Burned regulator!

[tsubaki]

My problem was the electronics were cutting out about the time we got on plane. The voltage climbed to over 18v and everything not related to the engine was shutting down.

[phatdaddy]

bigshrimpin used to be a good source for older merc/mariner parts, might pm him and see if he has any left.

kinda strange having 2 bad grounds at once. one might have been out for a while

[garbubba]

I found a used regulator on ebay that had the wiring harness included, that's a big plus for me , because I'd have had to replace most of the lugs anyway. The guy said it tested good, so for $40 including shipping, I did it.

The other regulator tests OK, but is a bit scorched, I may try reusing it.

Once I get this worked out, I may change my harness to isolate the charging circuits & my two battery system. I like that it's redundant, in a way. How many of y'all are set up like that?

[garbubba]

Had an emergency trip to Alaska. Now I'm back & ready to get the boat fixed.

I have all the parts & it looks like the rain stopped so I have a question or two.

I'd like to make sure I don't have the same issue & burn up these regulators.

I thought through the possibility that the regulator had a bad ground. It gets the ground from the case to the water jacket on the block, right?

That was all clean & tight & had electrical grease on it, so that seems unlikely.

The wiring was all burned so it's hard to tell what went first, a short?

The stator LOOKS ok, I did not test it, should I?

I have a new (used) harness so the install should be easyier than repairing all that wiring.

Any suggestions?

Doug

[garbubba]

Put everything together yesterday, fired her up and Score! It's working.

Put in a new battery, all I need to do now is filters and grease the trailer & watch out lemonfish!