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Old 05-09-2016, 09:39 AM
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4.7 oil pan rust

I got the rust....don't know how bad yet, but don't want to do too much poking/prodding till I am ready with a solution.

I was thinking of getting some thin aluminum, and shaping it so it surrounds the problem area, kind of like a partial pan over the original pan. The rust is mostly on the leading edge and bottom. I would then coat the entire inside of the aluminum with a high temp JB Weld or similar product, and push them together.

I know this would stop any potential leak, and probly last for a few years.

BUT my main concern is about heat retention and dissipation if I do this. Does there appear to be any issues with this solution?

Thanks.......

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Old 05-09-2016, 03:37 PM
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Re: 4.7 oil pan rust

Besides a potential leak, you can also get rust particles in your oil when it really gets bad. I would get a new pan and gasket/windage tray and replace it.
And for sure a lot of heat is normally dissipated by the air flowing around the pan, so i presume the cooling system will get more work to do.
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Old 05-10-2016, 08:58 PM
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Re: 4.7 oil pan rust

Frank is definitely right. If it's rusted pretty bad change it. There is no metal thickness there when new let alone when they start rusting. The pan and gasket are cheap at rock auto.When I did mine I got a new one and had it Rhino lined. The only real pain is the y pipe has to be removed to get it off and you have to separate the pan from the gasket first because there are 3 bolts that actually hold the gasket/windage tray to the block. You'll always have that worry if you try to patch it. Also take a good hard look at your trans pan.mine was just as bad as the oil pan.
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