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tinkerer's avatar
tinkerer
Explorer
Sep 28, 2018

C 7 oil pan

About 3 years ago I posted a picture of my badly corroded oil pan on my C7 Cat. Well back then I removed as much rust as I could without taking the pan off and coated it with a epoxy product from an automotive store. This summer I thought the drain plug was dripping. Well I went to change the oil yesterday and no it wasn't the drain plug but a leak on the oil pan near the drain plug. I found any aftermarket oil pan and saved about $150.00 over a Cat oil pan which had a really poor paint job to begin with. So if you have a stamped metal oil pan, keep an eye on it. I was afraid it would develop a bad leak while I was traveling and starve the engine on oil leading to some really expensive repair.;)
Class A
  • SidecarFlip's avatar
    SidecarFlip
    Explorer III
    Sep 28, 2018
    Problem is, where the engine is mounted. On a rear mount, the oil pan is constantly exposed to the elements, rain, snow, gravel flung up from the tires... It;s constantly bombarded with stuff that causes premature corrosion.... and they use the cheapest steel available to form the pan anyway. I think Cummins and Detroit use a structural fiber oil pan instead of stamped steel. I know they do on big trucks. Those have their detractions as well but corrosion perforation isn't one of them.

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