Did this exact process using this video for my 2009 Hunter 36 3YM30, and for a friend's Hunter 41 DS with a bigger Yanmar. Both worked very well and continue to work years later. Fingers crossed you can do the same for your Volvo. BTW, even if the hours meter is blank it is still keeping track of hours, and will show the correct number of hours when replaced. I found that only when the tach is misbehaving (e.g. reading zero when the motor is on) that the hours meter doesn't advance. Good luck. There's some other threads on SBO where me and other folks have posted what they've done.If your engine hour LCD goes blank and you need to replace it for a Volvo Penta diesel engine, you can find the part via the following link: AK Speedo The replacement part with shipping to the USA was very affordable. You will need to remove your tachometer in order to replace the lcd part. A good video watch to see the replacement process is at the following link:
I've taken my tachometer apart and am waiting for the part to arrive tomorrow, then will put it in the tachometer. Once reinstalled and batteries are reconnected (following boat winter hibernation), I'll post whether the fix was successful or not.
The hours on a new unit are tamper proof so the only way to do it is connect to a 12V DC supply (maybe your car in the garage), calculate how many hours it is required to run, and pray you remember to pull the wires as soon as you have the required hours added. If it runs over by too much, run your boat to match the hours. Lastly, install.The question from my end is how I might be able to get the hours on a new unit to match the hours on the existing unit, so there is real info on the total m# of actual engine hours. Don't have an answer yet
Interesting - that would be a PITA. To be clear I was referring just to replacing the LCD, not the whole unit. If just replacing the LCD the hours are correctly displayed without any issue.The hours on a new unit are tamper proof so the only way to do it is connect to a 12V DC supply (maybe your car in the garage), calculate how many hours it is required to run, and pray you remember to pull the wires as soon as you have the required hours added. If it runs over by too much, run your boat to match the hours. Lastly, install.
True. But it's such a PITA when a new VDO tach is so cheap at $100.00 plus changeIf just replacing the LCD the hours are correctly displayed without any issue.
Lol, I'd argue its more of a PITA to get the new VDO tach to display your correct engine hours than it is to install the new LCD. also like 4x more expensive for the VDO tach. The LCD install takes maybe 15 minutes if you've done it once; maybe 30 if you're doing it for the first time. The VDO tach run would take hundreds or thousands of hours before its ready to put into your boat! 1,000 hours on a tach would take over 41 days, running continuously, to program to your correct engine hours. But I suppose its a nice new tach!True. But it's such a PITA when a new VDO tach is so cheap at $100.00 plus change
Never having done it before, yes it would be easier to install a new LCD at 15 to 30 min.The LCD install takes maybe 15 minutes if you've done it once; maybe 30 if you're doing it for the first time.
And when the damn thing craps up again, you'd have no hesitation in installing a new LCD.But I suppose its a nice new tach!
This is exactly the reaction I see from every person I've recommended this approach who has taken it. Well done - and if you have to do it again, its no sweat, and very inexpensive.I finally got the new lcd display installed in the tach, re-installed on the boat, and the engine turned on. The engine hours appeared in the new display and are correct. The part was only about $32 US without shipping, which was maybe $5. So, this is an inexpensive fix that does not require buying a new tachometer unit. The existing tach was reasonably easy to remove so I could work on it at home.