August 21, 2006, 7:55 pm

ICEMAN6166 wrote:there is also an instrument panel voltage regulator on the back of the panel.i do not know if the amount of voltage differs by year.if it is bad your gauges will not work correctly.

I INSTALLED AUTO-METER GUAGES IN MY 66 THE NEEDLES WENT BACK AND FORTH LIKE WINDSHIELD WIPERS. I LEFT THE REGULATOR HOOKED TO THE WIRES BUT REMOVED THE SCREW THAT GROUNDED (AND ALSO HELD IT IN PLACE) NOW ALL THE GUAGES WORK FINE.

LONNIE

66camperspecial · Post by **66camperspecial** » August 21, 2006, 8:30 pm

Since these drop the voltage to the gauges could they be used to drop the voltage to 6 volt gauges when converting to 12 volts. Jeff

Comet · Post by **Comet** » August 21, 2006, 8:54 pm

6166 Junkyard Dog wrote:I have never heard of such a thing as this part being adjustable, Now I looked on back of several panels & that little regulator has 2 prongs with nothing in between to adjust, now remember that post was on 67-72 truck site & that takes different regulators in which somebody should have known that...

Yes, and did you read the original post?

66camperspecial wrote: ...I replaced the regulator with one from a 69 I parted... Jeff

6166 Junkyard Dog wrote:...66 is uni-body truck...

Huh?

6166 Junkyard Dog · Post by **6166 Junkyard Dog** » August 21, 2006, 8:59 pm

Hi Mike, That is not the correct one for 61-66 trucks, that unit is off a 71-72 truck in which that truck had the printed circuit board with some kind of rounded terminals, looks similiar when you take it apart,, the 61-66 has 2 prongs and is similiar to like the heater parts on the later trucks with that brown hard board... Now since last post I have looked on our repair books for trucks by Motors & does not say anything about messing with this regulator, BUT It says something about checking the Radio Condensor :?:

Do not know what that means but it was in our Truck Repair book that we used in the 60's on these trucks,, If this was done it was done by the Ford Mechanics that maybe went to a refresher course or got a memo

Back then things were less complicated & easier to figure out

6166 Junkyard Dog · Post by **6166 Junkyard Dog** » August 21, 2006, 9:15 pm

since somebody just wrote this 66 is uni-body ??? that is the Body Style that ford went by like this, if you need a part from Ford & lot trucks used the part with the same number then it will give all the styles that this part will fit
uni-body is style 66
fleetside is style 99
stepside is style 83
flatbed with racks is style 86

Comet · Post by **Comet** » August 21, 2006, 11:27 pm

Ahhh, gotcha.

66camperspecial · Post by **66camperspecial** » August 22, 2006, 9:45 pm

With the 69 regulator my gas gauge goes all the way to full now but the temp gauge reads about 20 degrees too hot and now I the oil pressure at idle is 30 and 80 going down the road but I can live with that untill I find the correct regulator,now I have to remember when the gas gauge is on E its empty not like before when it was about a half tank. Jeff

64Ranger · Post by **64Ranger** » August 23, 2006, 9:37 am

Sorry about highjacking this thread...
I also have a problem with my gauges...I have a 64 with the big truck gauge cluster. Everytime I turn the key on, my oil pressure gauge slowly goes to the max, but all my other gauges read properly. I thought it was a ground issue, but I can't find it. Any other suggestions?

6166 Junkyard Dog · Post by **6166 Junkyard Dog** » August 23, 2006, 5:15 pm

To the First :?:

You must use the correct voltage reulator for 61-66 Try that instead of the 69 & see what happens,, Hi Doug could be a ground issue check the wire from the gauge to the sending unit to see if any breaks or bare spots, Then also make sure the sending unit is for gauges & not the idiot light since there is a difference on those units