1967-68 mercury 650 voltage rectifier problems

[shankles43]

I have been having trouble starting my engine. I am almost positive it is the rectifier(it is black and burned-out looking), so I bought a rectifier on ebay. however, it is a different model. I was wondering if an older model would work on my engine. any advice you could offer would be greatly appreciated. thanks

 

[shankles43]

Re: 1967-68 mercury 650 voltage rectifier problems

can anyone help me here. do you know if an older rectifier will work on this boat? please help

 

[12Footer]

Re: 1967-68 mercury 650 voltage rectifier problems

Yes it will, just make double-sure to wire it up in the proper polarity.<br />The new ones hold-up much better than the old solenium type (with the big ol fins).

 

[12Footer]

Re: 1967-68 mercury 650 voltage rectifier problems

Check for a short also, before cranking it up. A short will quickly waste the rectifier.

 

[shankles43]

Re: 1967-68 mercury 650 voltage rectifier problems

Thanks a lot, Ill look out for shorts and see what happens.

 

[mellowyellow]

Re: 1967-68 mercury 650 voltage rectifier problems

replaced the rectifier on my '70 1150 last year<br />and the new style wouldn't bolt on without a little<br />metal bracket. if your going from new to old style<br />will need to remove bracket, but keep it for future.<br />I paid $35 for a brand new rectifier and the bracket<br />was an extra $8...<br />as for causing a starting problem, don't think<br />the rectifier would cause that? it just charges<br />the battery and sends signal to tach.<br />not an expert though, so could be wrong.<br />good luck,<br />M.Y.