Possible Modifications to 1991 300ce?
Last edited by AMGDave; Apr 7, 2011 at 10:44 AM.
My thought is whatever money I spend to pick that car up (1, 2, 3, 4k whatever) is money that could be put directly back into Bucky to get it repaired sooner. If I get that car in the meanwhile, I'm further away from solving my problem.
My thought is whatever money I spend to pick that car up (1, 2, 3, 4k whatever) is money that could be put directly back into Bucky to get it repaired sooner. If I get that car in the meanwhile, I'm further away from solving my problem.
OTOH, if the white car isn't roadworthy for some reason but has a good motor, well, there's your donor engine! Then you could put your old motor on the engine stand, take it apart, rebuild at your leisure (if the bottom end isn't shot), and put it back in the white car later on.
Multiple options here, but as long as you can get the white CE for a decent price, I'd seriously pursue that route. If it's really nice, drive it and fix Bucky. If it's crap, swipe parts from it to get Bucky running, then fix up the white one as you have time. Never hurts to have a parts car around!
Awesome night

Going to do the brush pack replacement for now, though I really want to do the AL166x swap :\
Last edited by Saijin_Naib; Apr 14, 2011 at 11:10 PM.
The Best of Mercedes & AMG
Mechanically it's a bolt-on, btw, and electrically too if your current alt has threaded posts instead of blade connectors (only the smaller units have blades, 70A for sure, maybe 80A too). 90A+ all have threaded post connectors.
If your old alternator has blade-type connectors, you will need to either cut off the old connectors and crimp/solder on ring connectors, or (better yet) upgrade to larger wires from the junction block on the fender to the alternator.
Various photos are here. You don't need to go crazy like I did with dual 4ga cables. A single 4ga or dual 8ga would be plenty for a 120A unit.
http://www.carpartsdiscount.com/auto...ml?3593=102861
http://www.dragtimes.com/images-clas...0691573612.jpg
Is that actually it? Looks like posts with nuts on them to lock tabs down in place.
Also, it says that the AL66x is external fan, while the AL0169x is dual internal fan. Does this matter?
AL66X (Advance Auto Parts)
Pulley Diameter (Inches):1.97
Pulley Diameter (Millimeters):50.00
Pulley Style:6S
Fan Type:External
Regulator Plug
Clocking:10:00
Voltage:12
Pulley Included:YES
Terminal Connections: D+
Plug Style:381
Internal Regulator:Yes
Regulator Type:Internal
Fan Included:Yes
Amperage:80
AL0169X (Advance Auto Parts)
Pulley Diameter (Inches):1.97
Pulley Diameter (Millimeters):50.00
Pulley Style:
Fan Type:Internal
Regulator Plug
Clocking:3:00
Voltage:12
Pulley Included:YES
Terminal Connections: D+,W
Plug Style:381
Internal Regulator:Yes
Regulator Type:Internal
Fan Included:Yes
Amperage:120
Last edited by Saijin_Naib; Apr 20, 2011 at 03:39 PM.
The fan is irrelevant, btw. The internal is nicer, IMO.
AL-0169x:
If that is not the case, why would the Bosch Part Finder not show the AL0169x as an option? I know it was used on the later 3.2l m104 in the 300se, so I figure it should work, right?
http://www.boschautoparts.com/Vehicl...AT=Alternators
Called Bosch.us hotline, a tech should get back to me eventually. Fingers crossed.
Last edited by Saijin_Naib; Apr 20, 2011 at 04:01 PM.

All the serpentine-belt alternators shown in the spreadsheet I linked to above are interchangeable. Think I have AL 0785X on most of my cars. Bolt patter in the same. The newer/larger units may have a slighly larger bolt hole but that makes no difference for installation or operation.
Don't expect Bosch to tell you anything other than the original unit fitting. They aren't in the business of custom mods & upgrades and don't want the liability in case you booger something up along the way.
I think I'm going with the AL0169x then. It seems like a big enough upgrade (an additional 50% over my al66x) without going crazy.
Thanks for the assistance Dave
I mean, unless you're running a monstrous sound system and some crazy lights, I never imagined needing one.



