CwazyWabbit
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Posts posted by CwazyWabbit
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Since this is my day job, if you get any info on the internals or need any pointers then just ask, I2C and SPI are no problem. I'm off on holiday for ~2 weeks after tomorrow so don't hold your breath for a quick reply though. Check out the BusPirate from Dangerous Prototypes, if there is any sort of communications going on it will sniff it out & let you tinker with it.
A 555 is a very simple timer, there are a squillion reference designs out there for it, you just need it to run as an oscillator, one of its most common uses. There will be reference circuits & calculations in the 555 data sheet. The Megasquirt Stimulator board is a basic variable-speed 555 oscillator that should get you 99% of the way there.
You can do the same thing with two transistors, almost any book on electronics should turn up a circuit for you, as should google with the usual caveats about enthusiastic amateurs
Thanks for the offer of help on our group project Mr Freezer
Sounds like we are back at school Hopefully we'll have results before you get back from Holiday... but if we don't then we may be knocking on your door!
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When i got Digidash to sort my Td5 speedo out, he bent the black metal ring back at the front of the dial to get the back off the speedo.
So i would suggest removing the torx screws and then bending the metal ring back to see if it comes apart.
If i do take my binnacle off soon i will see if i can get photos/look at to see if i can see what he did.
HTH
Cheers for that info, sounds like the way I went about dismantling the VDO tacho I checked out previously.
Interesting that digidash take what I would have thought is a heavy handed approach, although the back of that ring is well hidden when it's inserted back into the binnacle.
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Dont let the three torx head screws in the back fool you. These things just dont fall apart. I did remove them. but couldnt get the back cover to move. didnt want to risk breaking mine so went the long way and hence the run up circuit.
A photo of the back cover. there is a seam right around the edge suggesting that the back cover comes away.
Does the seam look glued?
If I can't get it apart someone mentioned there looked like a 3 pin programming port. I could connect up a logic analyser to see if I see a recognisable protocol in use and work from there, so it isn't a total disaster if I can't look inside, just means it will take longer.
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I'll take you up on that offer if you are serious, I have a number of different programmers here that we use when reverse engineering at work.
Not having seen a TD5 speedo close up do they look easily openable? I'd be fairly confident about not breaking it, I'll back up the eeprom contents before modifying anything so even if I fail I can return the speedo to you as it was.
In fact I'll offer you the guarantee that if I break your speedo or return it in a condition you are not happy with then I will source you a replacement, would that be a deal you'd be happy with?
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Seems like a hell of a lot of faffing about to save £200 a year
Bit more than that if you are running it on cherryade......
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A worn clutch would slip and may smell like it's burning. How are you noticing the overheating? Via the gauge?
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I'd guess the mileage is stored in either an I2C or an SPI eeprom (which is very simple to read and write to without removing from the board), I was looking for a cheap TD5 speedo to take apart so I could work out what else was stored on the eeprom.
You hear stories of these being converted from MPH to KPH but keeping the same face/dial so I would guess this is also possible via the eeprom and maybe even calibration to allow for tyre size.
I had hoped to work this out and post to the forum but I haven't found a cheap one yet and also I'm getting the feeling a lot of people don't want this information out there, personally I think all the dodgy people out there probably already have the information anyway.
How do people on this thread feel about publishing such information?
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Cheers for phoning TFL, just goes to show how badly run the whole thing is when it seems everyone is being told a different story in one way or another...
..... also that a decision on the status of land rovers was awaited from the mayors office.......
If that bit is true it really is 'a bit slack'* as it's less than 6 months till it is implemented and even TFL aren't actually sure what vehicles it applies to
*Replace with whichever suitable phrase springs to mind
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The penalties are £100 a day! Hence why everyone is so concerned, especially as the zone comes out nearly as far as the M25.
I doubt the print out would save you as it has the disclaimer on it saying they are currently updating it, although that has been there for a long while ..... obviously they aren't beating the work experience kids hard enough
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virtually no difference in the actual engines parts just the EDC/EGR parts they were fitted with.
That's pretty much what I was trying to say, but not very successfully, and with far too many words!
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But if as you say it was a replacement engine from turners all the ancillaries will be off the original engine (which was probably a 16L) so you will have a bit of both. For example despite 21L being an EDC engine which would have an EDC injection pump you will most likely have a mechanical injection pump. So a bit of thought will still need to be applied when ordering parts and you can't blindly trust the engine numbering. Sorry if that was already obvious to you and I am teaching you to suck eggs.
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Is this bit taken from the tfl website new? I don't recall seeing it before and I thought I had read most of it a few times ....
Light 4x4 utility vehicles
There are many types of light 4x4 utility vehicle. It is their classification (decided by the manufacturer and the European Union) that determines whether they're affected by the LEZ or not.
Light 4x4 utility vehicles classed as cars are not affected by the LEZ. Those classed as commercial vehicles are subject to the LEZ. This can be found on a VSC registration certificate under 'Body Type.'
Some examples of vehicles that might be used for private purposes but are still subject to the LEZ include:
* Light 4 x 4 utility vehicles, weighing over 1.205 tonnes unladen
So which section wins then?
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I know this sounds silly and I don't know what your garage and drive are like but would it be easier to lower the floor level an inch or two?
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I believe the 21L's were from discoveries
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Was it raining?
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I'm sure theres a lesson to be learned there somewhere
Mo
Oh I don't know ..... it has done 11,500 miles before it was observed to have failed ..... albeit in a cardboard box!
... and if it was airmail then no doubt it has exceeded it's design speed so the waranty will be void
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I agree with Steve, don't run the work light off the reverse light if you need add an extra reverse light add that but for work lights there is often a need to run your engine and then you won't be able to use the light!!
Jason.
You could put the transfer box in neutral.....
Personally I'd have a dedicated switch, or maybe even have it so you can choose based on the suggested wiring for the spotlights. I wouldn't like the idea of the light coming on everytime I put it in reverse as it wouldn't always be needed.
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Just had a phone call from Landrover Customer services, they say that all pre 1998 Defenders regardless of wheather they are SW or hardtops, factory fitted or not are will be subject to LEZ in 2012,
Apparrently DVLA has told landrover that it has reclassified all pre1998 as being Light 4x4 utilty regardless of how it came out of the factory.
NOT HAPPY
I've just spoke to Land Rover Customer services and was told that the DVLA are reclassifying some vehicles, but these are on a case by case basis at the owners request. The DVLA then contact Land Rover to check the reclassification is correct.
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Is this bit taken from the tfl website new? I don't recall seeing it before and I thought I had read most of it a few times ....
Light 4x4 utility vehicles
There are many types of light 4x4 utility vehicle. It is their classification (decided by the manufacturer and the European Union) that determines whether they're affected by the LEZ or not.
Light 4x4 utility vehicles classed as cars are not affected by the LEZ. Those classed as commercial vehicles are subject to the LEZ. This can be found on a VSC registration certificate under 'Body Type.'
Any vehicle designed to carry goods, or more than nine passengers, is classed as a commercial vehicle, even it's only used for recreational purposes. These include:
* All models of pick-up vehicles, including dual cab pick-ups
* Commercial or 'panel van' variants of light utility vehicles (these can be identified by having a goods-carrying capacity in place of seating and metal panels in place of windows)
* Light utility vehicles that have more than 8 passenger seats
If your light utility vehicle is subject to the LEZ, then you can find out about your options
If you think that your light 4x4 utility vehicle has been classified incorrectly, please register your vehicle with TfL
If you have any queries, please contact us on 0845 607 0009.
taken from http://www.tfl.gov.uk/roadusers/lez/17700.aspx#tkt-tab-panel-4
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Mo,
I see where your coming from in the fact it was designed with M16s so in the event of an accident they could blame James for using the wrong parts.
Using that argument you could also argue the use of 5mm plate instead of the original 10mm plate for the part it's bolted to is also a no - no.
I imagine they would have to show it as a contributory cause in an accident as the vehicle is old enough not to require a type approved tow bar.
Caveat to that is I'm not a lawyer and the above is personal opinion .... I would have used like for like if I was doing it.
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In the winter I regularly add 1.5 lts of petrol to 15 ltrs of veg oil and then mix that 50/50 with derv, in my 300 tdi.
I should imagine 5% petrol is a little different to 33% petrol.
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Your way works perfectly Mikey, as they say there are may ways to skin a cat .... but which ever way you do it the cat still ends up skinned
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You could use a three position (3 terminal switch) on/off/on. The common terminal to the relay coil and then the other two terminals one would be from headlights and the other would be permanent 12v. That way when switched one way it would be on with the headlights and the other way it would be on permanent, and off would be off ..
one of these http://cgi.ebay.co.uk/160445166114
but preferably one with spades not screws
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The ribs are items of god given beauty, if you remove them all the kittens in the world will die.
HTH
Mo
That quote made my day And I agree they do look great, wish mine had them.
Sounds like we are back at school 
That quote made my day
TD5 Speedo Mileage run up circuit
in Defender Forum (1983 - 2016)
Posted
Is it possible that crcliffords speedo was done before yours Ralph? Maybe they learnt how to use the 3pin port in between doing the two? Or maybe they used his as an experiment to learn how to modify TD5 speedos, all possible I suppose.