dynamo / regulator problems

[GuidoDieringer]

Hi from Germany,

the batterie of my Traveller gets loaded with only 9 - 12 Volt.
(9 V idle).
I checked the current flow on the plugs already. It works fine.
Does somebody know what the problem is??
Is it the regulator?

Thank you

Guido

[chesney]

Have you tried with revs? Dynamo won't put any charge in at idle.

[bmcecosse]

Does the red light go out? And yes - we need a volts reading with the engine held at good revs, and then again with the headlights and heater fan running - again at good revs. Most likely to be the brushes in the dynamo - but is the fan belt nice and tight.?

[GuidoDieringer]

checked that!!
Voltage at revs is 12,5 Volt much too low!!

I think it's the brushes or the regulator.
Is the regulater adjustable?

Guido

[Trickydicky]

Check the brushes first, the regulator box is usually reliable.

[bmcecosse]

I agree - new brushes first. Then worry about the reg.