Nothin like clean seawater components

[worldcatlemon]

Pulled entire seawater side of the system and soaked the parts in barnacle buster and what a difference!!!

Can’t wait to start assembly, prime and paint then install. I’m just really glad I took this stuff apart.

Does anyone know the paint color or code for the Cummins white ?

Topic

[Rob Schepis]

worldcatlemon wrote:

Rob, I removed the aftercooler core from the housing, soaked it in boiling water with Simple Green to remove any oil, then rinsed it, blew it dry with compressed air then soaked it in Barnacle buster to remove the calcium deposits.

Clean as a whistle

I do caution against soaking the entire core in any acid based solution, the air side is much more delicate and, as we know, the acid does no good there, it is for descaling of the seawater passages only. Especially do not do this if you have the aluminum finned cores from lates 90’s to about 2000. Best is to stand the core up and weight it down on a rubber sheet or such to seal the bottom and pour the solution in.

[worldcatlemon]

Great. Thanks for the info

I like the Industrial Rustoleum oil based white with an added enamel hardener. Tough as nails and pretty chemical resistant.

[Steve Sterk]

I serviced my raw water side last year & spay painted with this! Color is a good match & holding up great!

1 user thanked author for this post.

Rob Schepis

[Tony]

Nice work – they have come up well anyway ! Engines will be happier now!

Tony

worldcatlemon wrote:

The engines only have 283 hours but they sat for several years with brackish water in the lower aftercooler. I don’t think they were ever serviced since new but I’m doing complete service, all new belts, hoses, thermostats, filters etc… to bring them up to date.

[worldcatlemon]

The engines only have 283 hours but they sat for several years with brackish water in the lower aftercooler. I don’t think they were ever serviced since new but I’m doing complete service, all new belts, hoses, thermostats, filters etc… to bring them up to date.

1 user thanked author for this post.

Tony

[Tony]

How long ago was the last service – that AC core looks majorly blocked….

Tony

[John]

A good paint match is a 50/50 mix of Rustoleum gloss white and gloss almond. 8 ounce cans are good for touch-ups.

[worldcatlemon]

Rob, I removed the aftercooler core from the housing, soaked it in boiling water with Simple Green to remove any oil, then rinsed it, blew it dry with compressed air then soaked it in Barnacle buster to remove the calcium deposits.

Clean as a whistle

[Rob Schepis]

How did you clean the aftercooler core — tube bundle vs. air fins ?

[firehoser75]

Good job on the raw water component cleaning. I just mix a colour (close enough) using Tremclad gloss white and recreational white. It looks pretty good and is inexpensive.

[Author]

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