[T2] Bosch alternator with internal regulator

[c.dreike]

Robert,
as for the slip rings, a good machinist could take a light cut on the 
rings to true them up and then turn a  pair of copper rings to press 
onto the original rings. A tough job given that the new press on units 
would be a bit on the thin side. Cannot use loctite to "glue" them on 
due to the low conductivity of the loctite.

Chris
64DD Kamper Kit


On 10/23/2017 3:07 PM, Robert Mann wrote:
>                 Bosch alternator with internal regulator
>
>       My early ('73) alternator has the regulator internally, with 1 wire
> thru a hole in the casting at the top front.  I gather Bosch changed design
> surprisingly often, so that some details will vary.   The regulator turns
> out to be a literal black box, sealed, no apparently user-serviceable
> parts, Made in Australia, brand Ingram.  I assume this is a replacement
> part, tho' Bosch had an Australian factory I believe  ...
>
>        The senior auto electrician George had concentrated on VW from
> earlyin the peak region of their air-cooled history.  He has accumulated a
> dozen 36mm nuts!  Visible defects he found included muck impeding the
> spring-loaded brushes, easily cleaned and likely to collect more current
> from the slip rings.  Sure enough, on his classic bench test rig, 50 A is
> delivered, and the discharge warning light goes off at high revs and stays
> off at idle.  On those criteria, we have my problem fixed.  However, the
> copper is largely worn from the slip rings and George thinks they may serve
> only a short mileage.  We wonder if anyone has electroplated new copper
> onto slip rings.  The rotor of which they're a part looks to be removable
> (term 'armature' reserved for generators with those plurry commutators we
> came to dislike  -  not to mention the pesky DC regulators  – vibrating
> iron angle-irons with sparking points).
>
>
> I suppose I could slap on The Samba an illustrated jotting about early
> alternators.  Anyone cooperate in making it much fuller than I can?
>
>
> Robt Mann
> '73 1600dp Devon
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