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Lower chin spoiler
Posted: 05 Jul 2006, 23:23
by Stevie H
While trying to undo the lower chin spoiler on my caravelle I found that all the screws just turned and turned. Obviousy the captive nuts have 'grown' onto the screws making them impossible to remove without grinding them. My question is: If I grind the screws off what is my alternative when refitting the spoiler?
Thanks in advance.
Posted: 05 Jul 2006, 23:40
by Ivor Brownun
I have seen other posts where they say they are riveted.
Posted: 06 Jul 2006, 09:06
by Ian Hulley
I believe they're supposed to be fitted with 'rivnuts' (a hollow,threaded, rivet insert which acts as a captive nut). You'll have to drill or grind the old ones off and replace them.
Ian.
Posted: 06 Jul 2006, 22:09
by Stevie H
Thanks for that! I drilled them out today and it is the rivnut thingys you refer to. Only 3 stayed intact.

Are they available anywhere?
Posted: 07 Jul 2006, 08:06
by Ian Hulley
Options are :- buy a rivnut kit ... i.e. the crimping/riveting tool to put then in and an assortment of rivnuts (IIRC they cost ~£30) OR pop along to your local small garage and ask if they'll do it for you, I'd have though quite a few would have these kits in and do it for you in exchange for a blue beer voucher.
Cheers,Ian.
Here ya go :-
http://www.lightaero.co.uk/las/30?part=RIVNUT