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Where to POR 15?

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by 90K5, Mar 15, 2001.

  1. 90K5

    90K5 1/2 ton status

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    i crawled under my truck yesterday and saw some surface rust on the rockers, and a little in the back area by the tailpan. I'm going to sand it down and clean it up. i have some POR 15 that i was going to use for the floor, which has a small amount of rust on some welds, but I'm going to order some more and do that later. Where should I put the stuff under my truck? Obviously onthe rockers and tailpan, put anywhere else thats prone to rust? I live in Texas, so I'm not blessed with knowing where to look for rust[​IMG]

    90K5

    See my truck at <A target="_blank" HREF=http://albums.photopoint.com/j/Albumindex?u=1329584&a=9886502>http://albums.photopoint.com/j/Albumindex?u=1329584&a=9886502</A>
     
  2. Blazer79

    Blazer79 1/2 ton status

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    You're lucky there's little rust under your Blazer. I want my Blazer to last forever, so if I were you, I'd POR15 every inch of it. In fact, that is what I'm going to do as soon as money allows. I know this involves a lot of work, but for longevity's sake, I think it's worth it.

    <font color=blue>//////
    <A target="_blank" HREF=http://blazer79.coloradok5.com>http://blazer79.coloradok5.com</A>
    </font color=blue>[​IMG]
     
  3. 88K5Jimmy

    88K5Jimmy 1/2 ton status

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    Behind the rear wheels up where the floor of the tub meets the support under neath it. I had a lot of rust under there but got it all out. In order to achieve this, only if it is rusted or you want to prevet rust from getting in there, take the silver trim piece that holds the carpet down inside the cab by the tailgate. There is a lip there, take a pair of pliers and bend it up. Sounds drastic but it's the only way to get in there. then scrape and pry and use an air compressor to get all the rust out. Then Por-15 it and bend the lip back down. then from the other side use caulk to seal the area up, form a nice bead along the whole area. This is what I had to do in order to stop that rust. Make sure you get it in there as far back as possible, with the Por-15 and the caulk. Hope this helps. If you got any questions as to what I am talking about let me know.
     
  4. dyeager535

    dyeager535 1 ton status Premium Member

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    I have to say forward of the rear wheels...behind the rocker, where the front seat belt bolts to the wall. While your there, you may consider putting up some kind of barrier (I am going to cut to shape, and bolt in a semi truck mud flap) between that area and the tire, and behind the rear wheel, so crap off the tires (water, dirt, road salt) can't get at the hinges, tailgate, etc. The barriers won't completely stop it, but will prevent the tires from throwing stuff all over the underside of the truck, which is why they rust out.

    Dorian
    My K5 and Chev/Olds tech/links page: <A target="_blank" HREF=http://www.dorianyeager.com/index2.html>http://www.dorianyeager.com/index2.html</A>
     

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