Date: Wed, 25 May 2011 11:43:26 -0700
Reply-To: Old Volks Home <oldvolkshome@GMAIL.COM>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Old Volks Home <oldvolkshome@GMAIL.COM>
Subject: Re: Update on the alternator story
In-Reply-To: <50758.69872.qm@web45312.mail.sp1.yahoo.com>
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Martin -
That Bus Boys blurb was written by me for them in the late 90s and
while Bentley doesn't address the fitment issue, the Bosch catalog
does. The difference is in the brush length and the size of the Slip
Ring the brushes contact.
The best way to determine what regulator is correct for you 65amp
alternator is having the original VW and/or Bosch number from the
alternator, usually on a foil sticker attached to it. But, over time
these can disappear. Another Bosch sticker (if its a remanufactured
unit) would be the AL number. Once we know what alternator it is, a
proper voltage regulator can be found out.
The 1.9TD was never installed on North American Vanagons in the early
80s that I know of, so I dunno if the alternator from the original 1.6
is the same or swappable to the 1.9 diesel.
The button-style regulator is usually installed on alternators with
28mm slip rings. I cannot remember what the size of the slip ring is
for the the rectangle style regulator, but I know it's not 28mm.
--
Jim Thompson
84 GL 1.9 "Gloria"
84 Westfalia 2.1 "Ole Putt"
72 411 Station Wagon "Pug"
75 914 1.8 "Nancy"
Full Timing Since March 1999
oldvolkshome@gmail.com
http://www.oldvolkshome.com
***********************************
On Tue, May 24, 2011 at 10:22 PM, Poppie Jagersand
<poppie.jagersand@yahoo.ca> wrote:
> So I just found a note on busboys web site that might explain the short life of my replacement regulator.
>
> --- On Sat, 5/14/11, Poppie Jagersand <poppie.jagersand@yahoo.ca> wrote:
>> I have two regulators, a round Bosch and an square unnamed.
>> The Bosch ran for 15 years, then brushes wore a bit short,
>> so I replaced it in the last trip with the aftermarket, that
>> I had pulled off another alternator (but given the brush
>> length must be near new). This worked for about 400km while
>> I drove home, but quit in the next trip.
>
> Here is from busboy's site:
> -------------------------------
> http://www.bus-boys.com/charging84diesel.html
> Y. 070-903-803A Bosch Internal Voltage Regulator, Rectangular Housing with Brushes (30062), 1981 $18.00
>
> Z. 068-903-803B Bosch Internal Voltage Regulator, Round Button Housing with Brushes (30091), 1981 to 1984 $53.85
>
> NOTE: Voltage regulators must be installed like for like. Do not install a round button housing regulator into an alternator originally equipped with a rectangular housing regulator or vise versa. Damage will occur to both the regulator and alternator if these parts are mis-matched.
> ------------------------------
>
> The Bentley manual of course said nothing about this. Bentley only said that a condensor should be fitted when replacing with a newer regulator if not already there. But I had that.
>
> There seems to be a zillion different part numbers for the Bosch regulators, many which are likely compatible. Some that are not. Would this be the right replacement for the 65A Diesel alternator?
>
> http://cgi.ebay.ca/ws/eBayISAPI.dll?ViewItem&item=230566083676&ssPageName=STRK:MEWAX:IT
>
> I agree with Dennis and others that it's time to start saving for a rebuilt. But I should have a working spare voltage regulator also. And that is a small thing that can be mailed to me quickly. Figuring out where to best buy (and how to ship at a reasonable rate -- I'm in Edmonton, north western Canada)
>
> Another alternative is to look for a used alternator in low milage junk yard cars.
>
> Do the alternators from any of the newer VW or other cars fit the Vanagon Diesel?
>
> I understand that a lot of the 80's VW had a similar alternator housing to the Vanagon Diesel, but I may need to change the sprocket. However these are likely to have alternators as worn as mine.
>
> Thanks,
> Martin (and Poppie '82 Westy 1.9TD)
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