Mercury Sportjet 90 regulator/rectifier

jetdriven

Seaman
Joined
Aug 25, 2002
Messages
70
I have a question about the testing of a Mercury Quicksilver voltage regulator number 883071A1. <br /><br />The red stator went bad on my boat, so I ordered a new one. I confirmed that it was bad by resistance testing. <br /><br />I tested my voltage regulator to determine if it was bad according to the manual and concluded that it is. The part of the testing procedure that was failed was the flow of current from either yellow wire to the ground. No current would flow in either direction even when the meter probes were reversed.<br /><br />I bought a new regulator, and it checks out the same as my old one. There should be current flow between the ground and either yellow wire in one direction but not the other when the leads are reversed. The new regulator shows no current in either direction, just like my old one. <br /><br />Both regulators show identical resistances and proper current flow between the red wire and both yellow wires.<br /><br />Do I have two good regulators now or two broken regulators?
 

superman

Petty Officer 2nd Class
Joined
Aug 23, 2002
Messages
133
Re: Mercury Sportjet 90 regulator/rectifier

What kind of a meter do you have? Is it digital or analog and does it have a diode test scale?
 

jetdriven

Seaman
Joined
Aug 25, 2002
Messages
70
Re: Mercury Sportjet 90 regulator/rectifier

Thanks for the reply. First I used an analog one. Then I had it checked with a digital one with a diode testing mode. The results were basically the same with either meter.
 

ODDD1

Lieutenant Junior Grade
Joined
Jan 23, 2001
Messages
1,054
Re: Mercury Sportjet 90 regulator/rectifier

Jet, you are getting nowhere with your test procedure....time for a different one? when running, are you getting a voltage rise at the battery, above what is there with the engine off? if not, check for AC voltage on the 2 yellow wires, if you have more than 15-20 volts, buy another regulator....
 

jetdriven

Seaman
Joined
Aug 25, 2002
Messages
70
Re: Mercury Sportjet 90 regulator/rectifier

Thanks for the advice. I've just gotten the engine back in the boat and ready to crank. I'll start it tomorrow and check the voltage output to the battery.
 

jetdriven

Seaman
Joined
Aug 25, 2002
Messages
70
Re: Mercury Sportjet 90 regulator/rectifier

I've started the boat and the charging system appears to be operating properly. Thanks for the advice, oddd1.
 
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