17-06-2020, 10:39 AM
The distributor should be a fairly snug fit in the dynamo housing and secured by a 1/4" bolt down through the plate at the base, which additionally clamps the body via a pinch bolt, also with a 1/4" bolt sideways into the dynamo casing which locates in a groove in the distributor casing and prevents it pulling out vertically. Step one I suggest is to check all three are tight, unless as Peter suggests, you are talking about internals.
In that case is the rotor arm loose on the shaft? (They often are, but should be quite tight). Otherwise most likely the distributor bushes are worn. It wouldn't do any harm to lift the distributor out & check the drive gear teeth are in good order, there have been a number of failures on new parts from certain suppliers.
In that case is the rotor arm loose on the shaft? (They often are, but should be quite tight). Otherwise most likely the distributor bushes are worn. It wouldn't do any harm to lift the distributor out & check the drive gear teeth are in good order, there have been a number of failures on new parts from certain suppliers.