Help!!! How to stop seperation in frame rails!

Discussion in 'Trucks [ Eighteen Wheelers ]' started by JakeBrakeChampion, May 22, 2011.

  1. JakeBrakeChampion

    JakeBrakeChampion Light Load Member

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    Apr 14, 2011
    Pennsylvania
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    My kw is double framed and i noticed water/mud getting inbetween the frame rails and rusting pretty good causing the frame rails to seperate.. It would make sense if they put grease fittings down the frame hmmmm solution but i dunno if thats a possible modification.. Any ideas!?!?
     
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  3. DL550CAT

    DL550CAT Road Train Member

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    I know a guy that sprays white grease out of a can down the frame rails. He said he does it twice a year. Dont know if it helps the frame rails. I use it on my ratchet binders I like it for that. I get it Home Depot PB blaster makes it.
     
    rookietrucker Thanks this.
  4. AUSSIE DAVE

    AUSSIE DAVE Road Train Member

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    you can also try a mix of 1 part desiel and 3 parts engine oil (old sump oil) this will help flush out all the rubbish and protect also.
     
    RAG Thanks this.
  5. ENR

    ENR Light Load Member

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    Oct 8, 2009
    Ontario
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    Krown rust control or Rust Check. You should be able to get it in PA. They both make coating products. I spray my frame ( anything steel ) down in the winter.
     
  6. RAG

    RAG R.I.P.

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    Tonga
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    Also works good on my binders:yes2557:
     
  7. melpromud

    melpromud Medium Load Member

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    Jan 29, 2010
    camden ny
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    If its already starting to push the two rails apart theirs a lot of rust and it probably to late to just spray it with something. You need to separate the two halfs, sand blast and paint before reassembling. This is a very time consuming and labor intensive job. You need to figure out if the truck is worth this kind of fix or not. If its not worth that kind of work to you then I would get rid of the truck while its still workable and still worth something to someone else. If you wait and keep running it with out fixing it, it wont be worth anything once the frame separates. Ive seen double frames separate so bad that the bolts actually broke and even pulled through the rails. If you do decide to just run it then buy all means spray the hell out of it with penetrating oil, Diesel, old engine oil or any thing that may slow the rust. It gets kinda grimmy after a while but it might get you the extra life out of the truck you want. The grease fittings might be worth a try. I dont see it hurting anything. I think it might be a better idea with a newer frame thats not showing any signs of rust yet but it might slow it down on yours. I guess you got nothing to loose at this point.
     
  8. joe jr

    joe jr Bobtail Member

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    Sep 18, 2012
    mass
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    Jake i also have the same problem on my o2 pete, and it sickens me .i bought new, and it's been an awsome truck! I clled peterbilt of nh. And got aprice on 2 new factory fram rails. They said, it would cost 12 to 13,000 dollars and that's all new huck bolts and cross members. I figure if i take a loan out for around 35,000 it's a tax writeoff and with the balance left i will have them do the motor and clutch as well i have 855,000 miles on the old girl with the original clutch ! The way i figure it's still a lot cheaper than a new one. Oh and by the way if your useing oil use bar and chain oil mix with diesel cause old engine oil is contaminated with oils from engine parts. Hope this helps /joe jr.
     
  9. Pablo-UA

    Pablo-UA Road Train Member

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    Borispol, Ukraine
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    i tried many things to stop corrosion. for single rail I used hammerrite paint, and I sugest it hepls with double frame, but frame rails twist on road and may damage pain, so I'm confused too

    may be protective fluids for cars (like rust bullet, canadian rust stop and other) may help..... they designed them for car bodies, especially for bottom and fenders and they help! but as I remember it is for three years, after that renew it
     
  10. Fatboy42

    Fatboy42 Light Load Member

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    Feb 9, 2011
    Indiana
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    If it is a nice truck replace rails or seperate them blast and paint. If just an old work truck and trying to get life out if it strip all acessories you can off rails, beat the rails with sledge hamer and blow compressed air between rails to blow rust out.. Do this until they are flat again (flat as they can be). Brush on or spray paint outside rails with paint After couple of days when paint has cured enough, spray transmission fluid between rails. Keep using transmission the fluid to keep rust down. We use to do this whith old dump trucks we brought back from the dead. Hope this helps.
     
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