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New to the Seaboard forums. Lots of info I have read so far. Great help !
I have read a couple of forums about aftercooler bore corrosion but did not see any pictures matching what I have.
Basic info. 2012 Cummins QSB 5.9 425 HP, 1200 Hours. Saltwater run. Squid screens, no strainers. No freshwater flush system…..yet.
The boat is new to me. Ran it a partial season so far, less 100 Hours. Had one gear oil cooler fail, replaced with a Seaboard unit. No zincs in the original unit.
I have disassembled the aftercoolers which came apart nicely. No hammering needed. The starboard housing has some pitting corrosion where the black coating appears to have been sacrificed. One particular area appears to coincide with the location and length of the rubber/plastic strip which was still installed. Another quarter sized area just below the top cap.
Any concerns with this corrosion ?
Thank you for your advice.
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Follow Phillip’s lead…….His post and guidance is 110%..
Tony
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Rob,
That aftercooler is relatively new – good for you! I donāt see anything to worry about.
Clean it up with some abrasive pad and then coat it with grease. Service the core per protocol. Remove the silicone strips, grease all up per protocol, assemble and pressure test….
With a religious use of fresh water flush your aftercoolers will stay in that good of condition for a long time to come…
Phil
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