Guests - If You want access to member only forums on FM. You will gain access only when you Sign-in or Sign-Up on Fishing Minnesota.

It's easy - LOOK UPPER right menu.

Sign in to follow this  
Followers 0
Borch

Mercury not charging batteries.

11 posts in this topic

My 91 60 HP mercury is no longer charging the batteries. I'm having a tough time figuring it out. Any ideas to the likely culprit?

Share this post


Link to post
Share on other sites

Rectifier.....

A likely culprit is usually hooking up the cables backward. They don't seem to like that.

It is usually a small puck shaped object. Easy to replace.

A good way to test your charging system is to put a meter on your battery when not running and then with it running. You should see a jump in voltage. I want to say off hand somewhere around 13 volts when running.

Share this post


Link to post
Share on other sites

In checking the mercury parts list I'm not seeing anything called a rectifier listed. confused.gif Anything else they might call it?

Share this post


Link to post
Share on other sites

What's the serial and model number Borch ?

Share this post


Link to post
Share on other sites

I bet your tach also does not work. same thing happened to me. It needs a new part but i cannot remember what it is called. call a merc dealer and they should be able to get you a new one

Share this post


Link to post
Share on other sites

Quote:


What's the serial and model number Borch ?


Serial OD195670

Share this post


Link to post
Share on other sites

That's interesting, Mercury Parts Express doesn't give any info on it, here's picture, we are talking component # 39 and # 16 which says N.A. (not available).

You might have to check with a dealer, they might be able to find it for you, it's an easy installation.

15_500.gif

Share this post


Link to post
Share on other sites

Based on the description I wondered if that wasn't the part in the drawing. I ran into this before when I had a relay switch go bad for my tilt and trim motor. I had to take a digital photo and email it to mercury as the dealers couldn't figure it out. Mercury had just totally changed their design on it.

Thanks for the help guys.

Share this post


Link to post
Share on other sites

My 01 90hp Merc was not charging, it was the voltage regulator.

Share this post


Link to post
Share on other sites

BAM site calls out voltage regulator as part number 883072T and price is $127.92 and rectifier 816770T(old design)$37.92. Does the Tach work? If not chances are it is the regulator or the rectifier.

Share this post


Link to post
Share on other sites

another thing to consider when you replace the regulator is to make sure your battery is in good condition. If it is in poor shape, it can pop your spanking new regulator. Even a state of severe discharge on a good battery can pop it. They are designed to provide a "trickle charge" and not much more.

Share this post


Link to post
Share on other sites
Guest
This topic is now closed to further replies.
Sign in to follow this  
Followers 0



  • Posts

    • huntnfish
      I took the boat out for a test run last weekend to a quiet little lake. Water temp was 54. This weather isn't going to help with the water temps.
    • cartway
      Is the Vermilion egg capture complete?
    • Steelhead Chaser
      I hope to be out early next week.  Weather and river level depending.  Will post a report if I make it out.  Boat all ready to go.
    • crappie king 42
      I camp on an island so I don't have to worry about the landings and crowds. Do most of our fishing at night so I never worry about other anglers. If I needed to go to a public landing for opener I would never go. 
    • I fish, therefore I lie
      Here's the State's definition of a public water. Please note the highlighted text.  The Sucker is a Designated Trout Stream. (remember the blasting and improvements made back in the 70's? Those were public dollars that paid for it. )  That said, this isn't license for people to slob up private property, only to gain access to the stream. It might mean walking the shoreline from bluebird landing, or down from the freeway, but the water is open, and fishable,  to the high water mark. Subd. 15.Public waters. (a) "Public waters" means: (1) water basins assigned a shoreland management classification by the commissioner under sections 103F.201 to 103F.221; (2) waters of the state that have been finally determined to be public waters or navigable waters by a court of competent jurisdiction; (3) meandered lakes, excluding lakes that have been legally drained; (4) water basins previously designated by the commissioner for management for a specific purpose such as trout lakes and game lakes pursuant to applicable laws; (5) water basins designated as scientific and natural areas under section 84.033; (6) water basins located within and totally surrounded by publicly owned lands; (7) water basins where the state of Minnesota or the federal government holds title to any of the beds or shores, unless the owner declares that the water is not necessary for the purposes of the public ownership; (8) water basins where there is a publicly owned and controlled access that is intended to provide for public access to the water basin; (9) natural and altered watercourses with a total drainage area greater than two square miles; (10) natural and altered watercourses designated by the commissioner as trout streams; and (11) public waters wetlands, unless the statute expressly states otherwise.