First drive, a few issues!

[busmania]

After 18 months of work and probably 400-500 hours, we are on the road! I’ve actually taken a couple of drives and after working out a few other issues I still have a few I have questions on. Y’all know I’m not afraid to ask so here goes!

1. My temp guage clearly is not accurate. I’m running an analog guage that shows 185-90 whereas the stock dash guage goes all the ay past hot once the car is up to about 130 degrees. I’d like this guage to be accurate! I converted to 12 volt. Would you suspect the guage or the senders? How do I test each?

2. Going into 3rd it grinds. All other gears shift fine. The transmission is a stock unit that I bought used. Insides looked amazing. Could this be as simple as a shifter adjustment? If it is the shift rod adjustments, wouldn’t I have issues with another gears as each rod controls two gears?

Thanks y’all. You all have been a HUGE help over the last 18 months and I greatly appreciate it!

[cadillac512]

If you have 12v running to the gauges you need to drop it to 6v...that's likely what's wrong there. The grind into 3rd sounds like a syncro is worn and will require replacement of parts to fix, unfortunately. Not likely to be adjustment as you surmised. If you double clutch it (as you shift out of second,let clutch out as you pass into neutral, then clutch in again as you shift to 3rd) does it help?

[19Fordy]

QUESTION 1.
The stock temp. (and all the other dash gauges) will work only on 6 volts and DOES NOT operate on the Ohms Law principle. Hence you have to reduce the incoming 12V to 6V in order for accurate stock gauge readings. If you want to use the stock BAT. gauge it must be isolated and fed separately with 12V. Installing a 60 ohm resistor in the 12V line that supplies power to the BAT gauge will reduce the voltage to 6V and the gauge will work.
QUESTION 2.
Place your transmission in Neutral and very carefully check the "play" in your shift column linkage. Your shifter bushings may be worn and replacements needed. There is a kit for this and it's easy to install. You also need to visually check all the points of contact and wear in the linkage under the car the actuates your clutch when you depress the pedal, such as the clevis pins. The cumulated wear causes "slop" and needs to be eliminated.

[busmania]

Sorry, I should have clarified. I DO have a voltage reducer going to the wire that comes into the dash to power it (by gas volt guage I think). I have not tried double clutching as that thought was in the back of my mind but I never really understood how to do it. Thanks for the explanation!

All shifter bushings are brand new as well as the l shape bracket/part that connects to the transmission.

[19Fordy]

Busmania: Post #8 in the thread below will allow your BATT gauge to function properly.

I also reduced the incoming 12V to the dash gauges using a Constant Voltage Reducer. However, this still required that I isolate the BATT gauge and install a separate 60 Ohm resistor in a separate 12 line that feeds only the BATT gauge.

Here's how I did it.
https://www.fordbarn.com/forum/showt...rsion+12+volts

[busmania]

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Thanks 19fordy. So basically I need one reducer for the other three gauges and one reducer on the battery gauge. But, does this explain my issue with the temp gauge?

edit...I now see your other link linking to another thread with detailed instructions. I'll study that!

[19Fordy]

" But, does this explain my issue with the temp gauge?"
ANSWER: If "wired" as outlined above your temp gauge should work on the original 6V.
If the temp gauge sending unit that screws into the engine is faulty, your temp gauge will not read correctly. Same is true if your Temp gauge is faulty. See Ebay ad.
https://www.ebay.com/sch/i.html?_fro...gauge&_sacat=0
Note: I found, you have to have the patience of a toothache when dealing with these issues.

Here's good information about how temp. sender can be tested.
https://www.jalopyjournal.com/forum/...st-them.13813/
and
https://www.fordbarn.com/forum/showt...erature+sender

Also, reread all this info:
https://www.fordbarn.com/forum/showt...erature+sender

Check Ebay for temp. sending units. The reproduction units are low quality. Better off with NOS or good used. NOS is expensive but, worth it in the long run.
https://www.ebay.com/sch/i.html?_fro...ender&_sacat=0
Also, this:
https://forums.aaca.org/topic/315606...ensor-diagram/

[Terry,OH]

Possible you have a cracked syncro ring (blocker ring) which would require the transmission to come out and apart. If it were the clutch then both 2nd and 3rd would grind.