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40' Outlaw Upgrades - Twin 900Sc to 1000hp Duramax Diesels

40' Outlaw Upgrades - Twin 900Sc to 1000hp Duramax Diesels

Old 05-21-2020, 12:06 AM
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Probably so.. Left that up to same guy who painted them the first time. Do think we're ditching the Alwgrip for Imron this time.
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Old 05-21-2020, 07:16 AM
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You can weld on the cases with all the parts in it?
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Old 05-21-2020, 09:35 AM
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Originally Posted by kidturbo View Post
Cleaned up that beautiful weld on the busted case, then pressure tested it with some soapy water. Next I hauled it down to my local welder buddy, who luckily a couple hours later, was able make all the bubbles stop..

Both lower units at paint shop now and hopefully back on the boat early next week.












I used to design common rail pumps and when a raw aluminum casting showed up, it would leak like crazy with 700kpa of fuel pressure.

The solution was to get them “impregnated” which I believe is basically just dipping them in loctite. Would be cool to inject into the internal passages under pressure. Keep the outside bare for better paint adhesion.
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Old 05-22-2020, 03:07 AM
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Originally Posted by Wildman_grafix View Post
You can weld on the cases with all the parts in it?
One would typically try and avoid such situations. However in this case, the cases weren't pressure tested before they came back.. So,, our options were pretty slim. There is no oil in the cases yet, and nothing major behind the area that was repaired. Luckily we only needed to fix a couple running cracks, and not grind out all of the previous work.
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Old 05-23-2020, 12:48 PM
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You should be fine, aluminum sheds heat quickly and you got that large housing for a heat sink.
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