Calling all injector DIYers... - PeachParts Mercedes-Benz Forum

C Sean Watts · #1 09-13-2007, 05:06 PM

I have an '87 300D. Many of us are well over 100,000 miles on even non daily drivers. As a DIYer, I've had a bit of trouble finding internal injector parts still made in Germany (nozzle, pressure shim, spring, etc) Thanks to an in-law who happens to be a mechanic and garage owner in Germany, (no, really

) I have found a good source of high quality parts,via his suppliers.

The only catch is buying in bulk. Parts in 6 ea. at a time is not cost effective, BUT by the gross is. Truth be known, if you can pull out your injectors for a test, you can replace nozzles, shims, etc. and KNOW they are good quality parts.

I POSE THE QUESTION TO THE GROUP -- How many members would be interested in injector parts for a very reasonable price?

I know this group is MB specific... VW, Deutz, Opel and some other
European imports, including CDI, could also be supported.

Please PM or email c_sean_watts@yahoo.com

pawoSD · #2 09-13-2007, 05:11 PM

What is a reasonable price? The most commonly needed (usually the only needed part) is a new nozzle and maybe a different shim....

Bosio (italy) nozzles seem to work quite well, and are of very high quality. Two of our three cars run them, and they run and perform exceptionally. They can be had for $39 each.

jkoebel · #3 09-13-2007, 06:17 PM

Is it hard to replace injectors? There's oil around the base of all of mine, so I imagine something or other is probably in need of replacement after 220k.

The answer to this question partially determineshow interested I am in a group buy.

pawoSD · #4 09-13-2007, 06:20 PM

Quote:

Originally Posted by jkoebel

Is it hard to replace injectors? There's oil around the base of all of mine, so I imagine something or other is probably in need of replacement after 220k.

The answer to this question partially determineshow interested I am in a group buy.

Thats probably not oil but dirty diesel fuel leaking from the injector.

rick surgent · #5 09-13-2007, 07:13 PM

I would probably be interested in about 18 nozzles , springs and assorted shims. What other parts can he get?

dawsonj3 · #6 09-13-2007, 09:06 PM

What type (and what country of manufacture) of injector nozzles does your relative have access to?

C Sean Watts · #7 09-14-2007, 12:25 AM

I must have played email tag three times across six time zones today alone.
Skip to middle for short, quick answer.
This is from a parts distribution house that supplies to shops in Europe SO....
*NB not an advertisement or guarantee* US dollar to euro rate (dollar now lower than euro) shipping and/or customs (hopefully not) could cause all this to change...I think you get the idea.

Shims Made in Germany. Six different diameters depending on application, HEY there could be some Unimog or MAN drivers out there! (one or two apply to us in this forum) Thicknesses vary by 0.05mm increments and come in about 20 or so different thicknesses. NOT recommended that you lap to thin. You could create asymmetrical loads inside the injector. Shim up or down to bring the set within specified range. (Props to master mechanic Winfried "Vinnie" Dietz

)
Price range $3.00 to $3.60

Springs Made in Germany. Sizes vary by application.
price range $3.50 - $4.30

Spacer $5.00 - $7.00

Thrust pin Most made in Germany. Five diameters (similar to shims) vary according to application. Price range $1.60 to $2.65

Nozzles Most made in Germany or of EU origin - BTW "Made in EU" is now legal labeling.(Not limited to) France, Belgium, UK, Italy. Manufacturers include Bosch, Delphi, Kolbenschmidt and Bosio.
Types include DLLA, DSLA and DN(0)SD (last one applies to most of us) There are about 50 DN types alone - chances are they'll have what we need. If you specify one brand and/or country of origin, you could be waiting a while.
Price range $19.50 to $35.00. For a CDI injector expect to pay over $300

Right now there is a special on for DN0SD274. VW part no. 068130211d / Bosch part no. 0434250138 These nozzles are $ 19.00 each. I DON'T KNOW how long this is valid. As listed, "Nozzle is not stamped."

If we have a part number we know what they'll fit?
If I translated correctly "Also featured Bosch glow plugs 21mm 12V fits all 1.5 to 2.4 VW & Audi" $15.00

Short, quick answer - they have everything you need to assemble a one piece at a time 'a la carte' injector.

BEST WAY TO ORDER in order to speed the whole process...Not by year, make and model please. Be part number/dimension specific. If you only know one ID number, make sure it's the "OM XXX.XXX" number - FULL six digits.

Nozzle
Find the number DN(0) XXXXX The same engine line could have changed in the middle of a production run.

Shim
Please specify the desired diameter and thickness. The six diameters are;
6.80mm (from 1.00mm to 2.00mm thick),
7.25mm (from 1.00mm to 2.00 thick),
8.50mm (from 0.80mm to 2.00mm thick),
9.40mm (from 0.80 to 2.00mm thick),
9.80mm (from 0.05mm to 2.00mm thick)
11.50mm (from 0.05mm to 2.00mm thick)

Remember thicknesses change 0.05mm at a time - that changes pressure by ~3 BAR.

Springs Specify exact height and diameter ALSO what type of nozzle it is matched to.

Thrust pin Specify exact diameter
Sizes are; 6mm, 7.5mm, 8mm, 11mm and 15mm

UPDATE EDIT: SHIPPING
Supply houses are INSISTING on insured shipping for all overseas (incoming to the USA) orders.
As of September '07 cost is averaging 15 Euros (about $20.00) for 5 pounds of weight. I will try by all means to combine as many import shipments as possible and NOT mark up at all. I refuse to "Flea-Bay" the shipping!

My regular email is c_sean_watts@yahoo.com

vwnate1 · #8 09-14-2007, 09:01 AM

But even though I've had my nozzles apart for cleaning & adjusting , I never saw the P/N .

I need 9 nozzles for a naturally aspirated W-123 series.....

BTW : lapping the shims is O.K. *IF* you make up a simple jig to ensure equal contact whilst lapping them....

Setting up your injectors to within 5 PSI popoff pressure really smooths out your engine and makes for even more tractible power and better fuel economy at the same time .

C Sean Watts · #9 09-14-2007, 09:42 AM

Quote:

Originally Posted by vwnate1

But even though I've had my nozzles apart for cleaning & adjusting , I never saw the P/N .

I need 9 nozzles for a naturally aspirated W-123 series.....

BTW : lapping the shims is O.K. *IF* you make up a simple jig to ensure equal contact whilst lapping them....

Setting up your injectors to within 5 PSI popoff pressure really smooths out your engine and makes for even more tractible power and better fuel economy at the same time .

Lapping is not strictly forbidden, just not recommended. Just use "NASA clean room" procedures, or so I'm told...

vwnate1 · #10 09-14-2007, 11:14 AM

Yes ! clean as can be ! not so much as dust in there .

Re-calibrating the injectors in my old '78 300CD made it's _totally_ worn out engine run quite well indeed . so well in fact that a gentleman offered me twice what I'd paid fot it , negating the need for me to swap another engine into it , now I have a different , nice low milage 300CD I plan to keep .