View Single Post
  #12  
Old 04-20-2017, 05:56 AM
jay_bob's Avatar
jay_bob jay_bob is offline
Control Freak
 
Join Date: Oct 2011
Location: Columbia, SC
Posts: 3,942
Quote:
Originally Posted by jake12tech View Post
Put on a 115a alternator from an om606. Less stress on your battery and charging system. Those old 70a alternator are dinky. If you find an e420, or e430 at the yard they also have 115a alternator.
Good idea. I did that to my 124.

Just be sure to get the wiring harness and the distribution block from the donor too. The existing harness in the 87 has a plug in connector (that can go weak) while the larger alternators have a bolted connection which is much more reliable.

The extra capacity is helpful when running with heavy load, like the lights, wipers, blower, rear defrost all going at once, and you're still trying to top up the battery from the glow and start cycle.
__________________
The OM 642/722.9 powered family
Still going strong
2014 ML350 Bluetec (wife's DD)
2013 E350 Bluetec (my DD)

both my kids cars went to junkyard in 2023
2008 ML320 CDI (Older son’s DD) fatal transmission failure, water soaked/fried rear SAM, numerous other issues, just too far gone to save (165k miles)
2008 E320 Bluetec (Younger son's DD) injector failed open and diluted oil with diesel, spun main bearings (240k miles)

1998 E300DT sold to TimFreeh
1987 300TD sold to vstech
Reply With Quote