removing stuck machine screws
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removing stuck machine screws

  1. #1
    gets 'em wet ultrajet's Avatar
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    Default removing stuck machine screws

    I'm trying to remove my rock grate and all four machine screws will not even budge. I can't imagine having to drill for an extractor in such confined quarters beneath the boat. Anybody have any tricks up their sleeve???

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  4. #3
    i'm back!! 1QuickCP's Avatar
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    Quote Originally Posted by ultrajet View Post
    I'm trying to remove my rock grate and all four machine screws will not even budge. I can't imagine having to drill for an extractor in such confined quarters beneath the boat. Anybody have any tricks up their sleeve???

    well if they are slot head I fit a socket screwdriver blade to the screw head, like a big gunsmith screwdriver blade.ie the sides of the blade are a perfect fit to the slot. then I take a large 1/2 inch rachett and set a hydraulic bottle jack under it, so if you can follow this the jack is placing upload on the rachett pressing the screwdriver blade into the slot.Then as you turn it the blade wont slip. i made a little aluminium fixture for my jack with a tiny bearing in it so it twists well but a touch of grease works good for 1 set of bolts. These can be a total bitch so best of luck.

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    tintingsandiego krusn56's Avatar
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    Drilled mine out and retapped them all the way through....If you decide to do this "wear goggles".
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    Seriously off center slowride's Avatar
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    Try an impact driver. They are a must for strikers on car door jambs too.

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    turn the boat over it will make drilling much easier, sorry, couldnt resist, sometimes there is no easy solution, have drilled some of those out that have anoded to the aluminum can be a real pain. soaking it in some kind of penetrant oil heavily for a couple days will sometimes help. good luck

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    deckboat owner rschap1's Avatar
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    read somewhere that the BEST penetrating stuff is a 50/50 mix of tranny fluid and acetone.

    Maybe a little localized heat if you got a small butane torch or something like that...then splash some cold water. Sometimes that thermal shock works as good as a hammer blast to the butt end of the screw driver...

    Good Luck

  10. #8
    Senior Member Amango's Avatar
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    Drill it a little and then use this extractor! they work great you can use a ratchet and socket!

    http://buy1.snapon.com/catalog/item....e=&dir=catalog

  11. #9
    Senior Member Luckie Stiff's Avatar
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    Quote Originally Posted by slowride View Post
    Try an impact driver. They are a must for strikers on car door jambs too.
    That's probably one of my favorite tools, I don't use it much, but when you need it, it's the only tool that will work. Old Ford doors don't come off very easily without one
    "Don't you realize that there are already enough people in the world to hate without you putting in so much effort to give me another?"

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    Senior Member Josh@JBP's Avatar
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    Quote Originally Posted by 1QuickCP View Post
    well if they are slot head I fit a socket screwdriver blade to the screw head, like a big gunsmith screwdriver blade.ie the sides of the blade are a perfect fit to the slot. then I take a large 1/2 inch rachett and set a hydraulic bottle jack under it, so if you can follow this the jack is placing upload on the rachett pressing the screwdriver blade into the slot.Then as you turn it the blade wont slip. i made a little aluminium fixture for my jack with a tiny bearing in it so it twists well but a touch of grease works good for 1 set of bolts. These can be a total bitch so best of luck.
    I've done just that, or at least a variation of that. I use a large good quality screw drive (especially if its a Philips) with a wrench point on the hilt and place a floor jack underneath the driver, then carefully turn the driver with a wrench. Once you get them to move they should come out fairly easy. If they're Allen heads it may be drill time.

    Edit: Just remembered your other thread. If this is the AT intake those hole shouldnt be blind like a berk, squirt some penetration oil on the top side and let it wick down into the threads. Also check and make sure they don't have nuts on the top side.
    Last edited by [email protected]; 05-28-2010 at 11:06 AM.

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    Senior Member Rain Maker MN's Avatar
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    Good luck getting those bolts out….I tried everything that was mentioned in this thread and ended up drilling them out…… if you have to drill them, get something comfy to lay on and get a good quality bit and make sure you are drilling straight…..then prepare for a long drilling session

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    Senior Member jet pilot's Avatar
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    I would soak the crap out of them with KROIL and try a impact driver, sometimes you have to give them a hit to loosen them up, or heat them to break up the corrosion.

  15. #13
    TJS
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    This has never failed me in extacting anything from broken taps to bolts. However if it is a clean break below the surface you may or may not have any luck. I have so far.

    Weld a nut to it. Let it cool a litttle and rock it back and forth and it comes out.
    I have never had to break out a drill yet and have been doing this for years.

  16. #14
    Junior Member speedboats's Avatar
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    weld a large hex key to it!!! Both heats the job and then you have something to torque on!!!

    When replacing these, use machine socket screws!!! (Hex key / Allen key type)

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