Seat runner rvinut spinning

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davestevenson
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Seat runner rvinut spinning

Hi All.

I've just switched from the Caterham road harnesses to proper 4 point ones, so seats out. Murphy's law being what it is, on putting the last allen headed bolt securing the seat to the runner back in, it starts spinning - NOOOO! Double whammy of it being the one right in the middle of the runner, so very little access to do anything.

So I've pulled the seat back out and managed to release it again, but what's the perceived wisdom on how to re-fix or replace the rivnut? At present I haven't even managed to confirm whether the thread inside is still good or not :-/

I do have a bag of the rubber rivnuts, but I suspect they're going to expand too much and foul the runner movement.

Thanks.

elie boone
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If it's a steel rivnut just a spotweld would be enough to fix it.

Wrightpayne
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Borrow a rivnut tool and re-squeeze it. You can also do this with a nut & bolt.

davestevenson
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Thanks. I'll give it a go.

I'm just hoping it's not that I managed to cross thread it and have a damaged thread in there. But I guess if I squeeze it tight again then I can always drill the head off to get it out if that is the case.

Bricol
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If it's a steel rivnut, don't borrow someones aluminium riv-nut tool - or you'll be buying them a new one after you snap it.

A suitable screw, washer and nut will work to pull it down if the thread is good.

elie boone
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Rather than using a bolt which has to be M6 to squeeze the rivnut i would try to use a spacer and  a vice, in the worst case you might need to clean up the tread.

Bricol
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Last seen: 6 hours 41 min ago
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Thinking he wastrying to do it in situ.

Admitedly, at the last place of work, the overhead cranes would have made your suggestion percectly possible in-situ too :)