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  #1  
Old 01-03-2007, 08:37 PM
Scott98's Avatar
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How do you properly clean injectors once disassembled?

How do you clean the nozzles? I was going to use carb cleaner and a brass brush. In the FSM it mentions specially made brass brushes for cleaning, one of which I believe is used for the nozzle. Are these necessary? How would you clean out the nozzle without them? I want to try cleaning them first before I shell out the money for some new nozzles. Yes, I've tried diesel purge but I want to completely disassemble them and clean them thoroughly.

Thanks,

Scott

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Scott
1982 Mercedes 240D, 4 speed, 275,000
1988 Porsche 944 Turbo S (70,000)
1987 Porsche 911 Coupe 109,000 (sold)
1998 Mercedes E300 TurboDiesel 147,000 (sold)
1985 Mercedes 300D 227,000 (totaled by inattentive driver with no insurance!)
1997 Mercedes E300 Diesel 236,000 (sold)
1995 Ducati 900SS (sold)
1987 VW Jetta GLI 157,000 (sold)
1986 Camaro 125,000 (sold - P.O.S.)
1977 Corvette L82 125,000 (sold)
1965 Pontiac GTO 15,000 restored (sold)
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  #2  
Old 01-03-2007, 08:53 PM
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How can I say this.?....Don't.

Others will disagree of course and I don't mind that.
They are made in extreem clean room conditions, that you cannot duplicate in your shop/garage/kitchen.

If you take them apart you will need to re check the pop off pressures.
They do work together and get better at atomizing the fuel after a few hundred miles..applies to new ones especially.

If you insist on dismantling them, you'll need surgical gloves of some sort and a lint free place to work at. The residue in the pintle tip will be impossible to totally remove and you may score the micro fine surfaces trying to.

The parts are laped together and the taper has proved critical to engine noise.

It would be better to buy a set of nozzles and instal them without pullng the needle out of the nozzle when you assemble them.

Just my view you understand.


.
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  #3  
Old 01-03-2007, 08:56 PM
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Local Bosch shop will check them for free, if they need something I have heard they are inexpensive. What would you have to lose?
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1999 E300DT Obsydian Black Metallic, Heated Full Leather Parchment options, E2, K2, 136,000+, best 36.5 mpg - GP's 12-04 & 11-12 Zero Stuck
2010 Honda Odyssey - The BrideMobile - best 26.5
(2) 2005 Honday Accord- (1 -Corporate 1 - Personal) - 110,000 4-cyl 30mpg
2000 VW Golf GLS TDI, Upsolute Chip (sold to Brother, now 300+k on it) 48.5 mpg like clock work
1987 Honda CRX HF - Sold 87,000 always over 50 mpg Max 67 mpg
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  #4  
Old 01-03-2007, 08:58 PM
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This should be enough to guide you through the process:
http://dieselgiant.com/mercedesinjectornozzlereplace.htm
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  #5  
Old 01-03-2007, 09:02 PM
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Quote:
Originally Posted by raMBow View Post
Local Bosch shop will check them for free, if they need something I have heard they are inexpensive. What would you have to lose?
There is no Bosch shop anywhere near here. I even called a local Mercedes mechanic this morning. He said he just installs new ones in his customers' cars because he can't get them pop tested anywhere.

Scott
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Scott
1982 Mercedes 240D, 4 speed, 275,000
1988 Porsche 944 Turbo S (70,000)
1987 Porsche 911 Coupe 109,000 (sold)
1998 Mercedes E300 TurboDiesel 147,000 (sold)
1985 Mercedes 300D 227,000 (totaled by inattentive driver with no insurance!)
1997 Mercedes E300 Diesel 236,000 (sold)
1995 Ducati 900SS (sold)
1987 VW Jetta GLI 157,000 (sold)
1986 Camaro 125,000 (sold - P.O.S.)
1977 Corvette L82 125,000 (sold)
1965 Pontiac GTO 15,000 restored (sold)
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  #6  
Old 01-03-2007, 09:07 PM
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Quote:
Originally Posted by dkveuro View Post
If you take them apart you will need to re check the pop off pressures. They do work together and get better at atomizing the fuel after a few hundred miles..applies to new ones especially.
If I put them together exactly how I took them apart, why would anything change?
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Scott
1982 Mercedes 240D, 4 speed, 275,000
1988 Porsche 944 Turbo S (70,000)
1987 Porsche 911 Coupe 109,000 (sold)
1998 Mercedes E300 TurboDiesel 147,000 (sold)
1985 Mercedes 300D 227,000 (totaled by inattentive driver with no insurance!)
1997 Mercedes E300 Diesel 236,000 (sold)
1995 Ducati 900SS (sold)
1987 VW Jetta GLI 157,000 (sold)
1986 Camaro 125,000 (sold - P.O.S.)
1977 Corvette L82 125,000 (sold)
1965 Pontiac GTO 15,000 restored (sold)
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  #7  
Old 01-03-2007, 09:13 PM
dkveuro's Avatar
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Quote:
Originally Posted by Scott98 View Post
If I put them together exactly how I took them apart, why would anything change?
It might not...but ...how will you know?


New are 125 to 135bar n/a and 140 turbo.
Allowable range = 120bar.

What are your's now ?



.
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  #8  
Old 01-03-2007, 09:16 PM
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Thumbs up

Do you own another car? I can't tell from your sig.

Just pull the ones in question and ship them off to be rebuilt if you're that worried about them.
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  #9  
Old 01-03-2007, 09:23 PM
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Quote:
Originally Posted by dkveuro View Post
It might not...but ...how will you know?


New are 125 to 135bar n/a and 140 turbo.
Allowable range = 120bar.

What are your's now ?



.
Short of building my own pop tester which I'm not ready to do now I have no way of knowing. There is no Bosch shop in town.
__________________
Scott
1982 Mercedes 240D, 4 speed, 275,000
1988 Porsche 944 Turbo S (70,000)
1987 Porsche 911 Coupe 109,000 (sold)
1998 Mercedes E300 TurboDiesel 147,000 (sold)
1985 Mercedes 300D 227,000 (totaled by inattentive driver with no insurance!)
1997 Mercedes E300 Diesel 236,000 (sold)
1995 Ducati 900SS (sold)
1987 VW Jetta GLI 157,000 (sold)
1986 Camaro 125,000 (sold - P.O.S.)
1977 Corvette L82 125,000 (sold)
1965 Pontiac GTO 15,000 restored (sold)
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  #10  
Old 01-03-2007, 09:24 PM
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Quote:
Originally Posted by Hit Man X View Post
Do you own another car? I can't tell from your sig.

Just pull the ones in question and ship them off to be rebuilt if you're that worried about them.
I will install new ones myself if it comes to that but I'm trying to save the $120 it will cost for four new nozzles. If I can clean them myself for free first, I would like to try that and see if it works.
__________________
Scott
1982 Mercedes 240D, 4 speed, 275,000
1988 Porsche 944 Turbo S (70,000)
1987 Porsche 911 Coupe 109,000 (sold)
1998 Mercedes E300 TurboDiesel 147,000 (sold)
1985 Mercedes 300D 227,000 (totaled by inattentive driver with no insurance!)
1997 Mercedes E300 Diesel 236,000 (sold)
1995 Ducati 900SS (sold)
1987 VW Jetta GLI 157,000 (sold)
1986 Camaro 125,000 (sold - P.O.S.)
1977 Corvette L82 125,000 (sold)
1965 Pontiac GTO 15,000 restored (sold)
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  #11  
Old 01-03-2007, 09:30 PM
raMBow's Avatar
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Quote:
Originally Posted by Scott98 View Post
There is no Bosch shop anywhere near here. I even called a local Mercedes mechanic this morning. He said he just installs new ones in his customers' cars because he can't get them pop tested anywhere.

Scott
Sorry about that, I've got one an hour from me and they even said I could drop off at various places in my town as they pickup items several times a week.
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raMBow

1999 E300DT Obsydian Black Metallic, Heated Full Leather Parchment options, E2, K2, 136,000+, best 36.5 mpg - GP's 12-04 & 11-12 Zero Stuck
2010 Honda Odyssey - The BrideMobile - best 26.5
(2) 2005 Honday Accord- (1 -Corporate 1 - Personal) - 110,000 4-cyl 30mpg
2000 VW Golf GLS TDI, Upsolute Chip (sold to Brother, now 300+k on it) 48.5 mpg like clock work
1987 Honda CRX HF - Sold 87,000 always over 50 mpg Max 67 mpg
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  #12  
Old 01-03-2007, 09:30 PM
dkveuro's Avatar
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Quote:
Originally Posted by Scott98 View Post
Short of building my own pop tester which I'm not ready to do now I have no way of knowing. There is no Bosch shop in town.
Don't need a Bosch Service shop...just a shop with an injector pop tester...like me !



.
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  #13  
Old 01-04-2007, 02:31 AM
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Scott, a NAPA guy who is a former MBZ mechanic told me to take my injectors to Diesel Motive, its on Industrial her in Albuquerque. I haven't gotten around to taking them yet, so I can't comment on their service, but it might be worth a try.
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  #14  
Old 01-04-2007, 07:34 AM
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Thumbs up Bosch Shop in Albequerque

Quote:
Originally Posted by Scott98 View Post
There is no Bosch shop anywhere near here. I even called a local Mercedes mechanic this morning. He said he just installs new ones in his customers' cars because he can't get them pop tested anywhere.

Scott
Here is a link to your local Bosch FI Shop.... http://www.centralmotivepower.com/

And here is where I got that info....I have posted this link here at lease a half dozen times....here and in the DIY section... http://www.boschservice.com/ServiceLocations/DieselServiceCenter/Diesel+Service+Center.htm

SB
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Diesels:
'85 300D, "Max, Blue Benz", 155K, 27.0 MPG
'84 190D 2.2, "Eva, Brown Benz", 142K, 40.2 MPG
'77 240D (parts car)
'67 Eicher ES 202 Tractor "Otto" (2cyl, Air Cooled, 30HP)
Gassers:
'94 Ford F-150, "Henry", 170K (300 Six) 17.5 MPG
'85 190E 2.3, 148K....Parts Car
'58 Dodge W300M Powerwagon (Flat Fenders) Less than 10 MPG
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  #15  
Old 01-04-2007, 07:38 AM
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Join Date: Aug 2006
Location: West Virginia
Posts: 1,268
Thumbs up I agree.....

Quote:
Originally Posted by dkveuro View Post
How can I say this.?....Don't.

Others will disagree of course and I don't mind that.
They are made in extreem clean room conditions, that you cannot duplicate in your shop/garage/kitchen.

If you take them apart you will need to re check the pop off pressures.
They do work together and get better at atomizing the fuel after a few hundred miles..applies to new ones especially.

If you insist on dismantling them, you'll need surgical gloves of some sort and a lint free place to work at. The residue in the pintle tip will be impossible to totally remove and you may score the micro fine surfaces trying to.

The parts are laped together and the taper has proved critical to engine noise.

It would be better to buy a set of nozzles and instal them without pullng the needle out of the nozzle when you assemble them.

Just my view you understand.


.

Take the nozzles to the Bosch FI Shop......have them test them, and set them as necessary......Fuel Injection components are very precision instruments.....

__________________

Diesels:
'85 300D, "Max, Blue Benz", 155K, 27.0 MPG
'84 190D 2.2, "Eva, Brown Benz", 142K, 40.2 MPG
'77 240D (parts car)
'67 Eicher ES 202 Tractor "Otto" (2cyl, Air Cooled, 30HP)
Gassers:
'94 Ford F-150, "Henry", 170K (300 Six) 17.5 MPG
'85 190E 2.3, 148K....Parts Car
'58 Dodge W300M Powerwagon (Flat Fenders) Less than 10 MPG
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