I cannot say I've seen the insides of every DB2 injection pump made after 1985.
I CAN say that all those pumps were manufactured by Stanadyne and Stanadyne sent out numerous service bulletins in 1985 annoucing that the plastic ring was no longer being used in any applications for vehicles made for highway use. That includes the GM 6.2s, Ford-IH 6.9s/7.3s and all the militatry 6.2s. Stanadyne also made it required repair policy for any certififed repair shop to retrofit a solid or EID weight retainer into ALL DB2 pumps used on cars and trucks made prior to 1985. Any that got upgraded got a special ID tag attached. Back in 1985, this was a big deal since so many pumps had left trucks "dead on the road." I was working in a pump shop at that time and can say for sure - I have never seen a pump newer then 1985 on a highway vehicle with the plastic.
Besides the Stanadyne bulletins, Ford, GM and the US Army sent out their own versions.
If you claim you have seen different? Please post the pump ID number. I am very interested. For the moment I do not believe it. It IS possible somebody stuck an older pump on a newer engine. The ID plate can tell all.
Bulletins were even sent out to fix the 70s 350 Olds diesels after 1985.
SERVICE BULLETIN NUMBER: 84-237 Bulletin Sequence Number: 012 Date of Bulletin: Feb 1985 NHTSA Item Number: 76729 Make: Chevrolet Model: Monte Carlo Year: 1982 Component: Fuel: Fuel Injection: Unknown Type: Accumulator Summary: DIESEL INJECTION PUMP GOVERNOR WEIGHT RETAINER - A NEW GOVERNOR WEIGHT RETAINER ASSY. REFERRED TO AS AN "ELASTOMER INSERT DRIVE" (EID) USED ON ALL 1985 MODEL INJECTION PUMPS IS INTERCHANGEABLE WITH THE RINGS USED ON 1978-84 MODEL DIESEL INJECTION PUMPS. REPAIR KITS AVAILABLE FROM EITHER WDDGM OR A ROOSA MASTER DEALER. 1980-84 CHEVROLET IMPALA AND CAPRICE, 1982-83 MALIBU, 1982-84 MONTE CARLO, AND 1982-84 CELEBRITY WITH 4.3L V6 OR 5.7L V8 DIESEL ENGINES.
All the pumps have ID tags that tell year made e.g. . .
DB2829-4310 14077186 1984 LD G Van - CAL. (Man. Trans.) G — — DB2829-4355 23500014 1984 HMMWV (Military) C/K DB2829-4471 Note 5 DB2829-4366 23500077 1984 LD G Van - CAL. (Auto. Trans.) G DB2829-4439 Note 5 DB2829-4386 23500256 1984-85 CUCV (Military), HD C/K, D Truck - 1.2 cSt C/K DB2829-4521 Note 2 DB2829-4410 23500251 1985 HD C/K & P Truck C/K DB2829-4544 Note 2 DB2829-4411 23500252 1985 HD G Van G DB2829-4509 Note 2 DB2829-4412 23500253 1985 HD C/K Truck - ALT. C/K DB2829-4510 Note 2 DB2829-4413 23500254 1985 HD G Van - ALT. G DB2829-4511 Note 2 DB2829-4425 14077168 1985 LD C/K Truck C/K DB2829-4502 Note 2 except (d) DB2829-4426 14077171 1985 LD C/K Truck - ALT. C/K DB2829-4506 Note 2 except (d) DB2829-4427 14077169 1985 LD G Van G DB2829-4503 Note 2 except (d) DB2829-4428 14077170 1985 LD G Van - ALT. G DB2829-4507 Note 2 except (d) DB2829-4437 23500273 1985 LD C/K Truck - CAL. C/K — —
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Today's Featured Article - Grain Threshing in the Early 40's - by Jerry D. Coleman. How many of you can sit there and say that you have plowed with a mule? Well I would say not many, but maybe a few. This story is about the day my Grandfather Brown (true name) decided along with my parents to purchase a new Ford tractor. It wasn't really new except to us. The year was about 1967 and my father found a good used Ford 601 tractor to use on the farm instead of "Bob", our old mule. Now my grandfather had had this mule since the mid 40's and he was getting some age on him. S
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