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Home › Forums › Other › OT: Garage gurus. Removing effed bolts….

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  • December 30, 2014 at 7:25 PM #781527
    Coronita
    Participant

    [quote=moneymaker]#1 make sure you know which direction the bolt is supposed to be turned, not sure of the little guys but sometimes the big guy gets turned opposite i.e. clockwise to get out.[/quote]

    I really really wish I was turning the bolt the wrong way. But if you see the picture above, I already got two of the bolts out (I replaced them with temporary normal hex bolts because I’m contemplating replacing these stupid allen bolts that some stupid engineers in Ingolstadt decided to use instead of a normal hex bolt ….)

    December 30, 2014 at 7:37 PM #781529
    Coronita
    Participant

    [quote=Blogstar]I’d exhaust all options for getting the bolts out without messing with the female threads. You might have removed some material with the bolt extraction so the head might be too weak for the slot and screwdriver suggestion?
    [/quote]

    That’s what I’m worried about….

    [quote]

    I have gotten away with pounding a smaller socket or wrench on the bolt head once or twice in my life too. Easier on larger bolts.[/quote]

    You mean on the outside, right? (I tried pounding in a bigger hex and torx socket and that didn’t work)
    The thing I hate about these bolts is they are perfectly round. So I’m wondering if that would work…The other thing, I don’t have much room to work a socket in between the bolt and the shaft bolt in the center.

    December 30, 2014 at 7:39 PM #781530
    spdrun
    Participant

    You can get special sockets that grip the outside of effed bolts.

    As to why — revenge for WW II, naturally.

    December 30, 2014 at 7:53 PM #781531
    Coronita
    Participant

    …so… Some mobile mechanic quoted me $75.. His approach is
    1) To use an impact wrench on the crankshaft nut to remove the pulley and gear behind it.
    2) Once removed, use a bolt extractor…

    Not sure if that would work. I can imagine the crankshaft nut will be on much more seized…..And he would need to secure the pulley so it doesn’t spin while he’s trying to remove the crankshaft nut.

    Seems overly complicated, not to mention it would f up my gear timing sync I think..

    Thoughts?

    December 30, 2014 at 8:08 PM #781532
    spdrun
    Participant

    So pulley is bolted to the timing gear using four bolts, which in turn is bolted to the crank end using the big bolt in middle? Yep. I’d say yank the whole assembly then fork with it on the bench.

    The timing gear is likely keyed to the crank and can only be installed one way, so risk of borking your timing is nil.

    Middle bolt is removed by a socket connected to a long bar which is (almost) braced against something immovable. Then hit the starter with the spark plugs removed. *clink* chugga-chugga-chugga. Poor man’s impact wrench.

    December 30, 2014 at 8:24 PM #781534
    kismetsdad
    Participant

    Rotary 7000 pound asymetric. Rotary probably best quality made.

    I use for everything including lawn mower.

    Another Idea btw.

    December 30, 2014 at 8:39 PM #781535
    Coronita
    Participant

    Though I thought about the idea of chucking the crankshaft pulley. I was wrong, it’s not $200…
    That crankshaft pulley is $300!!!!!

    http://www.ecstuning.com/Audi-B5_A4-Quattro-1.8T/Search/SiteSearch/Crankshaft_Pulley/

    December 30, 2014 at 9:18 PM #781536
    Coronita
    Participant

    Ok shop hobby vacation is almost over so this car goes into storage until I have time to work on it.

    I think I’ve decided what to do next.

    1. I’m going to get a larger drill bit and drill until the head of the stuck bolts fall off. Then the pulley should come loose. Hopefully I won’t damage the pulley because that’s $300.

    2. After I have the pulley off, I can try to use a screw extractor, since hopefully the pressure from the torque of the bolt will be off.

    3. In the worst case scenario that I cant extract the bolt, I’ll then just take the camshaft gear off and replace it.. It’s $90 for OEM, $30 for german 3rd party maker, and $20 used from ebay… I think I can borrow an impact wrench from someone to take that camshaft nut off.

    Thoughts?

    December 30, 2014 at 9:33 PM #781538
    CDMA ENG
    Participant

    Holy Fuck Flu…

    Man you have no luck…

    Lastly… are you sure these threads aren’t reversed?

    CE

    December 30, 2014 at 9:35 PM #781537
    moneymaker
    Participant

    Impact tools are what the pros use i believe, just need room to get them in there. Reminds me of when I replaced my torque converter last year, luckily however I did not run into something like this. The front drive axles did however use similar bolts.

    December 30, 2014 at 9:38 PM #781540
    Coronita
    Participant

    [quote=CDMA ENG]Holy Fuck Flu…

    Man you have no luck…

    Lastly… are you sure these threads aren’t reversed?

    CE[/quote]

    Yes, because two of the four I removed and replaced with a normal hex bolt . Stupid german engineering for over-complicating something as simple as a bolt…

    December 30, 2014 at 9:41 PM #781533
    Coronita
    Participant

    [quote=spdrun]
    Middle bolt is removed by a socket connected to a long bar which is (almost) braced against something immovable. Then hit the starter with the spark plugs removed. *clink* chugga-chugga-chugga. Poor man’s impact wrench.[/quote]

    Interesting…Never thought about that… You really should do something more with your hands 🙂

    December 31, 2014 at 7:22 AM #781544
    NotCranky
    Participant

    [quote=flu][quote=Blogstar]I’d exhaust all options for getting the bolts out without messing with the female threads. You might have removed some material with the bolt extraction so the head might be too weak for the slot and screwdriver suggestion?
    [/quote]

    That’s what I’m worried about….

    [quote]

    I have gotten away with pounding a smaller socket or wrench on the bolt head once or twice in my life too. Easier on larger bolts.[/quote]

    You mean on the outside, right? (I tried pounding in a bigger hex and torx socket and that didn’t work)
    The thing I hate about these bolts is they are perfectly round. So I’m wondering if that would work…The other thing, I don’t have much room to work a socket in between the bolt and the shaft bolt in the center.[/quote]

    I would try with the star pattern type socket over the outside of the round bolt, but you might bend the pulley shaft if you hit it too hard. $75 to the mechanic is sounding pretty good!

    December 31, 2014 at 7:32 AM #781545
    svelte
    Participant

    Oy. Thanks for the post and especially the pics.

    It is bringing why I quit working on my own cars flooding back to my brain. Things like this happened to me too.

    It often ended up costing me more to do it myself – especially factoring in my time and tools I had to buy.

    December 31, 2014 at 7:38 AM #781546
    Coronita
    Participant

    [quote=svelte]Oy. Thanks for the post and especially the pics.

    It is bringing why I quit working on my own cars flooding back to my brain. Things like this happened to me too.

    It often ended up costing me more to do it myself – especially factoring in my time and tools I had to buy.[/quote]

    Yeah I think i am starting to learn this the hard way myself… My original thought process was book value was almost = to price to get someone to do this… Hence why I was thinking to do it myself. Now, I am thinking what I should have done is gone with the #2 “drive car until belt snaps and engine blows up, then junk car” approach…. I guess that’s still a possibility, since I doubt the two stripped bolts are going to fall off 🙂

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