Alpha22
Well-Known Member
A bit away from the topic, but there is a nice example of replacing hour meters with RS modules here...
http://www.kahawi.co.uk/hourmeter.html
http://www.kahawi.co.uk/hourmeter.html
Repairing Sealine LED Hour Counters
- Thread starter Thepipdoc
- Start date
DavidJ
Well-Known Member
Re the RS hour meter.
I note the pins P N R and I
Would I just ignore R and I and just connect +ve to P and -ve to N
wooops!
Just read through the threads again and the question has been answered by beeks already...... "If you have the correct bit, you solder the positive wire between the P and I pins, and the negitive supply to N pin . these wires then go directly to the input terminals on the back of the meter, (by passing the ribbon ) see picture 13. "
I note the pins P N R and I
Would I just ignore R and I and just connect +ve to P and -ve to N
wooops!
Just read through the threads again and the question has been answered by beeks already...... "If you have the correct bit, you solder the positive wire between the P and I pins, and the negitive supply to N pin . these wires then go directly to the input terminals on the back of the meter, (by passing the ribbon ) see picture 13. "
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PRH
Well-Known Member
Neat solution to recording the actual hours run......
Thepipdoc
Well-Known Member
Well, as a stand alone hour counter it works!
But, having fitted the 2 lower helm hour meters I've just realised that if/when I fit the 2 on the flybridge, I will have 4 stand-alone hour counters all working independently of each other!
The other thing that is now apparent is the fact that if I were to mistakenly leave one of the 4 ignition switches on, it will throw the hour count askew, because regardless of the fact that the engine may not be running, the hours will continue to increase.
Does anyone know how I could utilise the signal from the oil pressure gauge, or somewhere else that only operates when the engine is running, to power the hour meter?
I'm fairly useless with things electric and unless I can come up with a solution I'm beginning to think I shouldn't have started this!
But, having fitted the 2 lower helm hour meters I've just realised that if/when I fit the 2 on the flybridge, I will have 4 stand-alone hour counters all working independently of each other!
The other thing that is now apparent is the fact that if I were to mistakenly leave one of the 4 ignition switches on, it will throw the hour count askew, because regardless of the fact that the engine may not be running, the hours will continue to increase.
Does anyone know how I could utilise the signal from the oil pressure gauge, or somewhere else that only operates when the engine is running, to power the hour meter?
I'm fairly useless with things electric and unless I can come up with a solution I'm beginning to think I shouldn't have started this!
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Andydent2000
Well-Known Member
On my downstairs dash I have a brown wire which is to power the hour meter. It comes off the oil light. Seems to do the job correctly. Upstairs I am struggling to find the equiv. I can get power no problem but there is a signal+ and signal-
The signal - is just that - a negative. I have proved this by wiring the negative to it and it still works. The signal+ doesn't deliver 12v however. Hmmmm anyone else closer to a solution?
The signal - is just that - a negative. I have proved this by wiring the negative to it and it still works. The signal+ doesn't deliver 12v however. Hmmmm anyone else closer to a solution?
Andydent2000
Well-Known Member
Ok thanks to help from volvopaul I have now four sets of working hour meters with the flybridge ones incorporated into the tachometer.
My dash downstairs is the old one with analogue hour meters so I have placed two Curtis 701 hour meters and wired to red/blue (+ve) black (-ve) and brown (hours). This will probably differ from most as on mine there was a huge clue on the back of the tachometer where this wire connected that said "hrs" and sure enough the meters downstairs work perfectly.
On the flybridge however I am probably in the same boat as many of you. There are 4 connections +ve, -ve, s+ and s-. + and - are easy. S+ and s- however are for the tachometer driven by a pulse signal from the engine.
The RS components 701 meter needs a 12-24volt +ve supply on the pin marked 'I' to make it work. As far as I can see there is no wire that does that on the flybridge.
Talking things through with Paul I realised that I needed to get a feed from the hours wire downstairs. Thankfully there was a wire spare on each of he existing looms. Hey presto! working hour meters. Looks brill and as the engines have only just finished 20 hours running in perfect timing to fit.
My dash downstairs is the old one with analogue hour meters so I have placed two Curtis 701 hour meters and wired to red/blue (+ve) black (-ve) and brown (hours). This will probably differ from most as on mine there was a huge clue on the back of the tachometer where this wire connected that said "hrs" and sure enough the meters downstairs work perfectly.
On the flybridge however I am probably in the same boat as many of you. There are 4 connections +ve, -ve, s+ and s-. + and - are easy. S+ and s- however are for the tachometer driven by a pulse signal from the engine.
The RS components 701 meter needs a 12-24volt +ve supply on the pin marked 'I' to make it work. As far as I can see there is no wire that does that on the flybridge.
Talking things through with Paul I realised that I needed to get a feed from the hours wire downstairs. Thankfully there was a wire spare on each of he existing looms. Hey presto! working hour meters. Looks brill and as the engines have only just finished 20 hours running in perfect timing to fit.
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Thepipdoc
Well-Known Member
I've fitted 2 of the 4 LCD's that I bought and they are functioning perfectly at the lower helm. Before I actually fitted them to the lower helm I mistakenly thought that if I started the engines from the flybridge, the hours wouldn't register on the lower hour counters. This isn't the case - I've so far clocked up 15.5 hours on the lower helm hour counters and I've not used the boat from the lower helm in that time.
I've now got the 2 LCD's that I haven't yet fitted sitting in my workshop with a 9volt battery attached and they will remain that way till they display 500(ish) hours, I'll then have a Volvo engineer stick his computer thingy into the ECU on both engines and he can tell me the exact number of hours the engines have done. I'll then fine tune all 4 of the hour counters by re-attaching the 9 Volt battery and then finally fitting all 4 of the counters into the tachometers.
Job done - hopefully!
I've now got the 2 LCD's that I haven't yet fitted sitting in my workshop with a 9volt battery attached and they will remain that way till they display 500(ish) hours, I'll then have a Volvo engineer stick his computer thingy into the ECU on both engines and he can tell me the exact number of hours the engines have done. I'll then fine tune all 4 of the hour counters by re-attaching the 9 Volt battery and then finally fitting all 4 of the counters into the tachometers.
Job done - hopefully!
Thepipdoc
Well-Known Member
I should add that the only downside of my installation is the hours increase as soon as the ignition is turned on. I couldn't find a way to get the power from the oil pressure gauge to the hour counter ( as I said in a previous post on this thread, I'm pretty useless with things electric)
volvopaul
Well-Known Member
Sorry to say bernie but your 63p engines ave no ecu or means of obtaining the hours recorded, your engines are pure old school mechanical motors, which isn't a bad thing .
Thepipdoc
Well-Known Member
Oh bug£*r! You learn somthing new every day.
Before the LCD's went completely I had a flash of 500(ish) hours, so I'll assume this was correct and calibrate all 4 LCD's to indicate this.
Thanks Paul.
Chill
Well-Known Member
The tacho stores the hours run in its memory and the lcd is just a display. When we bought our boat none of the hour meters were working so Leevonenginefixer took a working tacho from another sales boat took it apart and fitted the working lcd to our tacho and it displayed the hours!
PRH
Well-Known Member
Would hope by now that you have had complete success?
Have looked through your posts and can't work out exactly how you did it and got them both working in sync - can you share the final answer with all of us please.....
Thepipdoc
Well-Known Member
I have indeed repaired all 4 of the hour counters although at the moment I only have the upper 2 at the flybridge helm fitted. The 2 from the lower helm are currently sitting in my workshop connected to a permanent power supply, gradually incrementing the hours displayed and I'll leave them like that for a couple more weeks till the hours tally on all 4 counters.
I have no idea how, when I turn the ignition on at the upper helm the hours at lower helm increase but they do. (perhaps someone can enlighten us?).
To further explain, I've not used the lower helm at all since I originally fitted the repaired hour counters but prior to taking them off again, to synch all 4 of the hour counters, they were displaying 20.6 hours and when I fitted them they were displaying 1.2 hours.
Fortunately, prior to removing the displays from the tachometers gauges, I was able to get the port side from the flybridge, and the starboard side from the lower helm to temporarily flash up the number of hours that were recorded, and so I'm able to replicate those hours with the new LED's.
I hope this helps.
PRH
Well-Known Member
Sure does, many thanks. Will look forward to Paul's explanation of how the lower counters work when the flybridge tachos are powered up!
