Assembly help - Fuel distributor to throttle body - 560 SEL

[hbofinger]

I am finishing of the plenum seal job on my 1989 560SEL. I have fitted a new rubber air scoop ("mixture housing") below the fuel distributor.

The problem is when I try to mount the fuel distributor assembly on to the intake manifold the housing scoop will not fully slide over the throttle assembly. There does not appear to be any room for a hose hook.

Has anyone else run across this problem, and if yes, how did you work around it?

Thanks for any pointers...