Author Topic: More 6.9 throttle linkage shenanigans  (Read 3035 times)

revilla

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Re: More 6.9 throttle linkage shenanigans
« Reply #15 on: 15 December 2019, 09:26 PM »
Or, can somebody show a picture of a “straight” one still in assembled position? If that exists...(?). That will solve the mystery.

Statistically so far I would definitely say bent is the norm.
Robert
W116 1977 280SEL & 1979 280SE

daantjie

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Re: More 6.9 throttle linkage shenanigans
« Reply #16 on: 16 December 2019, 09:25 AM »
Part number is 116 300 0815 from what I can gather from the EPC.  There appears to have been many versions and iterations of the linkages over the different models over the years as well KJET vs DJET, not sure if there was perhaps a model year/chassis split in this linkage for the 6.9?  However I am pretty certain now that we have seen multiple examples that this "bell crank" at the firewall indeed should have an angle on the vertical rod.
Daniel
1977 450 SEL 6.9 - Astralsilber

daantjie

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Re: More 6.9 throttle linkage shenanigans
« Reply #17 on: 16 December 2019, 02:41 PM »
OK guys, we can put this one to bed ;D  I found the actual parts explosion diagram in the 6.9 service manual.  You will see the bell crank in question clearly has an angled rod, case closed ;)

So if your 6.9 does not have this rod bent, then it's bench time for you 8)
Daniel
1977 450 SEL 6.9 - Astralsilber

raueda1

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Re: More 6.9 throttle linkage shenanigans
« Reply #18 on: 16 December 2019, 05:59 PM »
OK guys, we can put this one to bed ;D  I found the actual parts explosion diagram in the 6.9 service manual.  You will see the bell crank in question clearly has an angled rod, case closed ;)

So if your 6.9 does not have this rod bent, then it's bench time for you 8)
Nice work. And that diagram is gold.  Thanks for persevering.
-Dave
Now:  '76 6.9 Euro
Before that:  1966 230S, 1964 220SE coupe, 1977 Carrera 3.0

daantjie

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Re: More 6.9 throttle linkage shenanigans
« Reply #19 on: 17 December 2019, 08:06 AM »
Thanks Dave yes I was like a dog with a bone on this one ;D

To my eye this setup, which appears unique to the 6.9 gives you a "preload" of sorts on the throttle linkage.  Perhaps for faster throttle response?  Who knows...
Daniel
1977 450 SEL 6.9 - Astralsilber