DDEC Wiring Ques on MCI/M-9 6V92TA w/Allison HT740 Auto Trans

[leonaiz2]

I am not only a newbie, but I don't know much about buses except information I have gathered from various bus conversion websites. I am anticipating buying a 1980 MCI/M-9 6V92TA with Allison/Auto HT740. I have not seen it yet (except for Pixs) and I have been advised that the DDEC wiring needs to be hooked up; I am just wondering what is entailed labor/parts to do this. Knowing this would be instrumental when/if I make an offer. I have good information from MCI9.com on what to look for when buying a bus which is more than I had before. I just need "Your" help from this forum so I can make an informed decision.  Thanking You in advance for your cooperation in this matter. Kind Regards, Leona [email][flash=200,200]

[bevans6]

Welcome to the forum, Leona, this is a good place to get a lot of information.  One thing you can do is search on things like DDEC, DDEC installation, things like that, and find previous conversations that are interesting.  I joined in May this year, and just a few weeks ago finished going back page by page - well over 600 pages now - and reading threads of interest to me on many topics.

Your coach probably didn't come with a 6V92TA with DDEC in 1980, it probably had an 8v71 and 4 speed manual gearbox.  So the DDEC is a complete retrofit.  I don't think that's a trivial task, so "DDEC wiring needs to be hooked up" can mean a lot of different things.  Members here are expert, have been there and done that, and can advise you or even get it done for you.

I also found the MCI9.com site useful for education, but please do a search on "Sam Walker" and make your own mind up  if you decide to do business with them.  I have, and had no problems, but others had different experiences.  That's all that needs to be said about that!

Again, welcome.

Brian

[roadrunnertex]

Well the person you need to speak to is Sam Caylor at Caylor Supply in Rantoul Kansas.
Sam will tell you the truth about MC-9's.
785-878-3405

[RJ]

Leona -

Welcome aboard the madness!  Lots of good info available here, as well as www.busnut.com and the MCI busnut group on Yahoo.

FYI, MC-9s in 1980 came with either the 8V71 or the 6V92TA engine, neither of which were DDEC.  The HT-740 Allison is also mechanical, not electronic.

If, in fact, this coach you're contemplating has a DDEC, it has been retrofitted.

Roadrunner is right, the fellow you want to talk to is Sam Caylor.  The other Sam - "Walker", well. . . let's just say he and the judicial system go back a long way, to many a busnut's chagrin.

But before going further, might I ask what you want to do with this bus?  Might help us give you more intelligent answers!

FWIW & HTH. . .