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looking for detroit diesel 2 stroke info , I salvaged a 12V92 DDEC , does anyone know if I can convert it to mechanical injection ie is the cam profile and where close enough to put iinjectors and racks etc from a couple of 6V92s or what ever, Doesn't need to run great
Any input would be apreciated
thanks
Jim
I retired just after the big diesels went electronic, so I've never seen one, but I worked on the mechanical versions for years. With that said, I bet you'd have to use old mechanical heads because I'd think the electronic injectors would be completely different. Plus the old Detroits have a camshaft lobe, pushrod, rocker ass'y, etc, for each of the injectors. Then there's the mechanical governor, racks, etc. GoneFishen still works at a Detroit dealership, hopefully he'll post with better information. I'd be curious myself to know what all Detroit changed over. I know they even have a fly-by-wire throttle because some years back a driver was on the C.B. near the Evanston, WY Flying J asking for help with his 8V92 throttle. It wouldn't go above idle and it was on a Sunday of course. He was NOT pleased.
The heads are the same design. The compression ratio is different so you'll have to change piston and liner. The cams I don't know...I might doubt them. You'll need 2 governors 1 for each blower, rack linkage and 4 racks, 12 injectors....If I can think of more I'll let you know but....
Personally I'd prefer the DDEC...but I'm "new school"
__________________ 2001 F250 PSD - Oxford white, 146K, stock minus a welded in magnaflow
Just worked on one in a gen set. Heads are the same, you will need to ask a GOOD parts guy about the cams. You will need 12 Injectors, 1 governor housing and 1 slave governor housing. Racks, rack rods, look into the piston/liner thing also. Gear train should be the same BUT maybe the blower drive gear might be different. Also check on the correct turbo's. Sometimes turbo's are different due to the precise air/fuel mix. Fuel jumper lines and fuel stands. I will think on it tonight.
Also worked on my first 24V-71 gen set. What a nasty engine than is. There is a lot of BS on that engine. Sounded good.
Still like the old dirty dozen, 12V 149's are cool also. those 2 engine will make love to you on the dyno.
__________________
95 F250,XLT, 4WD, Auto Trans,bbshimmed,synthetic trans oil,4:10 gears ,Truck Trunk ,Nerf Bars ,crome Mud flaps, Aux. trans cooler, front diff. drain plug. External trans.filter, trimmed snorkel. American wheels water temp guage, front fuel tank mod,Warn Manual hubs,Putman class 4 hitch 181k mi.
It is said if you sit by the river and watch the water flow by long enough, your enemies will pass by. This I believe to be true. It is also possible to watch your loved ones pass by as well.
Wife Candi 08/14/07 missing her always
Gone fishen ....I O/H'd a 24V71 last year. Me and my partner walked into the room and both looked at each other and said "this thing is like a time bomb" simotaneously haha. I must say it was one of the cleanest burning gensets under full load. Ran like a swiss watch.
__________________ 2001 F250 PSD - Oxford white, 146K, stock minus a welded in magnaflow
Just worked on one in a gen set. Heads are the same, you will need to ask a GOOD parts guy about the cams. You will need 12 Injectors, 1 governor housing and 1 slave governor housing. Racks, rack rods, look into the piston/liner thing also. Gear train should be the same BUT maybe the blower drive gear might be different. Also check on the correct turbo's. Sometimes turbo's are different due to the precise air/fuel mix. Fuel jumper lines and fuel stands. I will think on it tonight.
Also worked on my first 24V-71 gen set. What a nasty engine than is. There is a lot of BS on that engine. Sounded good.
Still like the old dirty dozen, 12V 149's are cool also. those 2 engine will make love to you on the dyno.
Now with the dumb questions, does any body know if 71 series injectors will fit in the holes?,I know they won't make a lot of power but at least I could start the engine to find out if it is worth my time
Thanks for the info so far
Jim
__________________
95 F250,XLT, 4WD, Auto Trans,bbshimmed,synthetic trans oil,4:10 gears ,Truck Trunk ,Nerf Bars ,crome Mud flaps, Aux. trans cooler, front diff. drain plug. External trans.filter, trimmed snorkel. American wheels water temp guage, front fuel tank mod,Warn Manual hubs,Putman class 4 hitch 181k mi.
It is said if you sit by the river and watch the water flow by long enough, your enemies will pass by. This I believe to be true. It is also possible to watch your loved ones pass by as well.
Wife Candi 08/14/07 missing her always
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12V92 RATrod
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