W123 Delivery valve crush washer replacement

[@trythistv]

The crush washers are part number 0049974540, or Bosch 1-410-105-021 Here are a few possible sources: www.pelicanparts.com/More_Info/0049974540.htm?pn=004-997-45-40-M14 www.fcpeuro.com/products/mercedes-delivery-valve-seal-bosch-0049974540 If your delivery valves are stuck like mine were, here is a likely source for new valves while they last: Part number 0000745184 or Bosch 1418512008 Delivery valve: ebay.us/hE5TXk Here is the special socket I used for the injector lines: www.idparts.com/17mm-special-egtinjector-line-socket-t40055-idp1066-p-6237.html

[@fk12368]

Thank you for this wonderful video, greetings from Heidelberg Germany

[@trythistv]

Heidelberg looks like a beautiful place! One day I'd love to visit Stuttgart, see where my car came from!

[@QsTechService1]

Pretty cool I’ll have to take a look at mine are you able to buy those components brand new ? You said you picked up a use set

[@trythistv]

I've not found brand new DVs anywhere, A bosch pump shop might be able to source them, but I wouldn't bet on it. at least the crush washers are still available.

[@QsTechService1]

@@trythistv OK good to know thanks

[@vintage76vipergreenBeetle]

Nice information.

[@trythistv]

Thanks! My car definitely runs smoother with the "new" delivery valves.

[@estefanofanhani]

congratulations for the work. I haven't really seen a delivery valve video on the web. I know that the injectors work with 140 bar. what would be the ideal pressure that delivers these injection pump valves? obs. the platform is not warning about your videos. hug from Brazil

[@trythistv]

I hadn't seen much of anything about them either, the main purpose of these is to keep fuel flowing in the correct direction and cut the fuel delivery at the right time. I'm not sure there is any kind of rating as far as pressures, my understanding of delivery valves is quite limited but modifying the shoulder (with high precision, very expensive tooling) would result in more fuel or different timing on the fuel delivery event, but the pressure would still ultimately depend on the injector shimming. Hopefully someone more knowledgeable can chime in if anyone else has insight into delivery valves function

[@AlexOnParkwood]

Do you have any part numbers for the original delivery valves? I can attempt to source these from Germany and get a link for you.

[@trythistv]

I do! The Bosch part number should be 1 418 512 008 The Mercedes part number should be 000 074 51 84 I've found a few sites that claim to have them but they are sites I've never heard of that I hesitate to recommend just in case they are shady or something.

[@AlexOnParkwood]

Let’s see what we can come up with!

[@AlexOnParkwood]

I ordered ten new-in-the-box; never used. I can’t post the pictures here but I can email you pictures and the link for your review.

[@trythistv]

@@AlexOnParkwood Absolutely, send them over to Tom at trythistv dot com

[@chandima60]

Please tell me w123 1984 whats the axle zise rear 13 or 19

[@trythistv]

Are you asking about the axle shafts themselves? I'm sorry I don't quite understand.

[@jonathan-ho9tf]

Where can I find some of these valves? Been looking everywhere

[@trythistv]

Finding them new is near impossible from everywhere I've searched. Used ones from a junkyard motor like I did or perhaps a bosch pump shop might have better connections.

[@estefanofanhani]

@@trythistv here in brazil there are mb roads with engines different from the usa mb walk from the 70s to 2000s here is the most common engine om 321 from the 60s om 352 om 366. om 355/5 and om 355/6 all with bosch pump the elements are used in this pump of ours here an om 616 reform the complete pump is the only engine similar to om617 that came to brazil