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Old 10-30-2017, 12:03 PM   #3
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AvalonGB's Avatar
City: Noank
Country: USA
Vessel Name: Avalon
Vessel Model: Grand Banks 46 Classic
Join Date: Nov 2014
Posts: 54
Greenwater Marine

I replaced the cast iron risers on our CAT 3208 210hp NA's with Stainless Steel risers from Greenwater Marine 5 years ago and have been extremely pleased with the results. They can make them either water jacketed or dry blanketed. After much discussion I went with the dry blanketed with water injection at the top of the riser right at the shower head. No longer have any zincs to replace and greatly reduces the chance of major engine issues developing if the water jacket fails.

I found the company to be great to work with and they know exactly what they are making as they needed no template and the risers fit perfectly to engines and existing hoses. Highly recommended.

If I can find some before and after pictures tonight I'll post them.
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