Swap from 78' Non-turbo to 84' Turbo? My neighbor is an old diesel mechanic and kindly rebuilt the 78's injectors. Can I do the old switcharoo?

Unfortunately, the turbo injectors are stronger than the non-turbo injectors due to the higher pressures the turbo generates in the cylinders, and so non-turbo injectors won't work in a turbo.

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"Senior Luna, your sense of humor is still loco... but we love it, anyway." -rickymay ____ "Your sense of humor is still loco... " -MBeige ____ "Señor Luna, your sense of humor is quite järjetön" -Delibes

1982 300SD -- 211k, Texas car, tranny issues ____ 1979 240D 4-speed 234k -- turbo and tuned IP, third world taxi hot rod

2 Samuel 12:13: "David said to Nathan, “I have sinned against the Lord.” And Nathan said to David, “The Lord also has put away your sin; you shall not die."

They have different cracking pressures, but as far as I know the bodies are the same and the nozzles the same. They won't run right because of the different springs and shims in them.

The body of the NA injector isn't "weaker"

Ah! Dang. The 78' runs great, but the rest of the car is falling apart. Well this is a good excuse for new nozzles. What do you guys recommend? Bosio or Monark?

The opening/Pop Pressure is higher on the Turbo Diesels.

Also the Early Bosch Nozzles with the drilled Passages in the Pintle ends had small diameter Holes in them and after a certain date that was changed. So it would be better not to have small hole and large hole Nozzles mixed in the same set.

The reason to use the Bosio or Monark Nozzles can be cost in the case of the Monark Nozzles and the fact that the New Bosch Nozzles for the 617/616 Engines are made in India and as far as I know still have issues of longevity and sometimes right out of the Box.

There is all kinds of Injector and Injector Nozzle info below; Hunter spent considerable time organizing them in the Threads in categories so they would be easier to find:
DIY Repair Links
http://www.peachparts.com/shopforum/forumdisplay.php?f=82
http://www.peachparts.com/Wikka/DoItYourSelf

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84 300D, 82 Volvo 244Gl Diesel

Sadly I had to use Bosch injectors in my car, like 2 years ago because monark nozzles were no longer being made and no one had any. So far the car runs and gets good mpg....but the idle seems to keep getting rougher...I imagine its because of the injectors but my blow by is so bad that I refuse to sink money into more new injectors....I need to check timing chain stretch and readjust the timing....that may help... But in my case I haven't had any real bad issues with the nozzles..

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Hollar at Greazzer. He'll hook you up. Great work good price.

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Current fleet
2006 E320 CDI
1992 300D - 5speed manual swapped

former members
1984 300D "Blues Mobile"

1978 300CD "El Toro"

Did you get another Mercedes? Last I heard you were working on getting a good head for the 78...gave up on it?

Oh and what I have read, its not a good idea to just switch nozzles...the injectors really need to be sent off for balancing, pressure testing and I believe it was lapping....with out the proper equipment its hard to know if the springs are good and if you need different shims..

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I got it all put back together, it starts quickly, has virtually zero blow-by and runs very smooth. I covered the basics to make it a running, safe vehicle, but its just not worth it. It just came down to I could throw money at that car for 10 years and it would still be "meh". Do it regret it? Not a second. I learned a mind blowing amount rebuilding that car. I've never done anything at all like this at all so it was really worth its weight in gold. Plus now I know how to work on the new one without royally screwing up haha.

I found an almost mint 84' for $3,000 and jumped on it. 1984 300D - Imgur

I'd say you stole that car! Very nice well kept car. I have the exact car (well not exactly)- same year, color inside and out. That is where the similarities end. Mine is now a parts car, but I can now see what it looked like when it was new!

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All Diesel Fleet
1985 R107 300SLD TURBODIESEL
2005 E320 CDI (daily)

LOTS of parts for sale!


EGR block kit
http://www.peachparts.com/shopforum/diesel-discussion/355250-sale-egr-delete-block-off-plate-kit.html

1985 CA emissions 617 owners- You Need This!
Sanden style A/C Compressor Mounting Kit for your 616/ 617 For Sale + Install Inst.

Sanden Instalation Guide (post 11):
http://www.peachparts.com/shopforum/diesel-discussion/367883-sanden-retrofit-installation-guide.html

Your 84 is beautiful, you scored on that one. I would have the 78 and 84 in the barn in bad weather and drive the Honda, those are a dime a dozen.

Charlie

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there were three HP ratings on the OM616...

1) Not much power
2) Even less power
3) Not nearly enough power!! 240D w/auto

Anyone that thinks a 240D is slow drives too fast.

80 240D Naturally Exasperated, 4-Spd 388k DD 150mph spedo 3:58 Diff

We are advised to NOT judge ALL Muslims by the actions of a few lunatics, but we are encouraged to judge ALL gun owners by the actions of a few lunatics. Funny how that works

can a om617 injector be modded to work with a turbo engine?

That's a bummer, but I am glad you learned when to throw in the towel. I love the new one, the exterior paint is gorgeous....never been a fan of palomino interior...you should looking in to getting some vinyl die to fix the pink color....are you going to keep the 78 or part it out? That 84 is very nice, specially the not cracked dash and turbo! As long as you keep up the maintenance and implement everything you have learned....this one should last your lifetime...

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Any info on this shimming process from 115 bar? Is there a standard or given amt that gets you 135 bar?

Or involves trial & error then perhaps testing and or measuring?

As a rule of thumb each +0.10mm shim thickness will add about +100psi to the pop pressure. As you go past 2000psi, each 0.05mm adds 100psi. But it's trial and error. You need a pop tester to do this properly. It's also normal for injector to lose about 100 PSI pop pressure after about 20,000 miles.

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CENSORED due to not family friendly words