1973 Mercruiser 165 hp Alternator question

[ShowMeGuy]

Can anyone tell me what model of alternator I have for my Merc 165?
From what I can tell it looks like a 10SI alternator with anti spark shields in the vent holes..

Looking at it it only had one wire hooked up to the big post on the rear and a ground wire to the housing..

Would this one here work?
3 Wire repair
http://www.ebay.com/itm/DELCO-10SI-A...0d12d3&vxp=mtr

or does it sound like it's a 1 wire ALT?
http://www.ebay.com/itm/10SI-Delco-A...1cb93c&vxp=mtr

I also need a capacitor as the wire broke off on the rectifier and the screw is siezed. This is what I'm lookin at now.
http://www.ebay.com/itm/Delco-Remy-A...04a4cb&vxp=mtr

TIA!

 

[Fishermark]

Re: 1973 Mercruiser 165 hp Alternator question

You would be better off taking your existing alternator to a shop and have them rebuild it. If you feel ambitious, you can buy a rebuild kit for around $25 from here.

 

[harleyman1975]

Re: 1973 Mercruiser 165 hp Alternator question

I rebuilt my one wire alt. last summer and it works great. it was so easy that I got ahold of another bad marine alt (same as mine) and rebuilt it as a spare.

 

[ShowMeGuy]

Re: 1973 Mercruiser 165 hp Alternator question

I rebuilt my one wire alt. last summer and it works great. it was so easy that I got ahold of another bad marine alt (same as mine) and rebuilt it as a spare.

Yeah, they aren't hard.. I got it all apart and blasted out the housings the other day and painted it last night... Little different color than factory... I had some left over paint from painting my old Ford 9N tractor. So the housing is gonna be Smoke Gray and the fan is black.
It is lookin nice! I just have to figure out what to do with the little sheild that goes over the rear housing with the spark screen...

I ordered my new one wire kit..... Should be here soon....

 

[harleyman1975]

Re: 1973 Mercruiser 165 hp Alternator question

You gotta put that shield back on that is what makes it "explosion proof".

 

[ShowMeGuy]

Re: 1973 Mercruiser 165 hp Alternator question

Yeah.. Never meant to imply I wasn't. Only trying to figure out how to coat/paint it. I like the off gold color look it has now... but Want to refreshen it....