Originally Posted by Bio300TDTdriver

That's my kind of helper. What are you going to do about the zip tied part? How long will it take you to get back to it?

Originally Posted by curlytom

JimmyL - What is the condition of your CCV breather hoses and manifold to the intake? Mine were so brittle that all the nipples connecting the IM broke off.

Originally Posted by JimmyL

What is the valve on bottom of an OM606.910 crossover pipe and what does it do? I am in the process of tunneling down to my glow plugs [] and when I finally got the crossover pipe removed there is a valve on bottom that appears to have a vac line to it.
The vac line is capped off and the valve is tie-wrapped open I guess with two black tie-wraps.

Originally Posted by Number_Cruncher

It's part of the resonance flap system.

You'll find another similar valve under the manifold itself - in fact, you'll be able to see the flap by where the ports are for the cross over pipe.

The resonance flaps are controlled by the same control unit which switches the EGR and the partial throttle which is just upstream of the EGR.

The resonance flaps are opened to tune the effective manifold length at different engine speeds. At low speeds, the flaps make the effective manifold length very long (think of the long organ pipes which produce the low notes), and, as the engine speeds up, the valves open, effectively shortening the length of the individual manifold pipes.

It's generally thought worthwhile to have the resonance flaps working properly, and investigating why the tie-wraps are there, and why the system was disabled.