Documentation

Citroen C5 Dragging/Rubbing Caliper

I found some old notes on this on my wiki, and figured someone might find them helpful

There is a known issue with the Citroen C5, where the rear calipers may end up rubbing against the inside of the wheel (rear caliper corrosion syndrom).

Basically the issue is one of water ingress. Corrosion develops between the mating faces where the caliper is mounted to the suspension leg, and the caliper is slowly pushed out at an angle, ultimately causing it to rub against the wheel.

It's identifiable by metal being worn away from the caliper and/or the inside of the wheel.

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Vauxhall Corsa D: Oil Pressure Switch Replacement

Vauxhall Corsa D Failed Oil Pressure Switch

Also known as "My Vauxhall Corsa D is leaking oil from top left hand side of the engine", the Vauxhall (or in some markets, Opel) Corsa D has a known issue with it's Oil Pressure Switch failing.

After some use, they eventually fail and start to leak oil inside your engine compartment - worse, some of this oil can get pushed back into the wiring, and then drawn up into the loom via capillary action - left long enough, a failure of this switch will be followed by failed lambda sensors, airflow sensors and then ultimately, the ECU.

The part is cheap and simple to replace, it really is 10 minutes work.

Make sure you give your car time to cool down first though, you're going to be working in close proximity to the manifold - when that's at temperature it'll happily sear the flesh off your hands.

For those who prefer it, there's a video version at the bottom of the page.

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Generating a Vanity Address for Version 3 Onions

Tor Hidden Services are accessed through a web address ending in .onion. Generally speaking these appear to be random strings of letters and numbers, though they're actually a representation of the public key generated when the operator created their hidden service.

Whilst it's possible to generate a V2 vanity .onion address with eschallot, V3 Onions use ed25519 requiring use of a different tool.

This documentation details how to generate a vanity .onion address for Version 3 Onions

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Generating a vanity .onion address

Note: This documentation only applies to the older V2 Onions, for newer, please see Generating a vanity .onion address for Version 3 .onions.

Tor Hidden Services are accessed through a web address ending in .onion. Generally speaking these appear to be random strings of letters and numbers, though they're actually a representation of the public key generated when the operator created their hidden service.

It is possible, however, to attempt to generate a keypair which will allow you to generate a desired vanity URL, though the process is essentially a brute-force of key combinations, so may take some time.

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Saab 9-3: Rear Pads and Disc Replacement

Replacing the front discs on a Saab 93 is simple, however, the rears are a little more work (in fact, they're a pain in the arse), and you're going to some specific tools in order to achieve the job.

This was performed on a 2010 Saab 93 TTID, but the process should be the same for most model years (and may actually be more or less the same on the Vauxhall Vectra).

Be aware: some of the fixings are extremely tight and have limited access, there will almost certainly be periods where you'll wish you let the garage do the job.

Amongst the usual selection of tools and sockets etc, please ensure you have

  • A selection of longbars/torque wrenches etc (you're going to need to find something that can fit)
  • A E18 Torx socket to fit each of these. You cannot proceed without.
  • A E20 Torx socket  (just in case)
  • A deep 21mm socket
  • An electric or air impact driver (you may be able to proceed without, but there's a strong chance of getting stuck)
  • A small/pocket blowtorch
  • A jack that can lift your car as high as possible (makes more room to work in on the hard bit)
  • Brake rewind tool sized to fit a Saab (the "universal" 2 size ones don't) - I have this kit, the Saab needs disc "M" on there.

You will also need to ensure that you've ordered the correct size replacement discs for your car. You can quite easily ascertain what size you will need.

 

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