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  #1  
Old 03-12-2012
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Changing out the Engine Instruments

So I have money to spend and I want to improve some of the cosmetics of the boat. I want to change out the Tach, Fuel Gauge, Water Temp Gauge, and the Ignition Switch on a 1979 Islander Bahama 30. The Engine is a Volvo Penta 2 cylinder diesel (MD7A).

Right now the tach does not work and there is no movement at all. I checked the AC voltage coming off the sender while the engine was running and only got .025-.049 VAC on the tester as I increased throttle. The voltage did increase, but is it supposed to be this low? I couldn't find an internet source to tell me what the expected voltage should be, so I don't know if this particular part is working properly or not. Does anyone know what it should put out? I also checked for 12 volts DC at the tach and it is there, so i am thinking it is either the sender or the tach...thus the reason to change it out.

The current tach only goes up to 3000 rpms (2 cylinder diesel). It is run off magnetic sending unit screwed into the block. If I can use a tach with a different sending unit source that would be easy enough for me to hook up, I wouldn't be opposed to doing so.

Now does anyone know where I should look for the replacement equipment? The only gauge that worries me is the tach, since I guess I have to match that. The other gauges are pretty much simple. I want all white gauges, since I am about to brighten up the plastic mount with a coat of white spray paint and think it would look good with white gauges on a white mount. It is currently a dull, weather-beaten black mounting box.

Anyone have any experience with this? Thanks in advance for any help you can give me.
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Old 03-12-2012
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Re: Changing out the Engine Instruments

Mine worked only intermittently. When I re-powered, my beta came with a VDO 304813 viewline series. They can be had at defender.com. You can tap into one of the alternator field wires to run it or it will likely run off of your magnetic pickup.
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Old 06-04-2012
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Re: Changing out the Engine Instruments

Oh...here are the before and after pics. Well it won't let me post the "after" pic in this one. I'll try again in a second post.
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Old 06-04-2012
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Re: Changing out the Engine Instruments

Try again to post after pic.
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Old 04-09-2013
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Re: Changing out the Engine Instruments

I re-did the instrument panel. It looks like this now. :-)
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