Speedos.

[katana]

My limited electronics knowledge says a 7805 chip is a 5v device and as chips go its about as common as you can get! But unless the guages resistance wiring has been changed to work with a 5v source these regulators won't work correctly with Escort guages that Leon has determined need a different voltage regulator. At least they ain't the bi-metalic strip version from the dark ages LOL!

[anglia58]

hi, there will go one of these to miniliteman, one free holyday coming up, great !!!!, he wil have a look with a voltmeter i think, we have to wait for his profesionale report,

i got an other one, the second free holyday !!!!, i will stick it in my car, and will see if something blows up or burns down, i am a simple mecanic, change it, and see what happens, remember, i don't lay, unless i typ, or open my mouth, cheers marcel

[anglia58]

9 hours ago, katana said:

My limited electronics knowledge says a 7805 chip is a 5v device and as chips go its about as common as you can get! But unless the guages resistance wiring has been changed to work with a 5v source these regulators won't work correctly with Escort guages that Leon has determined need a different voltage regulator. At least they ain't the bi-metalic strip version from the dark ages LOL!

i didn't see your message, on evalbay, someone sells just the square thing, with wires, and says it works, what i saw on the one i got, it's the square witch is wired like the guy on evalbay says, i think leon will figure it out, my brain dosn't get it, i will try my second one, and buy some of those squares, and try that, if we get it to work, we got a nice problem fixed for very little money, it's great that miniliteman saw something very small, witch could be a solution, i have to say, he's got an advantage, he wears glasses, cheers marcel

[anglia58]

hi, an update from the simple mechanic, i used my second one in my van, to bad, nothing works, no temp, petrol, and no oil , dynamo lamp, the other stabiliser is on its way to miniliteman, he knows what to look for, i don't, he knows realy a lot, you could say he's smart, just don't tell him that, cheers marcel

[Rally Pack 2000]

3 hours ago, anglia58 said:

hi, an update from the simple mechanic, i used my second one in my van, to bad, nothing works, no temp, petrol, and no oil , dynamo lamp, the other stabiliser is on its way to miniliteman, he knows what to look for, i don't, he knows realy a lot, you could say he's smart, just don't tell him that, cheers marcel

Marcel did you give your only working stabilizer to like the one he asked a picture for to Leon and now your missing one for your own gauges?

Do you need a new one?

Usually these regulators just run the Fuel and Temp gauges so the oil and alternator lights shouldn't be affected?

[Miniliteman]

Marcel posted the regulator to me earlier today. Think I will get it monday or tuesday. He can buy it back from me if he needs one .... nah just kidding. I will compare the 80BB one with the original ones for the RS dash and the Mk2 dash and also my design. If it is easy to upgrade the 80BB one to 5.7 Volts then I will do that and send it back to Marcel so he can fit it to his car and see if it gives better readings from the gauges.

[Rally Pack 2000]

1 hour ago, Miniliteman said:

Marcel posted the regulator to me earlier today. Think I will get it monday or tuesday. He can buy it back from me if he needs one .... nah just kidding. I will compare the 80BB one with the original ones for the RS dash and the Mk2 dash and also my design. If it is easy to upgrade the 80BB one to 5.7 Volts then I will do that and send it back to Marcel so he can fit it to his car and see if it gives better readings from the gauges.

Being a Ford item that suits Cortinas of the same vintage I suspect it may already be the 5.7 volts you specified. Its the design of the unit itself that may prove an issue as it doesn't have a simple mounting screw hole like the sealed metal regulators of that era. There is some kind of copper collet that must have a socket to engage with on the cluster it was made for but that definitely isnt on Mk2 Escort Clusters.

 

[Miniliteman]

Don't you think that copper collet connects to the earth connection on the dash?

Or better, that the footprint of that 80BB thingy is the same as an Escort dash? (hopefully)

 

[anglia58]

hi, i did skrewed the regulator in an sports dashboard, it just fits, and the copper collet makes contact like the originale one,  i did have a look at an rs dash wich leon sent a picture of, it won't fit in there, the leg is at an different place, never knew that, you live and learn, i know it's stupid that my oil and dynamo light didn't work with regulator in the dash, they have nothing to do with it, i thought may be it's simpel, and i struck gold, but to bad no free holydays for me, but i still will go to england, i just will row myself, cheers marcel

[Rally Pack 2000]

11 hours ago, anglia58 said:

hi, i did skrewed the regulator in an sports dashboard, it just fits, and the copper collet makes contact like the originale one,  i did have a look at an rs dash wich leon sent a picture of, it won't fit in there, the leg is at an different place, never knew that, you live and learn, i know it's stupid that my oil and dynamo light didn't work with regulator in the dash, they have nothing to do with it, i thought may be it's simpel, and i struck gold, but to bad no free holydays for me, but i still will go to england, i just will row myself, cheers marcel

The internals of the regulators seem to be the same between the Sport Dash and RS dash its just the screw mounting point is different to get around the oil press gauge pipe outlet in the centre. When I looked at these later plastic regulators I though the collet would prevent the two main contact pins from going in deep enough to make a proper connection.

12 hours ago, Miniliteman said:

Don't you think that copper collet connects to the earth connection on the dash?

Or better, that the footprint of that 80BB thingy is the same as an Escort dash? (hopefully)

When comparing them side my side though yes the footprint is similar of that for a Sport/Ghia Dash (excluding the collet that lifts it higher than is usual)

It will be interesting to see what your readings are when you test it.

[Miniliteman]

The 80BB regulator from Marcel arrived yesterday. It is a very basic +5V regulator (7805 + diode + capacitor) but the mechanics with the heat sink is quite clever. But it does mean if you want to remove or add components you need to remove the pressed 7805 from the assy. What I noticed is that the pin that goes into the dash nearly hits the pins of the 7805 (photo); that could be the reason for the non-functioning lights on the dash Marcel has. When you push the regulator in/on the dash the pins might touch (short circuit).

The collet is used to get the proper height for the regulator (photo).

But that bit (which is also the mounting of the regulator) is on the wrong side for an RS dash (photo).

When you fit it onto the dash one of the screws for the dials is in the way but even if you remove that there is no simple way to mount the 80BB regulator so it will be loose on the dash plus you would need to place wire for the earth connection to the dash.

Need to investigate some more to see if there's a way to use the 80BB regulator add modify it so it gives 5.6 Volts.

[katana]

Just a thought Leon, if the VR can't be modified to increase the voltage, would adding to or reducing the resistance of the gauges be an option to work with the 5v VR?

[Rally Pack 2000]

I knew it wouldn't align with an RS dash but I think Marcel was trying it a Sport one which has the mounting arm and screw centered? Is it on the reverse side also?

[Miniliteman]

2 hours ago, katana said:

Just a thought Leon, if the VR can't be modified to increase the voltage, would adding to or reducing the resistance of the gauges be an option to work with the 5v VR?

Maybe that would work, but it is not an option I would go for.

[Miniliteman]

2 hours ago, Rally Pack 2000 said:

I knew it wouldn't align with an RS dash but I think Marcel was trying it a Sport one which has the mounting arm and screw centered? Is it on the reverse side also?

Marcel fitted the 80BB one to his Sport dash but then found that the oil and alternator lights didn't work (maybe due to the short as in photo 1). I removed the collet (sorry) of the 80BB thingy to try and fit it to the RS dash, also the other way around but then would have to re-arrange the internals but the PCB fouls one of the blue bulb-holders.

Am gonna adapt the 80BB regulator so that it gives 5.6 Volts and send it back to Marcel so he can test it on his Sport dash and see if the gauges now read ok.