Aftercooler Shot?

[Taylor Kooiman]

Hey all,

Wondering if my starboard After cooler housing is shot? No issues prior to removing just figured it had been 2 years and it’s time. I did not service the last time as I did not own the boat. I was wire wheeling some of the corrosion off and the pitting seems excessive. The sealing surface seams to be ok with slight pitting that I believe I can sand out. Just slightly worried about the inside. My plan was to wheel, sand clean, aluminum black, lube and put back together. Wanted to get your opinion before I get going.

I understand it will not last forever BUT if I can get it through another 2 seasons that would really help me out. I just dropped a valve and am in the process of a rebuild. All six holes, new head, ect ect ect. So $$$ will be very tight this off season.

Any help is appreciated. See pics attached.

1 user thanked author for this post.

njbrett

Topic

[KevinS]

Core Tester

Rob, That is super slick! I’m all in on this.
Thanks, Kevin

[Rob Schepis]

6 x 6 x 0.25 inch 50 durometer neoprene squares from McMaster Carr

2 users thanked author for this post.

KevinS, Tony

[Taylor Kooiman]

DONE! That is fantastic, I work at a commercial plumbing shop so we have almost all of that material here. Question: The rubber material, thickness & source?

That is super helpful and will work for years to come.

[Rob Schepis]

Ship the core to them if it saves you 4 hrs of windshield time that you do not wish to do. Or if you’re handy and would rather spend that time constructively, build a core tester. Here’s one I built in under two hours.

[Taylor Kooiman]

I will if I have to, Just trying to avoid the sometimes 2 hr drive each way through LA to Oxnard. Just seeing if there are any closer options.

[Philip]

Why not drive them up to Seaboard?

[Taylor Kooiman]

Thanks Tony, I will get going on that.

Does anyone know of any trusted shops in the Long Beach/Orange County Area that pressure tests the cores separately?

I know Marine Diesel Services in Costa Mesa has the jig but will not piece work that out. Full service or nothing.

Thanks!

[Tony Athens]

The sealing surface is marginal because of sever undercutting very close to it. Block sand the ends by taking off about 005″ and post better pics.. You may have to consider bead blasting the uncut area, filling the close part with JB weld, building a 4.95″ diameter wood round jig and use that to block sand that part out.

Salvageable–Yes, but be sure your pressure the core separate, and maybe the assembled unit.

[Author]

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