Name: [046] David Rawlinson
Member: 93 months
Authored: 5 videos
Description:

Basic Car Maintenance [ID:022]

a series of video-tutorials by David Rawlinson

David Rawlinson introduces the basics for how to maintain your own car. These first videos are the start of a much larger series.

Video Tutorials

1. How to select and use tools

You should select a tool appropriate and convenient for the job. Most problems encountered are due to seized, rusty bolts or screws. In serious cases the bolt or nut must be drilled out or cut open to permit removal. It is therefore important to select tools carefully to minimise the chance of rounding (damaging) a nut/bolt. Where possible a ring spanner or socket is the best choice. [...]

2. Coolant inspection

Briefly, coolant should not be rusty-coloured. Nor should it be oily. There should be no bubbles coming up to the radiator cap (this indicates pressurisation via broken head gasket). You can usually check the coolant at the radiator cap or expansion tank: Beware, if the engine is warm a blast of steam may escape causing burns! Place a towel over the cap before unscrewing. Coolant should [...]

3. Good Battery

The purpose of this demonstration is to isolate the problem preventing an engine from starting. The video explains how we can tell the battery is ok (because it is able to power a motor that rotates the engine) suggesting the problem lies in ignition and/or fuelling mixture. The requirements of internal combustion are: Fuel (petrol or diesel) Air (oxygen) Ignition (spark on petrol engin [...]

4. Checking the Oil

The oil should be a translucent brown fluid. Black gritty oil is worn out. Milky oil indicates coolant contamination (mixing). Oil should not be consumed (used up, lost) in petrol engines, nor should it leak (anywhere). Low oil levels can greatly increase engine wear. 3gp version for mobile/cell phones. More details on the wiki.

5. Basic toolkit contents

A basic set of tools comprises: socket set (with ratchet) common spanner sizes (ensure you use metric (mm) or imperial (inch fractions e.g. 3/8ths) as appropriate screwdrivers with blade and philips tips, various sizes allen keys crimping tool for electrical connections These will be sufficient for 99% of all maintenance and repair tasks. 3gp version for mobile/cell phones. More detai [...]

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Educating the Open-source Community With Showmedo

Although as important as the software it supports, education and documentation are relatively neglected in the Open-source world. Coders love to code, and explaining how best to use or improve the software tends to be deferred or even sidelined.

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