I went to 2 hardware and 2 auto supply stores today, and none of them had the correct size. I asked for 10x14x1.0. Does that sound right? Any suggestions as to where I might find them? I know Phil can get them, but I'd like to avoid the shipping charge on such a small item, and I don't want to pay 4 bucks each from the dealer.

Thanks

Bosch Diesel Service Station

Performance Turbochargers, LLC
8482 Cherry Avenue
Fontana, CA 92335-3028
Phone: (909) 429-7200
Fax: (909) 429-7204
Email: garyhetrick@dieselusa.com
Web Addr: http://www.dieselusa.com
Factory Trained For : DM, CR, VR, J/S

If they can't help you, ask for a referral.

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'84 300SD sold
124.128

Thanks!

I saw a link to "Diesel Radio" on the above site. Looks like I'll have something to listen to at work tomorrow.

I found my 1985 300TD still leaked a little around the delivery valve after I replaced the crush washer. I had to torque down on the valve a little harder to make it stop. You may want to look into the proper torque spec on it.

-Jeb
Austin, TX

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1985 300TD "Ted", 220,000 miles

The Alloy of the Crush Washers for the Delivery Valves is I believe not as soft as a regular Copper Crush Washer meaning that I would buy the ones that are made for the job.
Does anyone have experience using Generic Crush Washers for the Delivery Valves?

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84 300D, 82 Volvo 244Gl Diesel

I wouldn't use anything but the "official MB" ones, it'll be interesting if someone comes up with a generic one and has run them for a while.

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1985 Euro 240D 5 spd 140K
1979 240D 5 spd, 40K on engine rebuild
1994 Dodge/Cummins, 5 spd, 121K
1964 Allice Chalmers D15 tractor
2014 Kubota L3800 tractor
1964 VW bug

"Lifes too short to drive a boring car"

I went to the Bosch service center, and told them I needed the washers. The guy wanted the pump's part number. I told him the the size is 10x14x1, and he said "I need the pump number or an example."

I was puzzled, to say the least, and asked if there were different alloys or something.

He said, "No. There are just too many sizes."

Now, where I come from, a size is a size, and I couldn't figure out what the difficulty was. He went to the back, and brought out a tray of crush washers, took one out of one bag, and another out of a different bag, and asked me which one I needed. They looked identical to the naked eye, but were slightly different sizes. I then realized what he was talking about.

I went to the parking lot and tried to read the pump number, but there was a fuel line in the way, the light wasn't too good, and my eyes aren't the best; so I told the guy I'll get the number and come back. It's like 2 miles from work, so that's pretty handy.

Bottom line - if you go to Bosch, make sure you have your pump number!

D-valve seal rings on 123 series MW pumps are made from a 0.50mm precision annealed copper shim and may only be used once. The correct size is 14Ø x 10 x 0.50mm only available from a Bosch agency. Only by using the correct part will the lapped faces between the D-valve and pipe connection be kept parralel to seal at 40-50nm in a single step. Overtightening can distort the pump body and cause rack to stick. NEVER re-use or use a substitute.

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Beagle

Now there's a post that has the sound of au-thor-i-tay!

Thanks for the good info - my car would be a TOTAL waste by now if it wasn't for you guys!

.........always a pleasure to see you again.........

Does replacement of this copper washer apply to some of the various timing methods that require D-valve removal?

edit:FSM says no.

what is the original reason for replacement (simply curious)?

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Still trying to fix the hot idle shake.

When I worked in a Fuel Injection shop I would sometimes find those washers eroded away by the pressure and have found 2 Fuel Injection Pumps that leaked because the Crush Washer had eroded through.

My answer concerning the Alloy of the Crush Washer goes to the fact that the Bosch made IPs that go on the old 8 cylinder International Engines had Crush Washers that were very pale; somewhere close to Copper colored but with a tint of Brass color to them and they were harder than plain Copper. The leads me to suspect that there is a chance that the Delivery Valve Crush washers in the Mercedes pumps are made for that specific purpose.
At the shop it was never an issue as I used what came in the gasket kit when we rebuilt the IPs.

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84 300D, 82 Volvo 244Gl Diesel

Jeb,

did you also replace the rubber o-ring on the delivery valve itself? 2 out of the 6 of mine had square sided o-rings which caused my leaking.

bob

The IPs are different on some Models. In the IP on my 84 300D there are no O-rings that seal in the Delivery Valve area and the Crush Washer is located in a different positon.

Look at the first 2 diagrams at the belolw site. In the 1st diagram upper left corner you see item #47; that is the Crush Washer and where it is located on my 84 300D and notice no O-ring.

Diagram 2 the upper left corner you see item #44 the Crush Washer (in adifferent position then on mine) and the O-ring item #35.

http://www.detali.ru/cat/oem_mb2.asp?TP=1&F=123130&M=617%2E912&GA=722%2E118405&GM=716%2E005++++++++++++++717%2E400&CT=M&cat=143&SID=07&SGR=045&SGN=01

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84 300D, 82 Volvo 244Gl Diesel