Installed injectors rebuilt with Monark spray nozzles - Page 2 - PeachParts Mercedes-Benz Forum

wildhorsemfg · #16 04-08-2013, 03:13 PM

that is a good question ...
from **************.com

Quote:

12 month warranty provided on Monark Nozzles when all assembly precautions are followed (as detailed in included instructions)

eatont9999 · #17 04-08-2013, 03:25 PM

Quote:

Originally Posted by HuskyMan

I paid a reputable diesel injection firm to install the Monark nozzles on the original injector bodies and to bench test and balance them. They checked out fine so I installed them in the car. They nailed loudly from the date of install and continued until I removed them last evening.

From the originator comes the original design which gives us best performance. Mercedes Benz created and designed THEIR cars, their parts, their components. In addition, the last advertisement I saw, Mercedes Benz is in possession of over 80,000 patents laying claim to various automotive design(s) and processes.

Neither you, nor I, nor anyone else posting on this forum can claim that. So, do we trust the originator to provide us with top quality parts DESIGNED to work best with the cars they CREATED and DESIGNED or do we go to outside third parties for said parts? When you purchase a part from the Mercedes Dealership, notice it is packaged with the Mercedes Benz logo and trademark notoriously posted for all to see. They have built an international empire on one word and word only;

TRUST.

Notice when you purchase a part from Autozone it does NOT have the Mercedes Benz logo and trademark notoriously posted. Granted, the Autozone part may be only one third of the price of a similar part at the Mercedes dealership, BUT IS IT THE SAME AS? I think we know the answer. Yes, your Mercedes Benz automobile will dog along on third party parts but in my experience it is not a happy camper. The big German Shepherd wants its' big German Shepherd designed specifically for it parts and components. Either give the doggie what he wants or get out of the game.

There is a Ford dealership right down the street.

Bosch made the fuel system, not Mercedes. Mercedes may have specified certain requirements, but like all the parts in your car, someone else made them. Mercedes assembles cars from parts that it specifies to be made for them.

I don't think your poor experience with Monark nozzles can be blamed on the nozzles themselves at this point. Just because a fuel injection shop did the install, does not mean it was done properly. If you can rule out every other variable to prove the nozzles are no good, you can return them.

Diesel911 · #18 04-08-2013, 04:47 PM

Quote:

Originally Posted by HuskyMan

I paid a reputable diesel injection firm to install the Monark nozzles on the original injector bodies and to bench test and balance them. They checked out fine so I installed them in the car. They nailed loudly from the date of install and continued until I removed them last evening.

From the originator comes the original design which gives us best performance. Mercedes Benz created and designed THEIR cars, their parts, their components. In addition, the last advertisement I saw, Mercedes Benz is in possession of over 80,000 patents laying claim to various automotive design(s) and processes.

Neither you, nor I, nor anyone else posting on this forum can claim that. So, do we trust the originator to provide us with top quality parts DESIGNED to work best with the cars they CREATED and DESIGNED or do we go to outside third parties for said parts? When you purchase a part from the Mercedes Dealership, notice it is packaged with the Mercedes Benz logo and trademark notoriously posted for all to see. They have built an international empire on one word and word only;

TRUST.

Notice when you purchase a part from Autozone it does NOT have the Mercedes Benz logo and trademark notoriously posted. Granted, the Autozone part may be only one third of the price of a similar part at the Mercedes dealership, BUT IS IT THE SAME AS? I think we know the answer. Yes, your Mercedes Benz automobile will dog along on third party parts but in my experience it is not a happy camper. The big German Shepherd wants its' big German Shepherd designed specifically for it parts and components. Either give the doggie what he wants or get out of the game.

There is a Ford dealership right down the street.

I believe you and am not discounting your experience with the Monark Nozzles.
Nor can I exaplain why in your case you had the Nailing issue while others did not.
In My own case I worked 5 years in a Fuel Injection shop and I rebuilt the Injectors the same way I did when I worked at the Shop with the exception that I did not have a real Lapping Plate and ended up using a Plate of Glass.
I have a Real Diesel Nozzle/Pop Tester although it is made in China one I bought back in 1992 when I got the Volvo Diesel.

Do you know if the Nozzles in the Injectors you get from the Mercedes Dealer are the Made in India ones?
I believe you said in the other thread that the ones you used were used original Bosch Germen ones.
If that is the case they might not compare with the India Made Bosch Nozzles.

Diesel911 · #19 04-08-2013, 04:57 PM

Quote:

Originally Posted by HuskyMan

Warranty against what? Warranty to attach to the injector bodies? Or, warranty to operate like original OEM injectors? One of them has a large area of black soot across the entire face of the injector, the others are sooted up but not as bad.

If I take the above comment in red word for word:
The Heat Shield is supposed to cover and seal on part of the face of the Injector Nozzle.
If it had soot across the entire face of the of the Injector Nozzle was that would be an indication it was not sealing against the Heat Shield.

Diesel911 · #20 04-08-2013, 05:02 PM

Quote:

Originally Posted by Jimec3

I'm convinced!!

I guess my queston is: you wanna gimme those old crappy Monarch nozzles? I'll pay shipping...

Actually, that would be a good way to resolve the issue.

Jimec3 · #21 04-08-2013, 05:11 PM

Quote:

Originally Posted by Diesel911

Actually, that would be a good way to resolve the issue.

Well except I could clean and test his "junk" injectors and pssibly use them

eatont9999 · #22 04-08-2013, 05:12 PM

Quote:

Originally Posted by Diesel911

If I take the above comment in red word for word:
The Heat Shield is supposed to cover and seal on part of the face of the Injector Nozzle.
If it had soot across the entire face of the of the Injector Nozzle was that would be an indication it was not sealing against the Heat Shield.

Two possible causes for this would be re-use of the single-use heat shield or improper torque to the prechamber. Both could cause poor results.

There should be a small amount of soot build up around the needle face where the nozzle is exposed to the combustion chamber, but not around the entire face of the injector. Such soot buildup would indicate an improper seal to the prechamber.

eatont9999 · #23 04-08-2013, 08:26 PM

Anyone here is welcome to send me injectors for free pop testing if they pay for shipping both ways. I do charge a reasonable rate if the customer wants work done to the injectors.

Diesel911 · #24 04-08-2013, 10:35 PM

Quote:

Originally Posted by eatont9999

Two possible causes for this would be re-use of the single-use heat shield or improper torque to the prechamber. Both could cause poor results.

There should be a small amount of soot build up around the needle face where the nozzle is exposed to the combustion chamber, but not around the entire face of the injector. Such soot buildup would indicate an improper seal to the prechamber.

Yes, that is entirely logical.