Trim Tabs Zinc?

[Still Running]

The zincs I put on my trim tabs last year fell off by July. I used the 2 3/16 ones pictured below. I think the bolt is what let go. What zinc do you use on your tabs?

[Capt. Carl]

almost the same ones that i use rick....i usually check those once a season or if i haul out for any reason. never had them let go yet tho....the ones i use may be 3 inch tho

[CapBob]

Use the same on my boat except 3".......

There might be a problem with electrolysis and it might not be from your boat, could be one of your neighbors and thats why the anode was gone, or could have been the bolt (but never had that happen).

Make sure when you put them on it is bare metal where the anode goes.

[Still Running]

  I will try the bigger one this year. The thing is both of them were gone about the same time.


Maybe my neighbor took them Carl??? 

[Hotrod]

I need to replace mine this yea.  what should I expect to pay for them?

[Still Running]

I can't remember Rod but I think they were under $10.00 ea

[Hotrod]

Cool,, then I'll just tell them to replace them

[CaptRandy]

I use 5" discs, last from April to Dec.

[Hunter 2]

I replaced mine yearly for around $10 each for zincs around 3 1/2". I have a bigger one on the rudder.   I think Ricks are decaying too fast.
When I remove my old zincs they still have more then half material left.

[PeggyLee]

Sounds like somebody has some stray electric in the vacinity of your boat.    

[Maritime Matt]

I use the same on my Lenco tabs and have never seen both gone. Never had bolts fall out of these and I've installed literally hundreds of these during spring commissioning. Sounds like a major electrolysis problem. Could be your boat, marina, dock mate etc.

[Still Running]

I picked up 3" Zincs this year, same marina and a bifferent slip.
Will see what happens...

[Still Running]

I picked up 3" Zincs this year, same marina and a bifferent slip.
Will see what happens...

be sure the wiring to the bilge pumps,it's not wet...this is the most common cause for a stray current corrosion...
now,dumb question...

engine zincs,they burnt too ?? as quickly as the tabs ??

Not at all

[Hunter 2]

Good info Jawz.
Most trim tabs are stainless steel right? Like my old Bennetts??

[Tacklebox Joe]

i used an anti-fouling paint and left no "gaps". So, i'm good jawz?

[Tacklebox Joe]

thanks jawz.....oops. what do you recommend i do now. Sand the paint?

[Hotrod]

 

[Tacklebox Joe]

hey rod you should've gave me one of these 

or maybe a 

dam and I thought I had my what to do list covered.

[Hunter 2]

Good info Jawz.
Most trim tabs are stainless steel right? Like my old Bennetts??

tabs are generally stainless steel.some boat mfg's do not "bond" the tabs-meaning,the tabs are not tied into ship's ground.meaning again,if the tabs are not bonded,putting a zinc on them is useless,the zinc will do nothing,as there's not electrical contact anywhere...

it's reccomended to have a gap of at least 1" around these as well...


i know,this sounds really stupid..but,replacing trim units,trim tabs,aluminum outboard brackets-all this gets real expensive...

This is true on my boat. No bonding and only hydraulic lines going to the tabs. The previous owner had zincs on them anyway.

[Still Running]

That is how mine was done also.