Casey, the 124 and 126 units are totally different and not interchangeable.
Aaron, from what I understand, one of the connections on the early diesel is supposed to see -12v while the early gas unit sees +12v (or vice-versa). There was also a change from the early gas units to late, as seen in the EPC... something like 86-87, 88-90, and 90-up (approximately). I have no idea what the difference is there. If you install an early gas unit in your diesel, I suspect either something won't work right, or you may possibly damage something - but I'm not sure what. I vaguely recall reading a post with more details a couple of years ago but I can't remember specifics - sorry! As for Armageddon, well, what with all the earthquakes, tsunamis, and hurricanes in the past 10 months one has to wonder...! (Besides Wilma, there was a 6.5 quake in Japan yesterday too; and the Pakistan death toll is nearly 80k now.) ;-) -- Dave M. Boise, ID 1994 E500 - 95kmi (Q-ship) 1987 300D - 260kmi (Sportline) > ------------------------------ > Date: Wed, 19 Oct 2005 13:29:13 -0700 > From: Zeitgeist <[EMAIL PROTECTED]> > Subject: Re: [MBZ] Climate control (1987 300D) > > ...and as a corollary, are these different from the versions in > '86-'87 W126 SDLs? > > On 10/19/05, Aaron Lam <[EMAIL PROTECTED]> wrote: > > Speaking of which, what is so different about the 87 diesel PBU when > > compared to run-of-the-mill 124 PBUs? What happens if the latter is > > installed in an 87 diesel? Will Armageddon ensue? > > Casey > Olympia, WA > Biodiesel: > '87 300TD intercooler (210k) > '84 300D (204k)
