First, here is a tech bulletin offering basic info and instructions to inspect annually. No other useful info about actual replacement is included.
http://olivertraveltrailers.com/topic/tsb-understanding-galvanic-reaction/
How many zincs are there on an Elite II frame?
What are their exact locations?
What is the correct procedure for replacing them (surface prep especially)?
Are they in fact zinc, or some other metal such as aluminum?
What is the size and part number?
Would it be beneficial to add more to the frame? Or larger ones?
http://www.boatus.com/boattech/casey/sacrificial-zincs.asp
There are two reasons I am asking:
First, they should be inspected annually and replaced if eroded to 50% of their original size.
Second, I will be adding additional aluminum brackets to the frame and wish to add extra zincs on them. Two of the brackets are for mudflaps and they will be in a harsh location in terms of road spray and gravel rash..
Comments?
Would somebody with direct experience like to start a How To thread? Any and all comments are most welcome.
Thanks.
John Davies
Spokane WA