Author Topic: W116 4.5 and 6.9 fuel assembly  (Read 96 times)

Jan S

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  • Location: Norway
W116 4.5 and 6.9 fuel assembly
« on: 13 October 2020, 01:04 PM »
I have a 1975 W116 450 SE U.S. with a retrofitted 6.9 from the U.S.

 The picture/illustration shows an assembly similar to mine currently in the car. I'm not sure the previous owners put in a K-jetronic assembly (originally D-jetronic in the car). Fuel filter is for 6.9, but no identification on pump and accumulator. The damper cage is old and apparently for a 450 SL (116 470 0516, "Bischoff")?

I'm replacing everything, hence and I need to put in the correct K-jetronic parts.

-- has the 6.9 a similar system with similar components, although not the same OEM numbers? I assume so ... if yes I can find the correct parts
-- Is the damper cage "empty" inside, i.e. a hollow can, can I reuse the old one since it's hard to find new ones (it's not leeking)

Would appreciate some advice. I'm emptying the tank on Sunday, the rest will follow ....
1975-mod W116 450 SE with 6.9 engine

hamidagha

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  • Location: Birmingham UK
Re: W116 4.5 and 6.9 fuel assembly
« Reply #1 on: 13 October 2020, 01:49 PM »
I just did mine! I ordered a new damper cage from the MB dealer and he sold me a replacement which is just a copper u-tube! I just used the old one: it’s main function I think is to stop the fuel slurping down from the tank.
Since then I got my hand on another original used one: you never know.
So I suggest you use what you have: don’t fix it if it ain’t broke 👍

Jan S

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  • Posts: 13
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  • Location: Norway
Re: W116 4.5 and 6.9 fuel assembly
« Reply #2 on: 13 October 2020, 02:06 PM »
Thanks, hamidagha!

Yes, I believe I will clean it and reuse.

I just read this chain https://forum.w116.org/mechanicals/fuel-pump-assembly/

Very good!
1975-mod W116 450 SE with 6.9 engine