Replacement rectifier Merc 850

[merc850]

I want to replace the factory rectifier with a rec/regulator, which one should I use?

 

[Gomer50]

Re: Replacement rectifier Merc 850

I want to replace the factory rectifier with a rec/regulator, which one should I use?

I have a 72 Merc 80hp and have been looking at this one.However coming from most of the Merc guru's there is no need to install a recitifier/voltage regulator.A plain and simple replacement recitifier will be just fine with the asumption all your wiring and stator are working as they should.I was curious myself noticing that when wot the voltage seemed to go up to near the 16 volt mark but I guess thats okay..Take a look at this website and see if this is what might interest you.
http://www.mfgsupply.com/m/c/01-090-1.html

 

[Chris1956]

Re: Replacement rectifier Merc 850

The charging system in the 70s inline motors is only 9A or so. A VR is unnecessary. What motor do you have?

 

[1979checkmate]

Re: Replacement rectifier Merc 850

if you do not want to spend the 40-50.00 on a new merc rectifier, go to radioshack and pick up this: http://www.radioshack.com/product/index.jsp?productId=2062584&retainProdsInSession=1.

 

[merc850]

Re: Replacement rectifier Merc 850

The rectifier is OK but I put in a new CDI trigger and I don't want to run it at 16v. I have found this one, will it keep the voltage around 13-14?
158067 18-5741 Voltage Regulator - Mercury/Mariner 815279-1, 815279A 2
It's listed on this website.
1975 Merc 850