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Best Penetrating Oil?

Discussion in 'The Garage' started by 86Cucvbeater, Nov 1, 2005.

  1. 86Cucvbeater

    86Cucvbeater 1/2 ton status

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    What do you all think is the best? I need to extract a broke bolt out of my dana 60 housing.. :doah: PB Blaster is not working.
     
  2. rugger03

    rugger03 1/2 ton status

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    I like Kroil or have really good luck heating the bolt then puting a block of parifan or a candle on it so the wax runs down into the threads.
     
  3. BadDog

    BadDog SOL Staff Member Super Moderator Author

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    Which bolt? How deep?

    IMO, heat is generally the best thing to use if PB does not work. I often find that welding a nut onto the remains (as long as it's not down below flush) is the best way to go about it. That "shocks" the bolt with a very fast, very high temperature increase and breaks loose the threads. After it cools, you can often back it out easily. I've also built up a "knob" of weld for and used vice grips for the same purpose.
     
  4. BadDog

    BadDog SOL Staff Member Super Moderator Author

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    I used to use Kroil, but then it got to where I could never find it. The wax trick works well too, but I still prefer the welding for the really stubborn stuff.
     
  5. Cornfield creations

    Cornfield creations 1/2 ton status

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    When we break a bolt at the shop like an exhaust manifold bolt, we like to take like a 1/2 nut and weld the inside of it to the broken bolt, cool it off, and be careful and usually it turn it out. Works pretty good, sometimes you may twist off a couple of nuts but keep trying, just make sure to get a good weld. Just an idea
     
  6. mudseeker

    mudseeker Registered Member

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    I use Free-All myself. That stuff is great for those jobs. Check your local paint store. If you cant find it,check out federalprocess.com. Thats the address on the side of the can.
     
  7. sweetk30

    sweetk30 professional hooker Premium Member

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    pb blaster is best in easy to find stuff.
     
  8. 4by4bygod

    4by4bygod 1/2 ton status

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    JB 80 from justice brothers is real good.
     
  9. sledheadak

    sledheadak 1/2 ton status GMOTM Winner

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    gm heat riser valve lube works far better than anything else i have tried.
     
  10. 4by4bygod

    4by4bygod 1/2 ton status

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    I've never heard of that. Thanks for the tip. The best stuff I've ever used that wasn't available over the counter was zyglo fluid.. it's used in the casting industry to check for cracks the eye can't see. you just dunk the casting in it, wash it off, and hold it under a black light.. the fluid works it's way in the crack so you can see it, which is what makes it handy for extracting broken bolts & screws.

    Tom
     
  11. diesel4me

    diesel4me 1 ton status Premium Member

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    forgot about that stuff...

    I had several half used cans of MOPAR "heat riser lube and penetrant" that were given to me by a mechanic at a local Chrysler dealership--that stuff was great,it had graphite in it too..I had real good luch using that stuff,especially if you heated the part up too...

    He'd always charge a can of that stuff,a can of brake cleaner,and a tube of RTV to almost every job at the dealership,and only use a bit of it--the rest sat under his toolbox for weeks,and would often go bad from sitting--so I told him if he needed a worthy charity to donate it too,I knew of a certain unemployed person with a garage who'd LOVE to have his "leftovers".. :whistle: :D ..I haven't gotten any for a long time--I think the guy quit and went to work at the FORD dealership a mile away insted! :(

    My dad used castor oil at the gas company where he worked --the service techs used it on LNG pipes and other rusted fittings--it was in a squeeze type bottle or a pump sprayer--not an aresol--it might have been "kroil",I'm not sure..I still have some,but all the writing came off the plastic bottle! :doah: :( :crazy:
     
  12. mosesburb

    mosesburb For Rent Premium Member GMOTM Winner

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    I agree. I use the **** out of that stuff.
    GM#1052627
     
  13. sledheadak

    sledheadak 1/2 ton status GMOTM Winner

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    i used it when i worked at gm as a tech.
     
  14. blasterD

    blasterD 1/2 ton status

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    I have used Liquid Wrench with good luck in the past. Also, for really stubborn bolts, heat is probably going to be your best bet.
     
  15. jhellwig

    jhellwig 1/2 ton status

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    Gee, why has no one mentioned WD-40?? :haha:
     
  16. jarheadk5

    jarheadk5 1/2 ton status

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    PB Blaster
    Kroil
    Mouse Milk (yes, that's an actual product name - used heavily in aviation)
    Kerosene and ATF mixed 50-50
    Heat (gotta be oxy-acetylene; straight propane or MAPP won't pump enough heat into the bolt fast enough. Ask me how I know...)

    When I worked at the truck trans shop, a lot of times we'd tack a nut onto the broken bolt and twist it out that way.
     
  17. dave_90_blazer

    dave_90_blazer 1/2 ton status

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    http://www.kanolabs.com/
     
  18. 86Cucvbeater

    86Cucvbeater 1/2 ton status

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    Anyone use the kroil with silicone? Is it better than the regular kroil?
     

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