datlow Posted June 29, 2022 Share Posted June 29, 2022 Block of timber to go over the intake just incase 1 1 2 Quote Link to comment Share on other sites More sharing options...
Popular Post cletus Posted June 29, 2022 Popular Post Share Posted June 29, 2022 20 hours ago, Testament said: My fan/radiator sharn - stock copper rad and stock 1974 Fiat Magnetti Marelli electric fan > RX3 aftermarket radiator and spal fan mounted as a pusher fan in front of the radiator. so pretty much same story as everyone else, factory fans are was better than any normal aftermarket stuff ive seen. the depth constraint, is it all across the radiator or just in a few areas? some factory fans are only thick in the center where the motor is so if you can offset so the motor clears? The 2 tight spots are where the water pump and alternator are, there are other areas where a motor could go but they are not really areas where you could fit a big fan in I have gone in a different direction for now, a mate is making a fan shroud and I'll use some sort of engine driven fan, either this stock steel fan or a alloy/steel flex fan, they are both 17" I wanted to stick with electric because Hp- but no use making another 10hp if I can't drive it because it goes chernobyl Noise, it's not that bad anyway, can't hear shit over all the whizz psh noises Efficiency, it's carb and turbo so I'm a wanker if I think a fan makes any difference I'd done fancy wiring to the fans, well now I have 2 spare 15a potential accessories at the front, maybe a light bar and a winch? If it's still no good maybe a small auxiliary radiator and fan. Even with no shroud it's better than the electric fans, fingers crossed a shroud fixes it completely 11 Quote Link to comment Share on other sites More sharing options...
yoeddynz Posted June 29, 2022 Share Posted June 29, 2022 5 hours ago, datlow said: Block of timber to go over the intake just incase That "FUCK!" he seez at the end - hahaha... I so know that feeling. When something mechanical goes wrong, I'm not sure what but I know its bad. 3 Quote Link to comment Share on other sites More sharing options...
peteretep Posted June 29, 2022 Share Posted June 29, 2022 Anyone dealt with laser welders? Seems interesting This video they are welding 12mm plate which isnt ideal for it IMO, but seems like it would be legit for thin stuff. More talking about a working environment vs car work 1 Quote Link to comment Share on other sites More sharing options...
NickJ Posted June 29, 2022 Share Posted June 29, 2022 yep, quite common in production of small fiddly stainless stuff, not sure if anyone in NZ is set up for it though? We have stuff sourced out of Europe that has extensive laser welding, very pretty and low overall distortion. Quote Link to comment Share on other sites More sharing options...
yoeddynz Posted June 29, 2022 Share Posted June 29, 2022 I friend in blighty does it and among the jobs he's done was one where he welded the fins back on to a 911 barrel (iirc.. I think it was a barrel, or something too costly to just replace) Does a neat job where there's very little room, no mess, no clean up needed. 1 Quote Link to comment Share on other sites More sharing options...
rusty360 Posted July 2, 2022 Share Posted July 2, 2022 On 29/06/2022 at 20:52, peteretep said: Anyone dealt with laser welders? Seems interesting This video they are welding 12mm plate which isnt ideal for it IMO, but seems like it would be legit for thin stuff. More talking about a working environment vs car work Used quite a bit for tooling repairs in nz, farking amazing to watch on a big screen, tiny little beads can build up in like 0.1mm steps, was a game changer for fixing fark ups or repairs. 2 Quote Link to comment Share on other sites More sharing options...
63Ragtop Posted July 4, 2022 Share Posted July 4, 2022 Dunno if this is the right place to ask, but here goes. On the left we have one of my nice new heads for my engine rebuild. On the right is the old one. As it was 20 years ago I forget that the og one were flycut, the cleanish ring around the edge of the chamber. I think this was done to release another pony or two? Should I get the new ones cut the same? Any experience or knowledge on this? Quote Link to comment Share on other sites More sharing options...
kws Posted July 4, 2022 Share Posted July 4, 2022 Does anyone have experience with getting a large dent out of the usually mostly flat bottom of a steel fuel tank? It looks like someone has put a jack under the sd1 tank and it's dented up right where the pickup is and it's causing me grief. The dent is more or less right below the hole for the fuel sender but i could only fit something like a broom handle in (small hole, only for a sender not pump) and don't want to turn the underside into a dimpled golfball-like mess. I have seen videos where they block all the holes in the tank and then use compressed air to expand the tank. Quote Link to comment Share on other sites More sharing options...
tortron Posted July 4, 2022 Share Posted July 4, 2022 That would probably work well. You can also fill with water and weld some pins on to pull the dent out Depending on the shape of the dent and how stretched it is, a suction cup might also work. A shrinking disk can be useful if it keeps popping back in. You can make one from a pot lid. Sometimes you can just tickle the area and it will shrink just right to pop it out. Creates heat tho so not sure how I'd approach a fuel tank with that method (couldn't fill with water as you want the heat, spot welds probably best to shrink and fill with water) Probably not a good spot to put something inflatable In either 1 Quote Link to comment Share on other sites More sharing options...
HighLUX Posted July 4, 2022 Share Posted July 4, 2022 Fill with water block up the holes and use a waterblaster like hydroforming? 1 Quote Link to comment Share on other sites More sharing options...
yoeddynz Posted July 4, 2022 Share Posted July 4, 2022 9 minutes ago, kws said: Does anyone have experience with getting a large dent out of the usually mostly flat bottom of a steel fuel tank? It looks like someone has put a jack under the sd1 tank and it's dented up right where the pickup is and it's causing me grief. The dent is more or less right below the hole for the fuel sender but i could only fit something like a broom handle in (small hole, only for a sender not pump) and don't want to turn the underside into a dimpled golfball-like mess. I have seen videos where they block all the holes in the tank and then use compressed air to expand the tank. 2 Quote Link to comment Share on other sites More sharing options...
kws Posted July 4, 2022 Share Posted July 4, 2022 I havent got a photo of my tank because its always dark at the moment, but you can see a fuel tank in the photo attached. Its on the left, ahead of the axle. Mostly flat on the bottom. Mine has a large dent in the bottom, right at the back, like someone has lifted the car from it on a hoist or jack. I guess i could try a plunger, but i have no idea how thick/strong the steel is Quote Link to comment Share on other sites More sharing options...
87creepin Posted July 4, 2022 Share Posted July 4, 2022 Could also use a slide hammer with the glue on attachments. Works just like spot weld dent pulling. Quote Link to comment Share on other sites More sharing options...
tortron Posted July 4, 2022 Share Posted July 4, 2022 10 minutes ago, 87creepin said: Could also use a slide hammer with the glue on attachments. Works just like spot weld dent pulling. Oh Yeah got any old engine valves? I have used those plus hot glue to pull dents before 2 Quote Link to comment Share on other sites More sharing options...
Nominal Posted July 4, 2022 Share Posted July 4, 2022 When I did that to a gas tank I took it to a man who mostly straightened it out using levers etc through the sender hole. Quote Link to comment Share on other sites More sharing options...
kws Posted July 4, 2022 Share Posted July 4, 2022 1 minute ago, Nominal said: When I did that to a gas tank I took it to a man who mostly straightened it out using levers etc through the sender hole. Was said man a local man that does this for money? Quote Link to comment Share on other sites More sharing options...
datlow Posted July 4, 2022 Share Posted July 4, 2022 Pretty sure some used a Radiator shop ? Maybe more for splitting open and removing rust actually Quote Link to comment Share on other sites More sharing options...
Nominal Posted July 4, 2022 Share Posted July 4, 2022 31 minutes ago, kws said: Was said man a local man that does this for money? Oh, it was Rod Clifton up in Te Horo years ago. But radiator shop maybe or something like that. Quote Link to comment Share on other sites More sharing options...
dmulally Posted July 4, 2022 Share Posted July 4, 2022 On 29/06/2022 at 12:05, dmulally said: Hi All, Im looking at converting a small block chev to diesel. The only diesels I have played with have been on tractors and that usually consisted of me swearing a lot. I have acquired a 4BE1 from an Isuzu elf (I assume) but was pulled from a range rover. Before I do anything I want to floor test this engine. Can I get a couple of pointers on how to do this safely please? I was going to wedge on wood and hook it up to an engine crane so it doesn't flop over. Questions: 1. Is the fuel line going to the front of the injector pump the inlet and the one at the rear the return? Can I just throw them both into a jerry can? 2. Do I need an electronic lift pump in line or if I put the jerry up higher will that be enough? 3. I have no idea how to turn it off. There is a single wire coming off the injector pump. Is that the on/off switch and should I just put 12v to that for "spark"? 4. Why do I do this to myself? I could retire if it weren't for dumb shit projects. Thanks in advance! I'll film the first attempt to blow it up if anybody wants. Right then. Started first kick. Now to find a gearbox for it. 8 Quote Link to comment Share on other sites More sharing options...
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