Dorset7 Posted February 24, 2015 Share Posted February 24, 2015 I could well be being an idiot but......what's the torque setting for the bolt that secures the radius arm to the DD tube flanges (I think it's 25 foot pounds but it seems a touch low?)The assembly guide says to fit the bolt and nyloc but doesn't mention the use of any washers - is that correct or am I missing something?Thank you. Link to comment Share on other sites More sharing options...
Area Representative paul richards Posted February 24, 2015 Area Representative Share Posted February 24, 2015 Radius arm to dedion tube is 0.5 inch x 2.5 inch bolt. No washers. Nylock nut. 60 lbs ft (82 Nm). Link to comment Share on other sites More sharing options...
Area Representative paul richards Posted February 24, 2015 Area Representative Share Posted February 24, 2015 In fact all 0.5 inch bolts on rear suspension are 60 lbs ft. The exception is radius arm to chassis bolt which is 3/8ths and 35 lbs ft (48 Nm). Link to comment Share on other sites More sharing options...
Dorset7 Posted February 24, 2015 Author Share Posted February 24, 2015 Cheers Paul, out of interest where did you get that from? The only radius arm figure I can get is 25 in the guide!? Link to comment Share on other sites More sharing options...
Dorset7 Posted February 24, 2015 Author Share Posted February 24, 2015 That's the table in my guide? Link to comment Share on other sites More sharing options...
Guy Lowe Posted February 24, 2015 Share Posted February 24, 2015 According to my build manual the only bolts torqued to 60 lbs ft. on the rear suspension are the A frame bolts, the rest are either 25 or 35 (exc. Watts Link). Even the diff mounting bolts which are 1/2" should only be 40 lbs ft.Confused of Camberley Link to comment Share on other sites More sharing options...
Dorset7 Posted February 24, 2015 Author Share Posted February 24, 2015 Confused from Dorset here too - conflicting information makes my brain hurt! Link to comment Share on other sites More sharing options...
Guy Lowe Posted February 24, 2015 Share Posted February 24, 2015 Quoting Arnie Webb on Facebook 3/8 unf bolts 20-25lb/ft, 1/2 unf 45-50lb/ft (this latter value may have been uprated to 60 I think, in more recent years)That could explain Paul's figures, my oppologies Paul Link to comment Share on other sites More sharing options...
Area Representative paul richards Posted February 24, 2015 Area Representative Share Posted February 24, 2015 From my assembly guideIs your guide referring to the watts linkage radius arm? Link to comment Share on other sites More sharing options...
Dorset7 Posted February 24, 2015 Author Share Posted February 24, 2015 Its giving the same figure for both Paul, its confusing the hell out of me! Time to place a call to the factory I fear!? Link to comment Share on other sites More sharing options...
Area Representative paul richards Posted February 24, 2015 Area Representative Share Posted February 24, 2015 No need to ring Caterham. If it's 1/2 inch bolt it's 60 lbs ft. Link to comment Share on other sites More sharing options...
Dorset7 Posted February 24, 2015 Author Share Posted February 24, 2015 I'm going to jam with 60, 25 seems far to low. Link to comment Share on other sites More sharing options...
Guy Lowe Posted February 24, 2015 Share Posted February 24, 2015 12 years of ownership, 30,000 miles, lots of track days, 1 full bare chassis rebuild, 2 new diffs, 1 new DD tube & 2 sets of new shocks fitted & always tightened to 40lbs without any problems - so 40lbs it will always be for me Link to comment Share on other sites More sharing options...
Dorset7 Posted February 25, 2015 Author Share Posted February 25, 2015 I was chatting with Tim from Sevens and Classics this morning and he confirms what Paul has been saying 60 it is!!Paul - spot on, you're a star! Link to comment Share on other sites More sharing options...
Dorset7 Posted February 26, 2015 Author Share Posted February 26, 2015 Got it all done and torqued up now, thanks very much for all the advice and information offered - it's fantastic that we have the facility to ask those with more experience and they are so ready to help. Link to comment Share on other sites More sharing options...
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