Folks,

One of the maintenance items that I have been getting ready to do is to remove, and label all 5 of my injectors.....will take them to the Bosch FI shop next week.....I also had to pass by the MB dealership today, so I decided to purchase an OEM set of Heat Shields (MB calls them seal ring)......now I was expecting that they might be copper, a lot of injectors use coppers.....I had on hand a set of 5 from a Diesel Owners kit from another web source, and they kinda looked like aluminum.....anyhow, the MB ones, PN A 601 017 00 60 are shaped a bit differently, and are a bit larger.....the internal hole is smaller in diameter than the other ones.....also the alloys, whatever they may be, are of different shades/colors.....

I noted to the MB parts guy that the part # did not begin with 617.....he swung the computer around and showed me that these are the proper ones, and have superseded the old part # (began with 617. ).....so now I know that there are at least 2 different designs of heat shield.......

I had initially asked the Bosch folks..."are they supposed to be copper or aluminum".....they said, just bring a sample, and they would match it.....

I won't know what's in the car until I remove the injectors next week.......intend to remove them in the AM and reinstall in PM......intend to use the OEM heat shields....unless I hear something profound here....

Just looking for any input in this area......heat shields......

At present, I am not having any major injector problems other than a mild nailing when cold and idling......nothing obvious anyway.....will be allowed to watch the Bosch Tech pop and set my injectors.....will record initial popping pressures and note spray pattern.....will also note all finished popping pressures and the parts changed/replaced if any...and the cost to me....in a new post when I finish that job.....

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

I have a couple of sets of these lying about. I understand there are to be used only once, and must be installed "right side up" or they will leak. Look aluminum to me. Have not noticed any difference in shields. I've got service manual on CD, and am happy to help, PM me. Or check with Brian Carlton.

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83 SD

84 CD

Here is a photo of the heat shields the top ones are the OEM ones from MB dealership......the bottom ones are the shields in question......



I have the manuals on CD.....and a buncha books on various aspects of diesel engine operation and maintenance.......

I tend to have differences of opinion with Mr. Carleton........so I will just ask my questions out here in the open......

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

Use the ones up top. They will better shield the injector from heat.

What the guys told you is not true,the heat shields for w124/201 and w123/115/110 diesels are different-according to MB , Elring or Bosch ,or Beru or whatever brand on the planet produce them...
601 017 00 60 =BERU 2901520012=BOSCH 2 430 501 011=ELRING 693.758
..with the following dimensions:Innendurchmesser 7,6 mm, Aussendurchmesser 20,1 mm, Dicke/Stärke 2,62 mm

the proper ones:
617 017 03 60 =BOSCH 2 430 501 009=ELRING 002.330,thickness 2,3mm
http://www.detali.ru/cat/oem_mb2.asp?TP=1&F=123193&M=617%2E952&GA=722%2E120315&CT=M&cat=143&SID=07&SGR=105&SGN=03
Good luck,get the right ones.However,even they differ,I had ordered 4 thru the MB dealer(617 017...)-silver,ferrous metal and slightly different in profile than the ones I bought 2 months later from the Bosch dealer(black,ferrous again).The MB ones were Elring,I suppose...

the top seal rings are the OEM part # A 601 017 00 60 (which was superseded to, from a 617 xxx xx xx)........

now I want to know where "vox incognita" gets his info....went to the Russian site as linked to in his post.....same exact drawing that the MB Parts guy used......

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

The CORRECT current part number is 617 017 03 60, they are a replacement for the supersceded 617 017 02 60. The current part is available and lists for $2.80 each.

I don't know what EPC your dealer was looking at but the parts guys are constantly making mistakes at my dealership which is why I bought and installed the EPC on my computer.

Your dealer may have been looking at the same drawing but input the wrong model engine and therefore the EPC will show the wrong part number. Many models use the same drawings but link to different part numbers depending on the model of the car in question.

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Marty D.

2013 C300 4Matic
1984 BMW 733i
2013 Lincoln MKz

I just phoned the MB parts department at Astorg MB in Parkersburg, WV.....told him about this little part number discrepancy ......he looked it up again....and according to the internal/online MB parts database.....617 017 03 60......has been superseded to 601 017 00 60......so I think I will use those.....but I will wait until I actually remove the injectors and see what is underneath of them.....and also will see what the Bosch FI guys say as well......there isn't all that much a difference, however I have to think that any difference in thickness will make some sort of difference as the injector spritzes across space to hit the little ball within the pre-combustion chamber......

.......I began this thread in an attempt to determine why there is some difference in the first place......

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

They do this sometimes too, so it is possible that these parts will indeed work fine as replacements. As the 617 gets older they will undoubtedly try to eliminate as many special parts as possible. They probably tested the later version and found it worked so eliminated the 617 version. My EPC still shows the 617 number but it is about a year old so I can't say it is current, but that part still comes up as current on a dealer parts list I have access to so I assumed it was still the right number.

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Marty D.

2013 C300 4Matic
1984 BMW 733i
2013 Lincoln MKz

They are made of STEEL. I remove them with a magnetic pickup.

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'83 240D with 617.952 and 2.88
'01 VW Beetle TDI
'05 Jeep Liberty CRD
'89 Toyota 4x4, needs 2L-T
'78 280Z with L28ET - 12.86@110
Oil Burner Kartel #35

http://i16.photobucket.com/albums/b1...oD/bioclip.jpg

The original shields had a 10mm hole, the replacements are something like 6mm or 7mm. I'm pretty sure that the hole size isn't the issue since obviously, the engine will run fine with either the big or little hole. The important thing is that a new washer is used whenever you pull the injectors.

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Never a dull moment at Berry Hill Farm.

the top ones in your pic look like the ones i pulled out of a 83 3ood at the junkyard recntly. smaller center hole.

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1984 123.193 372,xxx miles, room for Seven.

1999 Dodge Durango Cummins 4BTAA 47RE 5k lb 4x4 getting 25+mpgs, room for Seven.