RE: Alternators, schmalternators

["Avi Meron" <avi@cosmoslink.net>]

This is not  much help for your conversion idea just the opposite......
I, too had a problem with the existing set-up and I was almost ready to go
the same route (110Alt.) instead, I did the following:
Put a smaller pulley on the alternator, an Audi part
Got a new battery,my old one was trying to die all the time....
Made sure that I checked the charging voltage at the BATTERY.......not
anywhere else,

The results are:
With the AC on (max) and the headlights on, driving lights on, spot lights
on (total draw of the lights is 650 Watt=54 AMP) the batterry charging
voltage at 1300RPM is 13volts
Who could ask for more?..................
Avi




-----Original Message-----
From:	owner-quattro@coimbra.ans.net [mailto:owner-quattro@coimbra.ans.net]
On Behalf Of DeWitt Harrison
Sent:	Saturday, August 15, 1998 1:26 PM
To:	quattro@coimbra.ans.net
Subject:	Alternators, schmalternators

To make a veeeery long story short, I have concluded that
the Bosch 90A (AL27X) alternator doesn't have quite enough
reserve to operate the electrical system on my 88 5kcstq, as
it exists today, when the A/C is running and the ambient air
temp exceeds 85F. Therefore, I am going to covert to a 110A
unit like the latter 200s. (If you have charging system
troubleshooting advice, thanks very kindly indeed but I've
already tried it. Trust me.  If anyone has actually made
direct measurements of alternator output current, I would
be interested in your data for A/C compressor running and
cooling fan in stage 3, hot day.)

The 110A unit requires a different mount (natch).
Consequently, I would very much appreciate a little
help from someone holding a micro-fiche for a
90 or 91 200tq. Please double check my P/Ns where
I have them and fill in the blanks where I don't. I sure
would like to avoid those nasty little last minute surprises.

Mount                034 903 143 B   (Note 1)
Air intake cover  054 903 193      (Note 2)
Air duct             054 903 653      (Note 2)
Mounting bolts   N 100 520 01    (Note 3)
Washers for mounting bolts   ????
Pulley for 110A                   ?????
Cooling fan blade for 110A   ????
V-belt size for 110A             ????

Notes:
1. Reuse existing block attachment hardware.
2. For 3B application - no bumper mounted air intake.
3. Qty. of 2, replaces single M8x100 alternator
    retention bolt for 90A.)

Many thanks in advance.

DeWitt Harrison
Boulder, CO
88 5kcstq