Alternators, schmalternators

[DeWitt Harrison <de@aztek-eng.com>]

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