charging system 70hp evinrude 1996

[yowiie]

Needs some help
the wire from rectifier is in the wiring harness coming from the motor, but do not go to battery as i would have thought. It appears to go to the ignition and wires from ignition go back to batttery
Would it charge the battery?

 

[emdsapmgr]

The large cables connected to the battery provide voltage to crank the engine. They also transfer charging voltage back to the battery while the engine is running. Your engine's charging is done through the rectifier assembly, which provides unregulated battery re-charging as well as a signal to drive the dash tach.

 

[WernerF]

1996 is regulated.

 

[flyingscott]

The red wire from the regulator/rectifier goes to the battery side of the starter solenoid that's how the charge gets to the battery. So the regulator does connect directly to the battery.

 

[emdsapmgr]

You are correct on the rectifier/regulator. The parts lists shows p/n 585001-called a rectifier and lead assy. Usually these list these as combination rectifier/regulator. If you get into the Bombardier Dealer system, it shows it as the combination (upgraded) version.

 

[tommarvin]

Yowiie,is your question, how does the battery get charged? If so the battery gets charged from the alternator/stator.

Im not 100% sure about this but, the rectifier changes ac power from the stator to dc power, im not sure the rectifier even charges the battery,please correct if I am wrong. Anybody

If your battery is not getting charged, the battery could be bad, do a load test, take it out of the boat charge it up, does it hold a charge overnight..

.

 

[flyingscott]

There would be no need for a rectifier if it didn't charge the battery. The charging coils are a separate isolated system in the stator they have nothing to do with the motor running. That is another set of coils that do that work. That's why your motor can stay running if your battery/charging system go bad. Post #4 tells how the rectifier/regulator attaches to the battery for charging. 99.9% of all alternators produce AC power thus the need for a rectifier.

 

[oldboat1]

Put another way, the stator charges the battery as one of it's two functions. The rectifier then converts AC current from the stator to DC, for storage in the battery (the stator's charging function). It (the rectifier) also has a dual function. It converts output of the stator so a tachometer gets the correct pulse type to show rpms (See posts 2 and 5, above). The wire you refer to might be related to the tach.

Generators produce DC current in some older systems. Alternators produce AC current. High output alternators use regulators -- often another dual function, as combined regulator/rectifiers convert the AC output, and step it down to about 14 volts.