Helm to Flybridge wire connection colour

Hi all, So I was at the boat on Sat and took some pic which I have attached. The boat is 24v. So Pic 1 is the orange cable from flybridge to Helm. Pic 2 - 5 are cables connecting switch to dials. Pic 6 are cables connecting to a dial on the flybridge, Pic 7 is the switch and we have 2 on helm and 2 on flybridge, Pic 8 is another connection on helm. Pic 9 -10 is on the flybridge. Pic are cables connecting the switch and pic 10 is the orange cable connecting to a dial. It seems that it has been setup wrong as the orange cable is not connecting the switches. We have only 1 dial on the flybridge which is the oil dial. We have a rev counter and knots but they do not connected to the switches they have there on cables and they are working. Any help on this be great.
 

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Fairlineboat said:
Hi all, So I was at the boat on Sat and took some pic which I have attached. The boat is 24v. So Pic 1 is the orange cable from flybridge to Helm. Pic 2 - 5 are cables connecting switch to dials. Pic 6 are cables connecting to a dial on the flybridge, Pic 7 is the switch and we have 2 on helm and 2 on flybridge, Pic 8 is another connection on helm. Pic 9 -10 is on the flybridge. Pic are cables connecting the switch and pic 10 is the orange cable connecting to a dial. It seems that it has been setup wrong as the orange cable is not connecting the switches. We have only 1 dial on the flybridge which is the oil dial. We have a rev counter and knots but they do not connected to the switches they have there on cables and they are working. Any help on this be great.
Click to expand...
To be honest I am even more confused. You now say that you have only one gauge, dial, on the fly bridge. How may at the helm? I don't know if PR will be able to make more of this but I would need to actually be on site and trace it all out before hazarding any guesses. Sorry.
 
Alex_Blackwood said:
To be honest I am even more confused. You now say that you have only one gauge, dial, on the fly bridge. How may at the helm? I don't know if PR will be able to make more of this but I would need to actually be on site and trace it all out before hazarding any guesses. Sorry.
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Hi Alex thats ok. We have 3 dials on the flybridge but only 1 that connects from flybridge to helm. It seems a right bodge job that they have done but I keep my fingers crossed we can get it sorted.
 
Fairlineboat said:
Hi Alex thats ok. We have 3 dials on the flybridge but only 1 that connects from flybridge to helm. It seems a right bodge job that they have done but I keep my fingers crossed we can get it sorted.
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Hi, I think you are right, a good old bodge! I suspect that your installation is and "Addition" Have you not got a manual for the boat and engines which would show original fit? Possibly something like this:-
1704726329652.png
Some of the stuff I have seen shows just a Tacho on the fly bridge, but that may for a different setup
As I said previously perhaps Paul R. will have more of an idea. He is the expert in this field.
 
Alex I agree it looks like a bodge

I have an instrument panel in my cockpit and in my wheelhouse

My 2 tachos come from different sources one a tachogenerator and the other is from the alternator

The oil pressure and water temperature come from the appropriate duel gauge sender which is different to a single dial.
sender

This could explain the " 2 switches " that are not connected

I think the person who wired this up did not understand duel dial displays and the different senders.

If I was doing this job which I wont I would strip out all the extra wiring and start again

I did not use colour wiring I used numbered wiring as it would have been too costly to buy all the wiring I needed in the number of colours I would have needed
 
PaulRainbow said:
Very confusing all round.

What exactly is it that doesn't work ?
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So on the flybridge we have the oil pressure dial, rev counter, knots dial. So with the switches I thought they would send the signal from helm to flybridge and vs verse. The Rev counter works but not the oil pressure dial. The knots dial doesn't work and it wont as its to old. I cant see what else the switches do. If I cant get anywhere I might just strip the old wiring out and not have the switches connected.
 
Fairlineboat said:
So on the flybridge we have the oil pressure dial, rev counter, knots dial. So with the switches I thought they would send the signal from helm to flybridge and vs verse. The Rev counter works but not the oil pressure dial. The knots dial doesn't work and it wont as its to old. I cant see what else the switches do. If I cant get anywhere I might just strip the old wiring out and not have the switches connected.
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There is no need to have separate switches just for the oil pressure gauge. If you have the usual TAMD41x engines and standard panels on the flybridge you would not have had oil pressure gauges.

The rev counters should only have power when the flybrdge key switches are turned on, same with the oil pressure gauges. The gauges need :

A switched positive (from the key switch or the rev counter)

A negative, If you want the gauge to illuminate, piggy back this off of the rev counter or any other convenient negative,

A switched positive for the illumination, piggy back from the rev counter.

A signal wire from the oil pressure sender. If not present at the flybridge helm, run one in parallel from the lower helm oil pressure gauge.

Once working, strip out all of the redundant wiring.
 
PaulRainbow said:
There is no need to have separate switches just for the oil pressure gauge. If you have the usual TAMD41x engines and standard panels on the flybridge you would not have had oil pressure gauges.

The rev counters should only have power when the flybrdge key switches are turned on, same with the oil pressure gauges. The gauges need :

A switched positive (from the key switch or the rev counter)

A negative, If you want the gauge to illuminate, piggy back this off of the rev counter or any other convenient negative,

A switched positive for the illumination, piggy back from the rev counter.

A signal wire from the oil pressure sender. If not present at the flybridge helm, run one in parallel from the lower helm oil pressure gauge.

Once working, strip out all of the redundant wiring.
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Hi Paul, thanks for your help on this. We have mercruiser engines. There is not key switch on the flybridge, I think your suggestion on piggy backing the is much better to do and strip redundant wiring out.
 
PaulRainbow said:
There is no need to have separate switches just for the oil pressure gauge. If you have the usual TAMD41x engines and standard panels on the flybridge you would not have had oil pressure gauges.

>

A signal wire from the oil pressure sender. If not present at the flybridge helm, run one in parallel from the lower helm oil pressure gauge.

Once working, strip out all of the redundant wiring.
Click to expand...
You cannot run a second gauge in parallel with the original

They are current measuring devices ( milliammeters ) if two are wired in parallel each will only see half the current and therefore only give about half the correct reading.

However a Mercruiser " dual station sender" will allow two gauges to be operated in parallel. This may be an expensive part so maybe this is the reason change over switches were fitted for the oil pressure gauges.
 
VicS said:
You cannot run a second gauge in parallel with the original

They are current measuring devices ( milliammeters ) if two are wired in parallel each will only see half the current and therefore only give about half the correct reading.

However a Mercruiser " dual station sender" will allow two gauges to be operated in parallel. This may be an expensive part so maybe this is the reason change over switches were fitted for the oil pressure gauges.
Click to expand...
Can't be arsed.
 
VicS said:
You cannot run a second gauge in parallel with the original

They are current measuring devices ( milliammeters ) if two are wired in parallel each will only see half the current and therefore only give about half the correct reading.

However a Mercruiser " dual station sender" will allow two gauges to be operated in parallel. This may be an expensive part so maybe this is the reason change over switches were fitted for the oil pressure gauges.
Click to expand...

I thought about that but refrained from posting due to PR attitude towards me

I have the same type of arange with VDO gauges and I changed my temperature sender and still need to change my oil pressure sender

The switches the OP poke about could be a way to overcome this by switching the senders to either th inside helm of the flybridge

PR comment to me shows perfectly his self centred attitude

I will probably be reported for this comment
 
PaulRainbow said:
Only when it comes to certain people on this forum.
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I think that before you guys all get your knickers in a twist we should be sure that we are all talking about the same types of sensors and gauges. Paul has already, somewhere, If I am not mistaken, stated that he has connected his in parallel on his boat? Could be that some types are voltage driven, unusual, but we don't know for sure from the information available. For as start we, I certainly did, assume that the OP had Volvo engines, not Mercruiser.
If the OP has milliamp devices then yes he probably needs a switch. I would suggest a DPDT or DP ON/OFF/ON.
As I have previously said on many occasions. Difficult to give precise answers with out seeing the actual set up on site.
HELM BRIDGE v.2 (2).jpg
 
Alex_Blackwood said:
, I certainly did, assume that the OP had Volvo engines, not Mercruiser.
View attachment 170464
Click to expand...

In most cases Volvo instruments are VDO with a Volvo logo on the gauge

To my knowledge VDO do have 4 - 20mA instruments but mainly associated with water and ot fuel level gauges based on a captative system. This is the system I have for my water and fuel tanks.

A voltage sensor Oil Pressure Sensor is a powered sensor that typically has three wires; a 5V+ power wire, a signal wire to the Elite ECU, and a Signal Ground.

So it is easy to tell which typ the OP has simply looking at the sensor and if it has 3 wires it will be a voltage but if its only got 2 or 1 it is a resistive sensor.

The resistive therefore has less wires so cheaper to wire up. as above it needs a 5 Vdc power where the resistive runs off 12 Vdc or 24 Vdc
 
Fairlineboat said:
Hi Paul, thanks for your help on this. We have mercruiser engines. There is not key switch on the flybridge, I think your suggestion on piggy backing the is much better to do and strip redundant wiring out.
Click to expand...
Do you have any pictures of the flybridge helm, showing the instruments ? If no key switch, can you start/stop the engines from the flybridge ?
 
rogerthebodger said:
In most cases Volvo instruments are VDO with a Volvo logo on the gauge

To my knowledge VDO do have 4 - 20mA instruments but mainly associated with water and ot fuel level gauges based on a captative system. This is the system I have for my water and fuel tanks.

A voltage sensor Oil Pressure Sensor is a powered sensor that typically has three wires; a 5V+ power wire, a signal wire to the Elite ECU, and a Signal Ground.

So it is easy to tell which typ the OP has simply looking at the sensor and if it has 3 wires it will be a voltage but if its only got 2 or 1 it is a resistive sensor.

The resistive therefore has less wires so cheaper to wire up. as above it needs a 5 Vdc power where the resistive runs off 12 Vdc or 24 Vdc
Click to expand...
Looks suspiciously like pic 10 in post #81. No? But allowing for the original bodge, again online hard to tell. As said, on site deduction OK anything else speculation.
 
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