Thread: Zinc Pencil?
View Single Post
  #4   IP: 65.243.187.21
Old 11-04-2006, 01:26 PM
pugetsails pugetsails is offline
Member
 
Join Date: Oct 2004
Posts: 4
Thanks: 0
Thanked 0 Times in 0 Posts
Dave,

If you have freshwater cooling there is probably a zinc pencil in the heat exchanger (not in the engine). I change mine on a very irregular basis. The old one has always eroded away by the time I get around to it. I have not noticed any corrosion problems in 25 years.

Dave
Reply With Quote