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Heelboard Captive Nuts


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#1 bananaman

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Posted 27 May 2009 - 06:57 PM

Is this going to be painfull?

I've replaced my sills, done almost all of the bodywork, and then I took off the rear subframe so I could repaint the underside of the boot floor.

As I expected, two of the bolts that go into the heel board snapped, and I have managed to get one out.

My problem is that on the other one, it look like the captive nut inside the heel board has broken loose and is spinning.

I have had a good dig around in the read bins and cant feel the mountings, so am I right in assuming that I need to open the sills to get to it?

It's the pass side top bolt.

#2 Mattl

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Posted 27 May 2009 - 07:03 PM

Is this going to be painfull?

I've replaced my sills, done almost all of the bodywork, and then I took off the rear subframe so I could repaint the underside of the boot floor.

As I expected, two of the bolts that go into the heel board snapped, and I have managed to get one out.

My problem is that on the other one, it look like the captive nut inside the heel board has broken loose and is spinning.

I have had a good dig around in the read bins and cant feel the mountings, so am I right in assuming that I need to open the sills to get to it?

It's the pass side top bolt.


Yes thats how you get to the original nut. The other option is to weld a new nut directly into the heelboard.

#3 dave21478

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Posted 27 May 2009 - 07:13 PM

....As I expected, two of the bolts that go into the heel board snapped, ....


If it was expected, why didnt you resolve this while the sills were off?
Anyway, its done now, so no point brooding on it.

Cut the remaining bolt and shove the remains into the sill, then carefully drill out the hole in the heel-board to the right size so that a replacement nut can be wedged into the hole. Screw a bolt in to protect the threads whilst welding, and once you are certain its sitting straight, carefully and thoroughly weld the nut to the surrounding heelboard.

#4 bananaman

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Posted 27 May 2009 - 07:21 PM

The guy who replaced my sills cleaned the ends up and sprayed WD40 all over them (although that was two years ago), and I have sprayed the same plus the new freeze lube stuff from Halfords on them for the last two weeks, but then I have taken rear subbies off three times, and have yet to have one come off without a bolt snapping.

This is the first time I've had the captive nut go though.

Thanks for the advice, may not be as bad as I thought then.

Cheers,

Tony

#5 davejf

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Posted 27 May 2009 - 07:47 PM

Hi,
I had this happen to me. Its not too bad if you have got rid of the rear bins. I cut a hole in the sill inside the car right above the nuts, you can then just put a normal nut on, which is what i did. If you want a photo of it, just ask.

Dave

#6 bananaman

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Posted 27 May 2009 - 08:00 PM

Could you stick a photo on here Dave?

I'd really appreciate it.

Thanks,

Tony

#7 davejf

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Posted 27 May 2009 - 08:44 PM

Hi Tony,
Here they are, anything else you just want to know just ask.
You will need to modify a spanner/make something to get in there as it is quite narrow

Dave

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#8 miller 666

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Posted 27 May 2009 - 10:19 PM

i need to take my subbies off soon and now im worried about this, could you not stick something like a flat head screw driver down the side to jam it to get the bolt out?




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