How to tell DDEC series?
 

How to tell DDEC series?

Started by chuckd, February 22, 2012, 10:32:41 AM

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chuckd

There is a 6 V 92 still in an orion bus for sale on e-bay.  item no. 270920167470 The bus is a 1990.  I asked him what DDEC series it is, and he asked how does he tell?  Hmmm good question, how does someone tell what what this version of a 6 V 92 might be?

Chuckd

Ed Hackenbruch

Used to own a 1968 MCI 5A and a 1977 5C.

luvrbus

If it doesn't have the ECM on top check the governor they are different from the mechanical a simple way look for the harness going to injectors under the valve covers or pull the valve covers several things are different serial number won't do much good as people are always going from mechanical to DDEC and back on those engines
Life is short drink the good wine first

stevet903

Looks like a DDEC II from the picture.  Ask him to get you the part number from the ECM label - it's the yellow sticker you can see on the picture.  A DDEC II ECM will have a part number of 7570050-XXX or 7570049-XXX  where the XXX is the software level in the ECM - it could be 141 or 154.

Steve

rv_safetyman

Chuck, 1990 was a transition year from what I can see.  Worse yet, is the delay from the time of purchase by Orion to the production date of the bus.

My guess is that it is a DDEC II.  

From what I can tell, all DDEC II have a 12 pin ALDL rectangular data port.  I think all DDEC III and later engines have a round 6 pin or 9 pin data port.

Jim
Jim Shepherd
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chuckd

Thanks everyone, passed the information on to the seller.  I need a mechanical silver, which may be hard to find, which is why I am looking before I need one.

Chuckd

luvrbus

Chuck, I would not worry to much about your green block 6v92 just run the thing still plenty of greens 6v92 and 8v92's around still running strong just watch the temp and keep adding oil 

good luck
Life is short drink the good wine first