CLASS RACER FORUM - View Single Post - corrosion around aluminum motor plate coolant holes

Jim B · 10-23-2015, 05:08 PM

Adding a zinc anode in a radiator bung used to be SOP when aluminum cooling system components were used in a cast iron engine environment. Adequate engine grounding is a must. As long as the water is potable (clean tap water quality) and the ph is around 7.0 we never found it necessary to use distilled water to prevent electrolysis.

10-23-2015, 05:08 PM	#4
Jim B Member Join Date: Dec 2008 Posts: 100 Likes: 0 Liked 1 Time in 1 Post	Re: corrosion around aluminum motor plate coolant holes Adding a zinc anode in a radiator bung used to be SOP when aluminum cooling system components were used in a cast iron engine environment. Adequate engine grounding is a must. As long as the water is potable (clean tap water quality) and the ph is around 7.0 we never found it necessary to use distilled water to prevent electrolysis.