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Topic: W116 injector seals too small for injector nozzle holder Reply to Thread
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  Topic Review (Newest First)
05-26-2019 02:13 AM
plinker17722
head

Is this like yours seals are flush in their holders .
05-26-2019 01:55 AM
plinker17722 May be your right but what i checked up on dont add up . Most seals are flush with the top of the plastic holders .Can you please post up a picture of the final assembly?.
05-26-2019 12:29 AM
CPHbenz Okay, I finished installing the new injectors, injector holders and injector seals. As mentioned earlier in this post, the seals don't fit tight in to the injector holders. However, it seems that the hold down brackets (each hold down 2 injectors) push the seals tightly in to the holders. This seals everything and no false air gets in to the system. I just took the car for a drive and this operation was an improvement.
05-20-2019 03:22 AM
plinker17722 Go to Eurocarpart.com the number i find for your eengine id 1160700077 But you can put your car in the box to find the right parts just for information. Do you have a picture of just the seal on its own ?
05-20-2019 03:07 AM
plinker17722 These are the same as my m103 the plastic part is a fixed part looks like its moulded in . Check your seals out on EBAY do some checking yourself . You have the wrong ones i am sure. I looked on ebay and thats what fit your injectors .Dont you have the old ones you removed .
05-19-2019 09:09 AM
CPHbenz The seals don't really change size after installing the injectors in to them. Still too small for the injector holder. I don't think the plastic piece you mention goes on the seal. It is also not on the original seals now. I have seen this piece on my W126, but not on the W116. Are you sure it goes on here? Still, the seal itself seems too small for the holder.
05-18-2019 02:10 AM
plinker17722
Seals

Looks like the holders are the right ones . But the seals should have a hard plastic type cap built in to the top see pc .
05-18-2019 01:56 AM
plinker17722 Do they change after you fit the injector in to the seal first . Then put them both in to the holder ..holder fits in to the engine first .
05-17-2019 10:00 PM
CPHbenz
W116 injector seals too small for injector nozzle holder

I am installing new injector seals and nozzle holders on my 1977 280 SE. All genuine Mercedes parts. I noticed that the seals do not fit tightly in to the holders. I have attached a picture of this. The old original seals seem to fit tightly in to the old holders. I worry that this can cause false air to get in to the system which ironically is what this exercise is supposed to prevent.

Has anyone changed seals/holders and noticed this? I think the seals/holders are the same on all gas engines.

Thanks

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