sjl1 Posted October 28, 2017 Share Posted October 28, 2017 Started replacing the small bolts holding rear wings on with nylon equivalents today and the lower front wouldn't come out and ended up spinning the rivnut which is a nuisance. Can anyone suggest how to deal with this please?many thanks Link to comment Share on other sites More sharing options...
TomB Posted October 28, 2017 Share Posted October 28, 2017 Cut the head off with a dremel rotary cutter so you can remove the wingIf the rivnut is turning, there isn't much you can do apart from remove it and replace with a new one. Link to comment Share on other sites More sharing options...
Wrightpayne Posted October 28, 2017 Share Posted October 28, 2017 If you can get the bolt out you could try re squeezing the rivnut with the appropriate tool.some maybe all rivnuts are accessible by drilling out the rivets on the inner trim panel. You can apply some penetrating fluid and get some grips on it Ian Link to comment Share on other sites More sharing options...
TomB Posted October 28, 2017 Share Posted October 28, 2017 I've just drilled them out previously and replaced them. Try pressing any domed skin around the hole before replacing them, which really isn't difficult with a rivet tool. If the hole is properly Mankee, you're probably better off with repositioning them and putting new Holes in the wing. Link to comment Share on other sites More sharing options...
sjl1 Posted October 29, 2017 Author Share Posted October 29, 2017 Thanks for the replies, think i will cut the head of the bolt with a dremel and just leave it, dont think it warrants removing the inside panel for just one bolt. I suppose i could try cutting the outside end of the rivnut off with the dremel and pushing it through without damaging skin, hmmm Link to comment Share on other sites More sharing options...
Jim 123 Posted October 29, 2017 Share Posted October 29, 2017 Have you tried dosing the bolt with lots of WD40 and leaving to soak so that it penetrates down into the thread (not easy with the wing in place). Then using a a mole wrench try to pull the bolt head outward whist turning anti clockwise. You will need to push the skin around the rivnut inward at the same time to encourage some compression bite. An extra pair of hands might just bring some luck.Anecdotally I have heard that you can reseat a blind rivnut if you can get a length of threaded steel into the hole with the threads loosely engaged, and then tighten up a washer and bolt on the thread from the outside which recompresses the fixing. Never tried it myself. Link to comment Share on other sites More sharing options...
Member Jonathan Kay Posted October 29, 2017 Member Share Posted October 29, 2017 Have you tried dosing the bolt with lots of WD40 and leaving to soak so that it penetrates down into the thread (not easy with the wing in place). Then using a a mole wrench try to pull the bolt head outward whist turning anti clockwise. You will need to push the skin around the rivnut inward at the same time to encourage some compression bite. An extra pair of hands might just bring some luck.I was wondering about getting some bite by angling. But ordinary WD-40 isn't a very good penetrating oil: how about PlusGas or similar?Jonathan Link to comment Share on other sites More sharing options...
JNC Posted November 1, 2017 Share Posted November 1, 2017 Try a small flat blade electrical screwdriver , push the screwdriver under the rivnut and turn so it stops it turning while undoing the bolt Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now