lo-fi

Sounds like a fault in the MAT circuit. You should see 5V between pin 20 and one of the ground pins. Grounding the pin should definitely make the gauge move!! Green or blue pcb?

It tests the internal reference voltage is present at the pin via the resistor R4 (assuming V2.2 PCB, but I believe the circuit is the same on the V3). The other thing to do would be grounding pin 20 and see what tuner studio shows.

Do you get roughly 5V on pin 20 with nothing else connected?

Great idea, just make sure you get one that has equal displacement either side, or have a little reservoir!

The MS just measures the resistance of the sensor, so no polarity issues. I'd maybe check the circuit on the MS board. What version PCB are you running?

That's an interesting idea. I did try to think of what I might be able to use, but didn't come up with anything. Having started the design process, I'm kinda hooked on having something that looks the part, though

Not at all! It's one of those slow burn, see how it goes sort of projects. As much about learning the tools and processes as it is actually building something. I'll bundle up a few files and send over now I've finalised dimensions. Stainless would be pretty cool, but that's a hell of a lump of steel, or a lot of machining to take chunks out of the inside. Ali might be an option.

"Take my money!?" What's the most convenient file format to send you the model in? OnS supports export to parasolid, solidworks, STL and a few others I can't think of right now. What material options do we have, and what's the rough cost for each? Thank you, really do appreciate it!

Which figure do you mean?

Well, you weren't joking about that, were you! $2000!! Thought I'd check it out, just for a giggle. Though that's printed solid, and whole lotta plastic!! I can get it down to $350 euros by making it hollow, which is sensible, of course! i.materialise will do in multicolour for £68, though, which is an acceptable punt, I think! It'll be great to check my work and see how it looks in the solid before going any further.

As qwakers says, a little investigation is wise. It's hopefully not so bad that the engine was running with no oil. Did it over rev? That's usually the worst case scenario. Turbos aren't hard to remove or fit, apart from potentially some stuck nuts and bolts (they live in a hot environment). You can tell a lot just by removing the hose from the turbo inlet, grabbing the nut on the front of the compressor wheel and wiggling it around, though. A healthy turbo will have no detectable axial play, and a little radial play. What the AA man means by "the turbo is knackered" is probably this: The turbo bearings have worn, meaning that the oil seals are no longer able to do their job. This has allowed oil to leak out into the inlet, and this is what your engine was running on. Once the bearings wear beyond a certain point, the turbo compressor or turbine can rub against the housings and wear themselves away, meaning not a lot is salvageable. But before jumping to conclusions, whip that inlet hose off and give that turbo a jiggle. Agreed with Fridge about the scrapper turbo - I've seen some shocking cheap recons - but do the same test before fitting anything.

Just to add to what chicken drumstick said: in some diesel engines the timing is even different between NA and turbo engines of the same design. A diesel without a turbo is a horrible, horrible thing IMHO. There's a reason every modern diesel has a turbo bolted to it... Anyway, this guy is active on here, and has published this great piece: http://www.landyowners.co.uk/index.php?topic=3923.0

No, that relates to an actual trailer in the "optional equipment" section that was offered as an accessory, not the towing limit of the Land Rover. A very, very different thing. Does yours not have the plates on the bulkhead? If not, might I suggest your purchase some? You can run round in circles looking for a magic number in a book, but what's actually fixed to the vehicle has to be the de facto measure, and I can't see how that would fail to satisfy your official's criteria. See tacr2man's post.

No, the rules are clear, as are the plates. There is a vehicle maximum laden weight, a maximum towing weight (which is often smaller than the maximum laden weight - go figure) and a max laden weight or MAM for the trailer, which has to be under what the car is rated to tow, regardless of what the trailer is loaded to. The rest is dictated by your license. I'd find it odd if the manual and plates don't match, and in any case, the plates take would precedence - you can't lose or reasonably have the wrong plates.

In case anyone is interested, I've made the project public so anyone can view it: https://cad.onshape.com/documents/5bee2f2e199b94dc6493a74a You don't need an account or to install any software - just click the link and it'll load the model so you can view it in 3D, scroll around and pick through how it's made. If you sign up for a free account, you can even take your own copy and play around yourself. Onshape is procedural, so the stack of operations on the left is what makes the resulting parts in the list at the bottom left. If you change something below the stack from the result, you'll see the changes propagate down to the result. It's a very, very cool engineering tool! I can highly recommend the tutorial videos too. Enjoy!

Pahaha. Now where did you think I got the idea from? Thank you There's just something so right about a capstan on the Series, I couldn't resist, and I love the simplicity with no brake, wiring, motor or anything to worry about. It's as much for the fun of engineering it as anything else, though.

Now that's something I hadn't found on my travels round the internet. Thanks, I'll definitely be looking into it!

Cheers Bowie, just love this kind of stuff Hehe. I have toyed with the idea of buying one, Simon, but still serious dollar for something with decent resolution. One of my clients has one, so I might see if we can work out a deal...

Oh cool! Must similarly beastly! The balancing was funny... As it fits on a landy hub, I figured the tyre fitting place would be able to fit it on their machine. So I popped down the road to my local place, answered the inevitable "what on earth is that?" questions, and they stuffed it on the balancing machine with the appropriate arbor and span it up. The guy glanced at the display, which was reading 0.00 0.00, took it off and said "that's perfect mate. Good job". I'm sure the tyre balancer isn't *that* accurate, but it runs true and smoothly at any rpm. The circular parts were cut on a home made circle cutting jig for my plasma cutter and the fins were carefully machined stacked together and weighed after to verify they were identical. I made a jig to hold it all, tacked it carefully and thoroughly before seam welding, and it came out as true as you like. Fun project, that.

The thought had occurred Going to rake one out of the garage tomorrow to measure up. I used a landy stub to mount my 12hp hoover impeller, which was very successful!

Development with onshape is incredibly fast! Really getting tha hang of it now. Another couple of hours and I've modeled the mounting flange and output shaft of the gearbox (to scale) and created a much better winch drum model. Drum support bearings need to be arranged, which is why I've not touched the inside of the drum yet. I have a few ideas, but I'll need to settle on which bearings to use and how to arrange, mount and secure them before moving on to that.

Ohh! Thanks, I'll give you a shout for a price when I'm happy with the design

It's possible, and something I can explore once I've finished prototyping. When I'm happy with the design, I'll order one of the quick and dirty prints to see how it looks in the solid, tweak it if needed and look at options.

Good good. Hope the temp spike didn't do any damage!

Thanks guys, I'll keep the updates coming I was inspired by this guy scratch building a gas turbine for his bike: http://jetandturbineowners.proboards.com/thread/734/building-ju-02-gas-producer As you can see, his 3D print and home casting work rather well! His other thread for the MK1 turbine and bike is long, but well worth a skim through too. Dude got skills: http://jetandturbineowners.proboards.com/thread/53/landspeed-bike-diy-gas-turbine