HumberSS Posted August 15 Share Posted August 15 6 hours ago, Mof said: The industry is moving to 10.9 bolts now. We wedge the problem areas open with chisels, knock out the rust, and squash it shut again with hydraulic g clamp It's not pleasant Thanks man. I'd rather fully deal to it while it's apart. Is what I'm proposing ok? Quote Link to comment Share on other sites More sharing options...
Mof Posted August 15 Share Posted August 15 It'd be a big job to do that. You'd have to talk to a heavy certifier first. We're not allowed to use heat to get the rivets out also. Quote Link to comment Share on other sites More sharing options...
440bbm Posted August 15 Share Posted August 15 How many rivets are there to remove? We used to have a massive air powered chisel that was designed to pop them out in a couple duggas. was so much fun to use and so much faster than cutting any other way. was a just a bit sketchy as they could go flying LOL May be the go to try hire one maybe? As above we used to just bolt back in, but most stuff went for LT400. I can recall one where we had to replace a crossmember and were allowed to do it with bolts but it was a bit special because it was for some reason 'non structural' type deal. LT400 isnt that hard or expensive if all you are doing is seperating for treatment. Definately go chat to the local heavy cert guy as will give the clairty you require. if you get an OK now and dont do it right would suck to have to go back and re-sort again later. Quote Link to comment Share on other sites More sharing options...
johnny.race Posted August 15 Share Posted August 15 Decades ago I used to work at Motor Trucks Industries in Palmerston North. The Mack's and ERF's came into the country CKD. I used to work in the chassis side of the house. My foreman was always anal about the cleanliness of the inner and outer frame rails being before we riveted them together. He obviously knew something but I'd never even heard of the term 'Heave' back then. The chassis were put together wearing primer. This primer had been sanded down by a DA in places in order to get rid of the drill swarf (and sticking out bits) from when we used to drill the chassis to suit the customers required wheelbase. In hindsight, if both the inner and outer rails took a detour through the paint shop to get a decent coating of non porous paint prior to turning up at the chassis department - the potential for heave in those chassis' would be somewhat diminished I'm thinking. 4 Quote Link to comment Share on other sites More sharing options...
HumberSS Posted August 16 Share Posted August 16 12 hours ago, 440bbm said: How many rivets are there to remove? We used to have a massive air powered chisel that was designed to pop them out in a couple duggas. was so much fun to use and so much faster than cutting any other way. was a just a bit sketchy as they could go flying LOL May be the go to try hire one maybe? As above we used to just bolt back in, but most stuff went for LT400. I can recall one where we had to replace a crossmember and were allowed to do it with bolts but it was a bit special because it was for some reason 'non structural' type deal. LT400 isnt that hard or expensive if all you are doing is seperating for treatment. Definately go chat to the local heavy cert guy as will give the clairty you require. if you get an OK now and dont do it right would suck to have to go back and re-sort again later. I dunno, at a guess about 30-40 a side. Just to be clear the truck is on WOF so would not require LT400. Agree would suck to have to backtrack later, maybe I need to talk to my cert guy who's covering off the engine swap stuff? Quote Link to comment Share on other sites More sharing options...
kws Posted August 20 Share Posted August 20 I know you need a cert for manual conversions if you change/modify the brake pedal, no way around that. But what if my car happened to have the unmodified auto brake pedal fitted at time of WOF? As long as it doesn't interfere with the clutch pedal, would it pass a WOF? Quote Link to comment Share on other sites More sharing options...
cletus Posted August 21 Share Posted August 21 as long as it met all the other criteria in the modification threshold, in theory, it should pass. 1 Quote Link to comment Share on other sites More sharing options...
gibbon Posted August 23 Share Posted August 23 If a car has a rego and a cage, is there anything about cutting the cage out that would jeopardize the road legality? Quote Link to comment Share on other sites More sharing options...
shizzl Posted August 23 Share Posted August 23 36 minutes ago, gibbon said: If a car has a rego and a cage, is there about cutting the cage out that would jeopardize the road legality? Generally cars aren’t required to have a very for a cage. So unless it states a cage on a very plate you’ll be fine. every rallycar requires an authority card every year to be exempt from requiring a cert for a cage, unless other mods require a cert (coilovers usually kicks this clusterF off). Quote Link to comment Share on other sites More sharing options...
gibbon Posted August 23 Share Posted August 23 12 hours ago, shizzl said: Generally cars aren’t required to have a very for a cage. So unless it states a cage on a very plate you’ll be fine. every rallycar requires an authority card every year to be exempt from requiring a cert for a cage, unless other mods require a cert (coilovers usually kicks this clusterF off). Basically there's a car I'm looking at that has a cage welded in, and rego is on hold. Looks like it started to turn into a track car but never got finished. Good to know about the cert, I'll ask about that for sure Are there any roadworthiness issues around cutting the cage out? The rego may be on hold but I'm worried about taking it in for a wof and being told something like "nah this has had a cage in it, it'll never go on the road again" Quote Link to comment Share on other sites More sharing options...
shizzl Posted August 23 Share Posted August 23 If the cage is cut out fairly flush and tidy, I doubt you will have an issue. We did the same to an rx2 back in 05 only mounting points would be on the floor/turrets anyway. seeing that reg is still active then no revin to open up a can of repair cert worms. covered in carpet/trims. It’s a win 3 Quote Link to comment Share on other sites More sharing options...
FraserNZ Posted September 3 Share Posted September 3 I am looking at purchasing a vehicle that has had an after market electric power steering unit added to it that has not be certified. I assumed that was a modification which would require cert but I can't see a specific section in the Certification Thresholds that would be triggered by this change. Appreciate if anyone can point to LVVTA documentation that clarifies the situation. Note that the original car would not have had any power assistance. To add further challenge for me the car is out of town (like the other end of the country) so inspection is no easy. Quote Link to comment Share on other sites More sharing options...
tortron Posted September 3 Share Posted September 3 https://lvvta.proboards.com/thread/649/installing-electric-steering-column 1 Quote Link to comment Share on other sites More sharing options...
cletus Posted September 3 Share Posted September 3 29 minutes ago, FraserNZ said: I am looking at purchasing a vehicle that has had an after market electric power steering unit added to it that has not be certified. I assumed that was a modification which would require cert but I can't see a specific section in the Certification Thresholds that would be triggered by this change. Appreciate if anyone can point to LVVTA documentation that clarifies the situation. Note that the original car would not have had any power assistance. To add further challenge for me the car is out of town (like the other end of the country) so inspection is no easy. If it's not in the threshold= needs cert. The modification threshold only lists the stuff that can be done without a cert. Adding electric ps definitely needs cert, and they can be problematic as it adds load to parts that didn't have much load on them previously, plus the kits you can buy generally don't comply with lvv requirements due to welded shafts etc 2 1 Quote Link to comment Share on other sites More sharing options...
RXFORD Posted September 3 Share Posted September 3 Screenshot from Virm and also from Lvv Thresholds Issue 6. Theres is very few things that don't require cert when it comes to modified steering systems, covered by Chapter7 1 2 Quote Link to comment Share on other sites More sharing options...
FraserNZ Posted September 3 Share Posted September 3 @cletus, @RXFORD & @tortron thank-you for pointing me in the right direction, much appreciated. 1 Quote Link to comment Share on other sites More sharing options...
shizzl Posted September 3 Share Posted September 3 The ps column I have in my shop has a uj that requires a round shaft with a machine flat section on it. how legit is it to machine a factory steering shaft to slide into that? no welding required. Quote Link to comment Share on other sites More sharing options...
Raizer Posted September 3 Share Posted September 3 Wobble nuts/bolts for pcd change, I see in the lvvta info that they "should not be used" on a vehicle getting a cert. But what about WOF? No spacers etc just wobble hardware with snug hub centric rings locating the wheels? Quote Link to comment Share on other sites More sharing options...
tortron Posted September 3 Share Posted September 3 Should not isn't must not 2 1 Quote Link to comment Share on other sites More sharing options...
Raizer Posted September 3 Share Posted September 3 2 minutes ago, tortron said: Should not isn't must not Good point, the wheel spacers that failed cert on the Merc were never spotted by anyone in NZ until it went for the cert, so I doubt anyone at the local vtnz is going to spot wobbly nuts lol Oh lol and after all that with the spacers falling cert it turns out they were a factory fitted Mercedes part with the optional upgrade Carlsson wheels, not that it matters in the slightest now. 1 1 Quote Link to comment Share on other sites More sharing options...
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