Instruction manual

Lubricate contact breaker cam and tappet by :

Remove contact breaker as described on page 74.

Saturate, with a few drops of thin machine oil, the wick mounted in the core of its carry-

ing screw B, Illustration 30.

Push out of the contact breaker body the tappet B, Illustration 31, wipe it with a soft cloth,

smear it with thin machine oil and then replace it.

NOTE—When replacing the contact breaker parts, ensure the backing spring F, Illustra-

tion 31, is fitted so that its bent over end faces outwards.

Illustration 31

Showing component details of Contact Breaker

Contact breaker points.

The contact breaker point separation should be from .010" to .012".

Clean contact breaker points by :

Remove the contact breaker cover.

Examine contacts. (F, Illustration 30.)

If they are dirty, oily, or burnt, they must be cleaned with a fine carborundum stone,

or very fine emery cloth, and afterwards wiped with a cloth that has been moistened

with petrol.

Cleaning is made easier if the contact breaker spring arm A, Illustration 30, is removed.

Examine the contact breaker spring arm and wipe away any rust.

Check and adjust contact breaker point setting by :

Remove contact breaker cover.

Turn over engine till the contact breaker points F, Illustration 30, are fully open.

Insert the gauge (part of spanner 017251) between the two contact points. If the

setting is correct the gauge should be a sliding fit.

If there is an appreciable variation from the gauge slacken the lock nut G, Illustration

30, on the adjusting point and turn the contact point (apply spanner 017251 to its hexagon

head) until the gap is set to the gauge. (Screw the point into the contact breaker body

to increase the gap, or outwards, to decrease it.)

Finally, tighten the lock nut and re-check the setting.