Pick-ups and Brushes
We have also put together the comprehensive Brightspark™ range of slip rings and pick-ups for Lucas and BTH rotating-coil magnetos.
They are moulded for us by an established British manufacturer from highest quality materials selected to provide the required dielectric strength, cold and hot. By comparison, many other slip rings and pick-ups on the market today are poorly moulded from sub-standard materials which break down electrically, even when new, at the temperatures to which these components are exposed.
Our slip rings and pick-ups are warranted for two years from purchase against defects in manufacture or construction of the component leading to failure in normal service. No quibbles, except that 'normal service' does not include damage to the component caused by mis-fitting! In the very unlikely event of a failure, tell us, send us the old one, and we'll send you a new one by return and reimburse you the cost of the post.
Pick-Ups
The brush holes in our pick-ups are lined with brass to ensure (1) that the brush can slide easily in the pick-up, and (2) that good electrical contact is made with the brush/spring.
Slip Rings
Approximate main dimensions (in mm) of our slip rings are:
|
Lucas |
BTH |
|
|
Bore diameter |
17.6 |
17.1 |
|
Flange diameter |
53.8 |
49.1 |
|
Track diameter |
32.2 |
28.8 |
The Brightspark™ range also includes high-quality pick-up brushes and earth brushes of the appropriate hardness.
Far too many pick-up brushes on the market are too soft. This leads to rapid wear of the brush. Also, when used in twin-cylinder magnetos, the layer of carbon which deposits on the insulating portion of the track of the slip ring can cause misfires. Instead of the HT current going to the correct sparking plug, it tracks around the slip ring to the wrong pick-up, and thence to the sparking plug in the cylinder on its exhaust stroke which, being at lower pressure, is easier to spark.
To check the hardness of a pick-up brush, draw a few lines with the edge of the end of the brush on a piece of paper resting on a hard surface. After a few strokes, the brush should leave only the faintest of marks on the paper
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Pick-up for BTH magneto. Original part No. SKC87159G1
Pick-up for BTH magneto. Original part No. SKC87159G1
SKU No. SKC87159G1
£12.00
Out of stock
Display prices in:GBP
