Aluminum vs. Zinc Pencil anodes 3126 Cats

Rssll45

Rssll45

Member
Feb 16, 2009
87
New Orleans
Boat Info
1998 450DA
Engines
Cat 3126
Been reading the posts regarding the benefits of Aluminum vs. Zinc and looking at "Performance Metals" website. It seems like their aluminum pencil anodes that are built with a rod down the middle to hold the aluminum in place might be an answer to the problems in Cat 3126 raw-water cooled after-coolers, i.e., breaking off the zinc in the after-cooler when removing. Any of you 3126 owners have experience with the aluminum anodes?
 
are you in fresh or saltwater?
 
Most of the year I boat in Lake Ponchartrain which is brackish, with a trip or two in the gulf. I've always used zinc which seems to work (showing loss of metal).
 
Regarding he problem of zincs sticking in the aftercoolers, here's a hint I picked up from the Boat Diesel forum. You can make a cheap fishing tool by going to Lowes or Home Depot and buying a coupler nut for 1/4 inch all-thread rod. The nut will fit into the hole and screw down on the zinc and you can pull it out with vicegrips
 
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