There is nothing that can be done other than to replace the affected part. In order to keep some of these affected magnetos in good working order, we organised the manufacture of foundry patterns and arranged for small batches of new castings to be made.
We are often asked if we can convert fixed ignition magnetos to manual control of advance and retard. Quite straightforward as long as a replacement bearing/cam housing is available. This conversion is commonly requested for BTH magnetos and we fairly quickly ran out of spare housings. We now have the new castings for two types of BTH bearing/cam housings available to satisfy this demand.
We have used these castings in the course of overhauling and repairing our customer's magnetos and are pleased to make them available as a stand alone item for others with access to the required facilities to carry out the necessary machining themselves.
PLEASE NOTE - These are all new castings which will need to be machined before they can be used. Sorry, we are not able to supply ready machined castings. Nor can we supply detailed drawings at the current time.
In the pictures below, the red parts are the foundry patterns made specially for us by a time served pattern maker.
HOW TO BUY:
These castings can be purchased direct from us, For all customers, both in the UK and overseas, the price indicated includes postage/packing. There is no more to pay, everyone pays the same all inclusive price wherever they are located. A full invoice will be included with all purchases. Payment can be taken using PayPal by clicking on the Buy Now button associated with each casting.