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| Dart -65 gauge https://slantsix.org/forum/viewtopic.php?t=16380 |
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| Author: | eepi [ Wed Mar 01, 2006 8:35 am ] |
| Post subject: | Dart -65 gauge |
Is there a regulator in gauge of 65 Dart? Or is it possible that it´s working without it? By the way what is that silver round thing back of the gauge in Early A-body Instrument Gauge Problems article of Slantsix.org? I dont have it in my gauges? I mean this picture :  [/b]
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| Author: | dakight [ Wed Mar 01, 2006 8:47 am ] |
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The gauge just left of center, above the pin connector, has 3 terminals... that gauge has a 5v regulator built into it. If the regulator is bad you will have to find a way to bypass it and put on an external regulator or replace the gauge. |
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| Author: | slantvaliant [ Wed Mar 01, 2006 8:49 am ] |
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I believe that can is a radio suppression capacitor. The instrument voltage regulator (IVR) is rectangular, and I don't see it in your photo. Sorry, I don't have the photos of my '64 Valiant gauge cluster handy. I did take a few when I switched to the solid-state regulator. |
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| Author: | eepi [ Wed Mar 01, 2006 9:22 am ] |
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im not sure is the regulator bad because wires weren´t even connected to fuel gauge when i bought this car. And the fuel tank sensor was broken. Now i have a working fueltank sensor and i just have to try to connect it to fuelgauge. Do i have to connect the cable from the fueltank sensor straight in to the connector of fuel gauge? And where does the sensor take ground? Sorry about my bad english. Im from Finland. |
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| Author: | dakight [ Wed Mar 01, 2006 4:48 pm ] |
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The can is a capacitor that takes noise out of the 12 v feed. The regulator is internal to the gauge with 3 terminals. On a 62 that is the Temp gauge but I understand that it is the fuel gauge on some models. 12v comes from the pin connector into the left (in the picture) terminal of the gauge , 5v comes out of the center terminal of the gauge... the one with the clip looking retainer on it. If you'll follow the trace from that terminal it goes over to the other gauge to feed 5v to that gauge as well. Ground is through the sending units. Early A-bodies had no external cluster regulator, it was built in to one of the gauges. I believe that changed somewhere around 1967. I wouldn't worry too much about your English; I wouldn't do nearly as well in your country. I guess it's fortunate that my native language has become somewhat of a universal trade language but I still admire anyone who can intelligently converse in more than one language. |
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| Author: | KBB_of_TMC [ Wed Mar 08, 2006 6:12 pm ] |
| Post subject: | 5V regulator |
The regulator inside the gas gauge is difficult to fix, but easy to disable - then you can use an external regulator like the later models. I've used a LM7805 electronic regulator with good results - the gauges warm up slower than the stock point-type, but it has built in short protection. |
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| Author: | iseemovies [ Wed Aug 12, 2020 9:27 am ] | ||
| Post subject: | Re: Dart -65 gauge | ||
Hi Hoping someone can help. I took my dash out to work on the fuel gauge. On the circuit board there was no wire connected to the "S" post. I've looked at the electrical diagrams, but can't figure out what wire connects to right side of the fuel gauge marked "S" I've attached a picture.
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| Author: | SlantSixDan [ Wed Aug 12, 2020 10:46 am ] |
| Post subject: | Re: Dart -65 gauge |
The 7805-based hack works, sort of, but is not wise. Get this IVR3 instead, and install it per these and these instructions. |
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| Author: | Greg Ondayko [ Thu Aug 13, 2020 5:52 am ] |
| Post subject: | Re: Dart -65 gauge |
I have the Part Dan Recommends in my 64 dart. I opened the VR contacts in the Fuel Gauge so they never touch.. Has been in there 3 years no problems so far. Greg |
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| Author: | Chuck [ Thu Oct 29, 2020 10:25 pm ] |
| Post subject: | Re: Dart -65 gauge |
Quote:
Why is it not wise? As an electrical engineer I see no problems and have run with the 7805 for probably 10 years or more. The IVR3 you referenced costs $50 vs. less than $5 for the 7805, which will probably out-last the car if it has a proper heat sink.
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| Author: | SlantSixDan [ Fri Oct 30, 2020 6:42 pm ] |
| Post subject: | Re: Dart -65 gauge |
Unwise for the same reason driving around with a single-pot master cylinder is unwise, or without a seatbelt: you can get away with it for a long time until you suddenly don't, then you might have time to wish you had chosen otherwise before very bad things happen. If a homemade 7805-based setup loses its ground, the gauges will quick-fry to a crackling, crunchy crisp. And even if it manages to keep its ground, that setup draws a lot of power and puts off a lot of heat. I have no affiliation with the R/T Engineering people and it's no skin off my knuckle (nor any of my business or concern) what anyone chooses to do with their own instrument cluster, but there's a reason why the thoughtfully-designed, failsafe part costs more than the electronic hackquivalent of baling wire and chewing gum. |
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