I think what Haynes might mean is there is no need for the
electro-mechanical cut-out and voltage/current regulator as used with the
dynamo.
The early alternators had an external regulator, on the later alternators it
is internal but they still have one, i.e. Haynes is misleading if not
actaully incorrect. The Leyland Workshop Manual states that "The
construction of the 16ACR alternator is similar to the 16AC except that a
voltage regulator of micro-circuit construction is incorporated in the
slip-ring end casing". It also calls the external regulator on the 16AC the
"control box" but this is just a hangover from the dynamo control box
terminology since Clausager states that the 16AC used a remote electronic
control unit on 1967/68 cars, later cars used the 16ACR, the 17ACR and
finally the 18ACR.
PaulH.
http://freespace.virgin.net/paul.hunt1/
-----Original Message-----
From: Eric Erickson <eric@erickson.on.net>
To: mgs@autox.team.net <mgs@autox.team.net>
Date: 24 April 1999 15:56
Subject: Failed Voltage Regulator
>OK... I have just had a partial meltdown (lots of blown globes and
>holders and switches) with the cause stated as "voltage regulator
>failed". On the repair list from the auto-electrician they state: "4TR
>voltage reg. = $45.00"
>
>Now Haynes says "The alternator is provided with diodes which rectify
>the alternating current produced, and also prevent reverse current
>flow. NO CUT-OUT OR CURRENT REGULATOR IS NEEDED" (my emphasis).
>
>So, what have I got here... am I looking at the same things i.e. voltage
>regulator / current regulator? Have I had something fail that shouldn't
>be there in the first place? Forty five bucks is an expensive little
>item and I just want to know a little more about it.
>
>I was also thinking that these same guys "re-built" my alternator three
>months ago... should this "regulator" have been part of the deal and
>therefore should I really pay for its repair (and all the damage it
>caused - we are talking hundreds of dollars of parts here) so soon?
>
>Grrrrrr, if I could get ONE win I would be a happier person!
>
>
>
>Eric
>'68MGB MkII
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