took my 90 amp alt apart in the late 90's (the one in my I4 powered
westy). Noted loose sleeve in the blind bearing housing at "back" or
alt..

replaced  both bearing and used shim stock to tighten up plastic
sleeve. worked fine for another 10 years.

alistair
'86 syncro 7  passenger
'82 westy, diesel converted to gas in '94
http://www.members.shaw.ca/albell/
http://shufti.wordpress.com

On 15-Apr-10, at 10:32 AM, Arkady Mirvis wrote:

I am sure that many will agree with me on doubtfull quality of made
by Bosch
alternators installed in Vanagons. They are mechanically unreliable.
I am
pointing to the bearing on a small end. In my Westy I spotted the shaft
wobbling  after 14,000 miles. The nylon sleeve the bearing had as a
seat was
very loose on the bearing and in the bore. The bore became out-of-
round and
had conicity. I decided not to bother with opening the bore and making
larger sleeve and got another alternator remanufactured by Bosch. Out of
curiocity I took it apart and witness the bearing and the sleeve to be
loose. That alternator had even shorter life. The seat was enlarged and
TOLERANCE RING installed. The problem was cured.
Speaking alternator. The original Bosch 33 x alternator has 2
capacitors.
Most alternators I've seen on Jettas do have one capacitor. Example
Bosch 27
X ( I do have one new ). Can somebody explain to me what the second
capacitor is for.
Can I use Bosch 27 X alternator when I want in My 1987 Westy?
Thanks in advance.