40 hp mercury Rectifier is burnt up

[Shane M.]

I have a 1998 mercury outboard pull start.I had a rectifier installed.Worked ok for about a year,then I smelled burnt wire and my rectifier looks like it melted.Checked the wires with a omhs meter they are ok.What else can I do to find the problem. Thanks ahead.

 

[mellowyellow]

Re: 40 hp mercury Rectifier is burnt up

rectifier converts ac to dc current and sends a<br />couple extra volts to battery for charging...<br />but you don't have a battery??? also sends a<br />signal to the tach. do you have a tach?<br />lil puzzled here... maybe a pro. can answer this one.<br />good luck,<br />M.Y.

 

[Shane M.]

Re: 40 hp mercury Rectifier is burnt up

Sorry, I had the rectifier installed so that the motor would keep a charge on the batt. so that I could run my depth finder,GPS,lights,etc. and not have to keep putting a batt. charger on the batt.<br />But the rectifier looks like it got hot and melted some. What I would like to know is how can I run some test to find out what caused this to happen. Thanx Ahead of time.

 

[The Marine Doctor]

Re: 40 hp mercury Rectifier is burnt up

Easiest way to destroy your rectifier is to hook the battery up backwards.<br /><br />TMD

 

[jdkzrt]

Re: 40 hp mercury Rectifier is burnt up

If your battery is low, and puts a big draw on power generated by your stator, something is going to cook without a regulator. I would say that you are lucky you haven't fried your stator yet.

 

[Shane M.]

Re: 40 hp mercury Rectifier is burnt up

OK so I need to get a new rectifier and a regulator. How can I check to see if my stator is damaged. The motor runs fine. Thanks for the help.