Can anyone identify this engine part?

Hi

I am rebuilding a 97 4.0 SOHC Explorer engine to go into by Ford Sierra XR4x4. I have just come across a huge problem that the Oil Pan doesn't fit from my 2.9 as there is this thing (the long cylindrical bit, see pics) in the way.


pic 1 (http://www.area51.org.uk/projectcar/images/twinturbo/40/rebuild/wtf_is_it_1.jpg)

pic 2 (http://www.area51.org.uk/projectcar/images/twinturbo/40/rebuild/wtf_is_it_2.jpg)

pic 3 (http://www.area51.org.uk/projectcar/images/twinturbo/40/rebuild/wtf_is_it_3.jpg)

pic 4 (http://www.area51.org.uk/projectcar/images/twinturbo/40/rebuild/wtf_is_it_4.jpg)

The Haynes manual doesn't even mention it and the pics with the pan off don't show it. Can anyone tell me what it is and what it does any help would be much appreciated.


thanks
Robert

I like the file names. ;)

Sorry, but I don't know. :confused:

Just to clarify, though, do you mean this part?

thats the bit, I should have done that really when I uploaded the pics :rolleyes:

Originally posted by Robert XR4x4
thats the bit, I should have done that really when I uploaded the pics :rolleyes: Don't worry, I've got your back. ;)

cheers jay :)

I have just found out from an Explorer bbs

The item in the photo is a counter ballance shaft. Its job is to help reduce lower end harmonic vibration within the engine. It is spun the oppisite direction of the crankshaft while the engine is running. By spinning it in this direction the shaft cancels out most of the harmonic vibrations caused by the crankshaft.