Battery Cables on WRONG! 1987 70hp 3 cyl

[Sink_Tip]

Merc 1987 70hp 3 cyl. I was doing some work to the tilt trim unit and I accidentally installed the battery backwards.
I energized the ignition and bumped it over a couple of times on the key while testing for power to the tilt trim.
The motor never started, and I only bumped the starter. I am waiting for some parts so I can't try to fire it up. I am worried that the reversed polarity has done some damage.
Any comments?

Thanks
Sink Tip

 

[Laddies]

Re: Battery Cables on WRONG! 1987 70hp 3 cyl

You probably burned the rectifier out but the engine should still run.

 

[MIKEY*2007]

Re: Battery Cables on WRONG! 1987 70hp 3 cyl

did the same thing burnt out rectifyer drains power from battery if you have power in battery should still start

 

[Sink_Tip]

Re: Battery Cables on WRONG! 1987 70hp 3 cyl

Yep fried the rectifier. Did the continuity test then tested it's DC output.
Bought a 35 amp full wave bridge rectifier from an electronics wholesaler for $3 (merc part was about $60). I had to change the ring terminals to female flat style and fabricate a bracket, but that only took 10 minutes or so.
Lots of juice going into the battery now!

Thanks to all who replied.

Grant