StuB Posted May 4, 2017 Share Posted May 4, 2017 You may have seen from my other posts that I've had fun and games tonight and ended up stripping two of my wheel nuts. Two questions:How do I stop it happening again, should I apply some grease or copperslip?Do I have the right ones? Car came with Caterham 8 spoke anthracite wheels. The existing nuts have the chamfered edge. I wanted to put on some Minilites and assumed the same nuts would be OK as hole is also countersunk. Interested in people's thoughts. Link to comment Share on other sites More sharing options...
Member Jonathan Kay Posted May 4, 2017 Member Share Posted May 4, 2017 What was the sequence of events that led up to the stripping? First time those nuts had been used with those wheels? Open or closed nuts? Tool used? Torque applied?Jonathan Link to comment Share on other sites More sharing options...
StuB Posted May 5, 2017 Author Share Posted May 5, 2017 Hi Jonathan, the car had been to the garage for a check and I think they'd used an a airgun as the nuts were incredibly tight when I came to remove them. Once I'd put on the new wheels I tightened them slightly while the car was on the jack then fully once lowered. It was then I noticed two just turning. When I removed them their thread was stripped around the bolt. Yes it was the first time these bolts had been used with the Minilites. They are closed nuts and I used a proper wheel nut tool (can't think of proper name) and then was going to use torque wrench. Link to comment Share on other sites More sharing options...
Johnh Posted May 5, 2017 Share Posted May 5, 2017 sounds like someone has damaged the thread by over tightening with a windy gun?if that's the case? new studs and nuts will be required..not a difficult job as long as you get the same studs and nuts as the rest.do up with fingers only then tork up by hand. Link to comment Share on other sites More sharing options...
Paul McKenzie Posted May 5, 2017 Share Posted May 5, 2017 Are the minilites exposing more thread on the studs? Have the studs bottomed inside the closed nut which has then spun and stripped the threads. Either way it means new studs in the hubs, which need to be pressed out and in and need to be aligned properly. Link to comment Share on other sites More sharing options...
Wrightpayne Posted May 5, 2017 Share Posted May 5, 2017 Stu,make sure you go for the slightly longer studs - the std ones only have about 5 threads engaged. Discussion will be in the archives from several years ago. I also have elise mk1 black open nuts.Good luck with the remedy.Ian Link to comment Share on other sites More sharing options...
Member Jonathan Kay Posted May 5, 2017 Member Share Posted May 5, 2017 Are the minilites exposing more thread on the studs? Have the studs bottomed inside the closed nut which has then spun and stripped the threads.That was what I suspected.Jonathan Link to comment Share on other sites More sharing options...
andy couchman Posted May 5, 2017 Share Posted May 5, 2017 Correct torque? I've hear different figures.Andy Link to comment Share on other sites More sharing options...
Wrightpayne Posted May 5, 2017 Share Posted May 5, 2017 75nm for ford fitment wheels. Link to comment Share on other sites More sharing options...
elie boone Posted May 5, 2017 Share Posted May 5, 2017 I never had a problem at 10Nm with Ford wheel nuts, is it possible that the guy with his impact wrench didn't put the nuts on buy hand for a turn or 2 but direct with the impact wrench thus wrecking the nuts ? Link to comment Share on other sites More sharing options...
Member Jonathan Kay Posted May 5, 2017 Member Share Posted May 5, 2017 My 1998 Assembly Guide says: Cars with Ital live axle: 61 Nm All other cars: 75 NmThe current non-160 Guide says: 74 NmThe current 160 Guide says: 100 NmJonathan Link to comment Share on other sites More sharing options...
Member Jonathan Kay Posted May 5, 2017 Member Share Posted May 5, 2017 What's damaged: the nuts or the studs or both?Jonathan Link to comment Share on other sites More sharing options...
DJ. Posted May 5, 2017 Share Posted May 5, 2017 Just thinking about this.1. If the studs are too long for slightly thinner wheels, the nut would torque up, but not pinch the wheel securely. This would mean the wheels wobbled, but is very unlikely to damage the bolt threads.2. It isn't recommended to apply copperslip to wheel nuts. Particularly if they are the closed end type, because grease builds up in the nut and causes a hydraulic lock that prevents the nut seating and will lead to a correctly torqued nut coming loose.3. in my opinion the only way to ruin the threads it to grossly overtighten the nuts and/or cross the threads as the nut goes on. An idiot with a compressed air tool will achieve this easily by not setting it correctly and not making sure the nuts are on the threads properly by hand first.To prevent it happening again, just do it yourself and use a torque wrench. I only ever take my wheels when changing tyres, I don't let them take the wheels off and jack up my Seven in the wrong way. Link to comment Share on other sites More sharing options...
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