Rectifier or voltage regulator

[las]

Hi

I have been searching for specifications regarding the rectifier on my 1978 65hp Chrysler and can't find out if the rectifier is a rectifier with built in voltage regulator or just a rectifier?

My tach behaved rather funny when hooked up the last time I sailed the boat and I suspect the rectifier to be part of the problem. I'm now looking for either a simple rectifier, available at many electronic stores or perhaps a 12v scooter regulator, both are actually rather cheap.

 

[GA_Boater]

You have a rectifier only - PN's below. I'm not sure how much current the stator puts out, but I replaced my Merc rectifier with a 50V, 25 amp Radio Shack $5 rectifier. I don't know if you have Radio Shacks in Denmark, we don't have many left here in the US, but you should be able to find a similar rectifier.

 

[las]

Perfect, I have found a rectifier like the last in our picture for no money in a Danish web shop, well at least it looks like it.

I couldn't find out how much the output was, but i figured it can't be much or it would hurt the battery.

Thanks for the answer.

 

[gm280]

las, how many wires are coming out from the stator? If only two then any standard bridge rectifier will work.

 

[Jiggz]

The Radio Shack 25 amp is more than enough to do the job. So if you can find a similar one you should be good to go. Personally, I would go with an amp rating of no less than 12 amps; 15 amps even better.

 

[las]

Two wires to the rectifier but then there are two moregoing to the CDI if my memory serves me right!

But I had no idea how many volts it pumped out and thought it might be regulated also, but that doesn't seem to be the case.

Jiggz I think the most common ones are rated at 15A from my search, I'll go with that.

 

[las]

Many of the rectifiers I find are made for much more current, I can't figure out if that's a problem?

 

[GA_Boater]

If the original is rated at 12 amps, a higher rated regulator will be fine. In fact it won't be stressed as hard, so it should last longer.

 

[las]

Thanks for the input folks, I'll try and order one.

 

[gm280]

Yes las, more amps in this case means it can handle up to that amount of current. And more amperage capability is actually better. The two wires going to the CDI is to power it. If you really want to regulate it, you can find regulators for boats as well and install them. But unless you are having problems charging your battery now while running, I would forgo a regulator. JMHO

 

[Nordin]

las As gm280 says more amps does not hurt. It is even better with higher rated rectifier. Think your stator delivers about 12-15 Amps and I would replace the old with a 20-25 A rectifier.

Here are two shops i Sweden that would have a 20-25A singel phase rectifier. Elfa Distelect and ElectroKit.