Douglas Thomson Posted September 30, 2015 Share Posted September 30, 2015 Hi,I am enjoying the first stages of the build.I am unable to tighten the upper spring damper bolts (M8 caphead) to the exact 20 nm value required because I can't get the standard Halfords torque wrench near.I have tightened the bolts to what feels like the right torque using an alan key comparing with the easily accessible lower bolts.Any suggestions?Kind regards,Douglas Link to comment Share on other sites More sharing options...
6speedmanual Posted September 30, 2015 Share Posted September 30, 2015 Spring balance pulling tangentially to the key? Or just do them up properly tight by hand if you have a feel for these things. Link to comment Share on other sites More sharing options...
Area Representative paul richards Posted September 30, 2015 Area Representative Share Posted September 30, 2015 Impossible to get a torque wrench on many of the bolts. Just do them up by feel if they are not easily accessible. Apart from engine the only time I use torque wrench is rear hubs and wheel nuts. Link to comment Share on other sites More sharing options...
John Vine Posted September 30, 2015 Share Posted September 30, 2015 Would a socket extension bar help? Maybe used with a universal joint? JV Link to comment Share on other sites More sharing options...
Douglas Thomson Posted September 30, 2015 Author Share Posted September 30, 2015 Thanks for the suggestions. Link to comment Share on other sites More sharing options...
DJ. Posted September 30, 2015 Share Posted September 30, 2015 I used a crowsfoot attached to the torque wrench at 90 degrees with a hex bit, but a ball ended allen key driver is probably the easiest way.Duncan Link to comment Share on other sites More sharing options...
martyn Posted September 30, 2015 Share Posted September 30, 2015 Remember that any attachment that offsets the centre of rotation (I believe a crows foot does) will invalidate you torque wrench's scale. Some attachments will have a correction figure on them so that you can adjust accordingly. Link to comment Share on other sites More sharing options...
Leadership Team Garry7 Posted September 30, 2015 Leadership Team Share Posted September 30, 2015 Ball ended - long allen key is how I did it. Torque wrench worked well on that. Link to comment Share on other sites More sharing options...
griffchris Posted September 30, 2015 Share Posted September 30, 2015 Agreed, I'm a week or two ahead of you on a 420R build, haven't found anything yet that isn't reachable with a combination of extension/wobble bars, crows feet wrenches, socket UJs and ball ended allen key driver. I have to say i've also found a low range torque wrench useful, lots of fixings between 10 and 20 nm which are difficult to do accurately with a big range torque wrench. Link to comment Share on other sites More sharing options...
John Vine Posted October 1, 2015 Share Posted October 1, 2015 Ball ended - long allen key is how I did it. Torque wrench worked well on that.Assuming a ball-end allen key has a 90-deg bend in it, how did you attach the torque wrench? (My toolkit doesn't contain any such keys -- hence the question,)JV Link to comment Share on other sites More sharing options...
elie boone Posted October 2, 2015 Share Posted October 2, 2015 http://www.google.be/search?q=socket+allen+key+ball+ended&biw=1242&bih=540&source=lnms&tbm=isch&sa=X&ved=0CAYQ_AUoAWoVChMI1eGjnqekyAIVQYAaCh0koQHe Link to comment Share on other sites More sharing options...
John Vine Posted October 3, 2015 Share Posted October 3, 2015 Thanks, elie. I didn't know such things existed!JV Link to comment Share on other sites More sharing options...
Leadership Team Garry7 Posted October 5, 2015 Leadership Team Share Posted October 5, 2015 Thanks Elie, these are great for installing the front end - some challenging angles! Link to comment Share on other sites More sharing options...
Douglas Thomson Posted October 30, 2015 Author Share Posted October 30, 2015 Hi,Great advice thanks.Douglas Link to comment Share on other sites More sharing options...
Jaggies Dad Posted October 31, 2015 Share Posted October 31, 2015 Hi All, I'm new to the Forum and I've just ordered my 420R kit and looking for any guidance from previous builders to help me prepare for the build. I'm struggling to find relevant previous posts. Can anyone direct me?Thanks Link to comment Share on other sites More sharing options...
Leadership Team Garry7 Posted October 31, 2015 Leadership Team Share Posted October 31, 2015 Welcome to Blatchat,There will be loads of advice for you, some will depend on the particular questions you ask as you go along.Whilst you are waiting it's a good idea to download the build manual from the CC website and go through that several times to familiarise yourself with the layout and order of things.The other big thing is man cave preparation, perfect excuse to sort out the garage and buy those tools you always wanted ( the build manual will give you a good idea of the minimum requirement).The waiting will drive you mad! Plan all this stuff over 6 months to keep you occupied :-)) Link to comment Share on other sites More sharing options...
Member Jonathan Kay Posted October 31, 2015 Member Share Posted October 31, 2015 The point about changing the angle on torque wrenches has been made.If you're new to this (as I was) it's important to get some sense of feel for the different forces as well as using a torque wrench. I don't think most assemblers buy a low-range torque wrench, but if you do there's a recent discussion.Have you found the Club discounts at Halfords and others?I treated myself to all the tools I needed, with the exception of the engine hoist and the wrench and big socket for the rear hubs. There are some very generous Members out there...Apparently (!) it's also a good idea to buy a multimeter and get familiar with it. IMHO people waste a lot of time trying to fix electrical problems without one. Draper 60792 at Amazon.Jonathan Link to comment Share on other sites More sharing options...
griffchris Posted October 31, 2015 Share Posted October 31, 2015 I'm finishing off my 420r build now, my best advice would be to scrutinise as many recent build blogs as you can find e.g. Andrew Bissell, Daniel French, Caterham Capers, LawrenceR - these will tend to pick out most of the unexpected challenges that aren't mentioned in the manual. I got the Caterham Draper toolkit which is good if a little expensive - also try to predict all the other little bits and pieces you might need in advance - far too many to list here but things like a supply of spare bolts, nuts and washers, plastic tubing and funnels for fluids, heat shrink, paint pen for marking bolts etc etc etc. Link to comment Share on other sites More sharing options...
Jaggies Dad Posted October 31, 2015 Share Posted October 31, 2015 That's brilliant - many thanks. Link to comment Share on other sites More sharing options...
Rattie Posted November 2, 2015 Share Posted November 2, 2015 Hi MartynIf you position the crow's foot at 90 degrees to the long axis of the wrench, you remove the offset and the torque is correct.Martyn Link to comment Share on other sites More sharing options...
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