Happy Aftercoolers

[BAL]

Twin 6BTAs, 330s. Just over four years ago I replaced my P.O. neglected aftercoolers with sbmar lubed aftercoolers with the copper cores. I am now servicing the aftercoolers and happy to report that the cores slid out with finger pressure, there was no corrosion or pitting, very minor scaling, and minor oil residue. That said, the boat lives and breathes in salt water for over 3 months a year and mostly rests in fresh water for the remainder. The boat is located in the Pacific Northest, cold water, and I don’t have a fresh water flush system. Just thought I’d put this info out there for anyone trying to calibrate aftercooler service intervals.
Happy Camper

2 users thanked author for this post.

Scotth, Rob Schepis

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[Andrew Smith]

When these Cummins aftercoolers fail from neglect what usually happens.

A friends volvo diesel aftercooler failed while offshore and he ended up rebuilding the engine. Sad thing is he had just rebuilt it 6 months before that.

Thanks,

[Tony Athens]

We have plenty of aftercoolers that are well over 10,000 hours (some over 20,000) and over 15 Yrs old– It all comes down to the initial proper assembly and servicing every 2-4 yrs if parked in saltwater..

Thanks for the heads up & sharing..

Tony..

[Author]

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