Author Topic: Another CB550 Not Charging Thread  (Read 6978 times)

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Offline maxheadflow

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Re: Another CB550 Not Charging Thread
« Reply #75 on: September 12, 2019, 08:19:47 pm »
One thing to note, Galvanic current and Galvanic corrosion are not related.  For me, as a retired EE,

It's good to understand electron flow when tig /mig welding.


Perhaps, then you can explain what type of current is present and measurable during galvanic corrosion....?

Sure. In order to have galvanic corrosion you need 2 dissimilar metals and a electrolyte (could be water) . 

https://www.pemnet.com/design_info/galvanic-corrosion/

The contact between the 2 metals does not create the corrosion but completes the circuit. 

You have say

Metal 1  <---
   V            |
Water         |
  V             |
Metal 2 -----

😃

I understand the 3 basic elements as well as the "galvanic (dc) current" present and measurable during the process.

OK, So I'm not sure what this has to do with ground wires?

Offline Tracksnblades1

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Re: Another CB550 Not Charging Thread
« Reply #76 on: September 13, 2019, 03:34:54 am »
One thing to note, Galvanic current and Galvanic corrosion are not related.  For me, as a retired EE,

It's good to understand electron flow when tig /mig welding.


Perhaps, then you can explain what type of current is present and measurable during galvanic corrosion....?

Sure. In order to have galvanic corrosion you need 2 dissimilar metals and a electrolyte (could be water) . 

https://www.pemnet.com/design_info/galvanic-corrosion/

The contact between the 2 metals does not create the corrosion but completes the circuit. 

You have say

Metal 1  <---
   V            |
Water         |
  V             |
Metal 2 -----

😃

I understand the 3 basic elements as well as the "galvanic (dc) current" present and measurable during the process.

OK, So I'm not sure what this has to do with ground wires?

I'm not sure I can help you if your having trouble following along. Perhaps a sensible review of the earlier posts may bring clarity to your last query.
Age Quod Agis

Offline maxheadflow

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Re: Another CB550 Not Charging Thread
« Reply #77 on: September 13, 2019, 07:20:37 am »
Quote
That picture as is the one of the points should be self explanatory and testament to Spanner's and Scottly's post.  My signal lights are wired the same as yours on my F1/2/3 also. And As pictured in the modern photo, they must rely on galvanic current (dc) flow through the bulb's base, socket, and bracket, all of which may be dissimilar metals. Which would still be exposed to your galvanic corrosion concerns regardless of the wire Honda provided. The point plate picture references the above posts indicating manufacturers have incorporated frame, engine, chassis, grounding circuits utilizing similar and dissimilar materials in their primary designs for some time and still do.

I'm basically agreeing with this here. Galvanic current is basically any DC current may not be not related to Galvanic corrosion.

Added in the clarification as galvanic corrosion likely does have a very small current flowing as part of the reaction.
« Last Edit: September 13, 2019, 07:25:47 am by maxheadflow »