d.p.n.s Posted February 23, 2012 Share Posted February 23, 2012 any reason why Quote Link to comment Share on other sites More sharing options...
Nominal Posted February 23, 2012 Share Posted February 23, 2012 OK, looked in the book instead of guessing - unmodifed ball joint ends from a production vehicle of similar weight are OK. - custom spherical bearing rods ends may be ok if: - 11 conditions follow that I don't want to type out. Section 7.28 of the HCTM So, you may be OK, if they are super-spiffy top quality rod ends with pull-out prevention washers, kevlar lining etc. Quote Link to comment Share on other sites More sharing options...
d.p.n.s Posted February 23, 2012 Share Posted February 23, 2012 whats what i need to hear mate. cheers Quote Link to comment Share on other sites More sharing options...
zep Posted February 23, 2012 Share Posted February 23, 2012 Does the cert plate have to be riveted on? Most I see are. Quote Link to comment Share on other sites More sharing options...
Beaver Posted February 23, 2012 Share Posted February 23, 2012 Does the cert plate have to be riveted on? Most I see are. yes should be attached with 4 rivets to a part of the body/chassis that cant be removed. Quote Link to comment Share on other sites More sharing options...
Vintage Grumble Posted February 23, 2012 Share Posted February 23, 2012 Oh my, so if you have the wled on ones, you would need to get someone to xray them and get proof they are all G? I had an engineering place weld mine up, but knew nothing of this xray biznaz, was a good 2.5/3 years ago tho. Also, how come every other weld on the whole car dose not have to be xrayed, but the struts have to be? ^ Regarding weld on stubs with BC (Reds, they dont have "for motorsport use only" on them as far as I know BTW), from Linglings fred. Quote Link to comment Share on other sites More sharing options...
zep Posted February 23, 2012 Share Posted February 23, 2012 Does the cert plate have to be riveted on? Most I see are. yes should be attached with 4 rivets to a part of the body/chassis that cant be removed. /blind Quote Link to comment Share on other sites More sharing options...
Vintage Grumble Posted February 23, 2012 Share Posted February 23, 2012 Also, how come every other weld on the whole car dose not have to be xrayed, but the struts have to be? It is because of this.. only because the "with stub" ones have the steel strut welded to the cast stub which has always been a no no. Gaz This is odd, because this is how they are done from factory (if I remember correctly) the strut goes through the hub, and is welded at the bottom? Edit: Unless the casing is also cast or some shit? Mine were done like this (as per the instructions) with a few hundred mill of the original tube left on: Quote Link to comment Share on other sites More sharing options...
cletus Posted February 24, 2012 Share Posted February 24, 2012 Righto at the moment, these struts cant be certed due to what ryan said- the strut tube is welded to the cast spindle. this has been a rule for a long time, that you cant weld to a casting or forging. The factory one is welded to the cast part- but because that is done by the vehicle manufacturer ,its ok. There arent heaps of vehicles affected by this, the only ones ive come across so far have been ae85/6 toyotas and late model hondas, they have a cast steering arm welded to the shock body. not just bc either, there are other brands which use the same construction. the ones ive certed that have been welded together have been done how ryans was done- slip the tube over the original (shortened) shock tube, tig welded around the base(10-15mm ABOVE the cast part not to it), 4x plug welds around the top, then crack tested. last time i spoke to the tech guy at LVVTA, he said they were working on it, trying to find out more about the welding process BC uses Quote Link to comment Share on other sites More sharing options...
cletus Posted February 24, 2012 Share Posted February 24, 2012 viewtopic.php?f=17&t=24361&start=20 some pics in here of what im talkin bout willis Quote Link to comment Share on other sites More sharing options...
Vintage Grumble Posted February 24, 2012 Share Posted February 24, 2012 Oh piss. Sooo I shouldnt worry about this just yet (my cars not on the road anyways) and wait to see what the outcome is, regarding the legality of the way in which mine have been welded? I have another curly question for you sir, I have purchased a scooter, which has no licence plate, and due to being 1979 spec, no vin number. I want to reg it for road use again, but neither the LTSA or VTNZ can find the chassis code or frame number in the system, yet the guy I got it off checked four months ago, and swears it was still in the system, and that his local certifier found it when they checked? To reg it, I have to apply to be granted the write to reg it, as I cant prove where it came from, or if it has been reg'ed ever before, and the amount of proof/documentation they want is crazy. Also, IF they grant me the write to reg it, I have to take it through the new one off scooter check, which will be a cunt, as its 32 years old. I have proof of ownership between me and the last owner, and between the last owner and the owner before, so its not stolen or anything. So basically, If I can find the frame/chassis code in the system, all I have to do is fill out one form and reg it, all done, if not, I have to do a HUGE amount of fucking around, and pay for a shit load of checks and paper work. What I dont understand is why the cert man could find the chassis code in the system, but the VTNZ and LTSA could not, wouldnt they all use the same system? Is there any chance you would be able to check for it at some point? Cheers, VG. Quote Link to comment Share on other sites More sharing options...
Snoozin Posted February 25, 2012 Share Posted February 25, 2012 Clint I have been reading/hearing some bits and pieces regarding adjustable arms of any kind not being able to be certed? They wont certify any adjustable arms now unless they have an engineering cert, welds xrayed, witness holes drilled to see thread engagement etc. Thats what i just found out trying to update my cert. I have T3 adjustable rear arms for my 4 link on the KP - they're solid alloy machined to accept the rod ends (teflon lined etc etc) so are these now an expensive paperweight? Quote Link to comment Share on other sites More sharing options...
cletus Posted February 25, 2012 Share Posted February 25, 2012 Clint I have been reading/hearing some bits and pieces regarding adjustable arms of any kind not being able to be certed?They wont certify any adjustable arms now unless they have an engineering cert, welds xrayed, witness holes drilled to see thread engagement etc. Thats what i just found out trying to update my cert. I have T3 adjustable rear arms for my 4 link on the KP - they're solid alloy machined to accept the rod ends (teflon lined etc etc) so are these now an expensive paperweight? only applies to front susp arms in certain configurations, if they are rear arms, and made well, youll be sweet. Quote Link to comment Share on other sites More sharing options...
cletus Posted February 25, 2012 Share Posted February 25, 2012 Oh piss.Sooo I shouldnt worry about this just yet (my cars not on the road anyways) and wait to see what the outcome is, regarding the legality of the way in which mine have been welded? worst case, you could do what a few people have had to do, chop the strut tube off, get a another pair of stubs and weld as described above I have another curly question for you sir, I have purchased a scooter, which has no licence plate, and due to being 1979 spec, no vin number. I want to reg it for road use again, but neither the LTSA or VTNZ can find the chassis code or frame number in the system, yet the guy I got it off checked four months ago, and swears it was still in the system, and that his local certifier found it when they checked? To reg it, I have to apply to be granted the write to reg it, as I cant prove where it came from, or if it has been reg'ed ever before, and the amount of proof/documentation they want is crazy. Also, IF they grant me the write to reg it, I have to take it through the new one off scooter check, which will be a cunt, as its 32 years old. I have proof of ownership between me and the last owner, and between the last owner and the owner before, so its not stolen or anything. So basically, If I can find the frame/chassis code in the system, all I have to do is fill out one form and reg it, all done, if not, I have to do a HUGE amount of fucking around, and pay for a shit load of checks and paper work. What I dont understand is why the cert man could find the chassis code in the system, but the VTNZ and LTSA could not, wouldnt they all use the same system? Is there any chance you would be able to check for it at some point? Cheers, VG. Have you got a chassis number on paper. or are there any numbers on the frame? there must be something if someone found its id before, unless he was telling porkies. if the certifier had access to the system (landata) it would have the same details as a vtnz/nzta agent looking at it Quote Link to comment Share on other sites More sharing options...
bubblegoose Posted February 25, 2012 Share Posted February 25, 2012 only applies to front susp arms in certain configurations, if they are rear arms, and made well, youll be sweet. would a single non welded chunk of appropriately sized chromo bar/thick tube threaded at both ends then fitted with sweet/shiney joints and lock nuts still needs lots of paperwork for the front? Quote Link to comment Share on other sites More sharing options...
cletus Posted February 25, 2012 Share Posted February 25, 2012 if its a radius rod or something like that, then nah usually applies to things like custom upper or lower a-arms Quote Link to comment Share on other sites More sharing options...
danger Posted March 4, 2012 Share Posted March 4, 2012 If I were to build a tube frame chassis, could I legally do so with a MIG or do I need to TIG it? What steel must I use? Do I need to get a drawing pre-approved? Quote Link to comment Share on other sites More sharing options...
cletus Posted March 6, 2012 Share Posted March 6, 2012 space frame chassis can be mig welded. there isnt a specific minimum pipe size, it says it must be of an appropriate size for the application or words to that effect. so it would depend on the weight of the vehicle/engine/design etc buying a hobby car manual would be a good idea if you are going ahead with this idea. its not compulsory to have your design approved first but i would, it would be a prick to build it and have to re do it for some reason Quote Link to comment Share on other sites More sharing options...
danger Posted March 6, 2012 Share Posted March 6, 2012 Do I have to engineer it? ie say what force it should hold etc or can I just design and build it sensibly? Thanks for answer, I'm gonna look into that manual. Just working out if I'm kidding myself to build it or not first. Quote Link to comment Share on other sites More sharing options...
cletus Posted March 6, 2012 Share Posted March 6, 2012 can I just design and build it sensibly? that combined with going through the design approval process, you wont need to supply engineering calcs to prove its strength. Quote Link to comment Share on other sites More sharing options...
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