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Thread: Help! stripped control arm mounting point

  1. 02-21-2011 11:06 AM #1
    I was being a little careless and I managed to strip the threads on the control arm mount. From what I read I have to cut out the old mounting point and weld in a new one, but that seems like it will be very difficult to line up properly and I may run into alignment issues. Is there any way around this, has anyone successfully done it another way?

    I've never helicoiled a part and have heard that may work but the problem is I can't really see the the threads and don't want to make it worse than it already is.
    Last edited by crazycommie; 02-21-2011 at 12:40 PM.
    Current 1991 audi 200 20v turbo waggen, 1990 vw cabby 16v, 1980 bmw 745i turbo, 1987 mitsu starion esi-r

    Past- 82 vw scirocco, 93 mitsu mirage, 83 vw GTI, 79 BMW 733i euro, 86 mercedes 16v cosworth, 1988 bmw 325 IC, 1990 saab 900 turbo,

  2. Member WackyWabbitRacer's Avatar
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    02-21-2011 12:59 PM #2
    You don't remove the existing lower suspension mount. Instead the outer skin (ie panel) is pried back to access the captive nut.

    Either borrow or buy a Bentley service manual. The repair procedure is in the Body & Interior section.

    Cheers, WWR.
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  3. Member Big CADDY's Avatar
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    02-21-2011 03:21 PM #3
    I just used a cut off wheel and made two or three little cuts and folded back the area. replaced the nut and welded the hold back shut. It's pretty simple if you have the tools.

    THe bentley explains it .

    I'd replace the nut and hold the nut in place with the bold and zap it a few times with the welder.

    also, never tap hard when you try to get those bolts in because it can break that nut loose.

  4. 02-22-2011 11:10 AM #4
    ok, great I have a bentley so I will look at the procedure I never really looked for it there, I will be more careful this time
    Current 1991 audi 200 20v turbo waggen, 1990 vw cabby 16v, 1980 bmw 745i turbo, 1987 mitsu starion esi-r

    Past- 82 vw scirocco, 93 mitsu mirage, 83 vw GTI, 79 BMW 733i euro, 86 mercedes 16v cosworth, 1988 bmw 325 IC, 1990 saab 900 turbo,

  5. Member deathhare.'s Avatar
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    02-22-2011 11:31 AM #5
    Use a torque wrench.

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    05-04-2012 06:01 PM #6
    This is probably a dumb question, but would it be ok to get to the captive nut by drilling a 34 mm hole right next to it? The surrounding area seems pretty stout & I have scirocco brace for it, but I wasn't too sure if it would hold up.

  7. Member WackyWabbitRacer's Avatar
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    05-04-2012 09:16 PM #7
    That approach may work providing the hole gives enough access room to remove the old captive nut and weld a new nut.

    The new nut needs to be welded securely several places around its perimeter.

    Good luck, WWR.
    WWR
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    05-04-2012 09:20 PM #8
    Thanks alot for the input, I really appreciate it.

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