Convoluted pipe.

[Mouldy626]

Hi all. On the gearbox side of my head on my 2001 vts, I have a metal convoluted tubing exiting into a pipe running along front of the head, above ex manifold. Is this something to do with emissions and can I disconnect it and fit a blanking plate and it run ok? When I had the head off and valves out, I noticed, in exhaust ports, there was a small hole in each leading into head casting to this convoluted pipe. Thanks for any light shedded.

[stevo67]

Yes it is emissions based & can be blanked off mate.

[Mouldy626]

Brilliant Stevo! Thanks very much. Couldn't find much on it. Guess something to do with an air pump or something?

[axsaxoman]

dump air pump at same time

[Mouldy626]

Cheers aswell axsaxoman. Checked out your GMC site and bookmarked!

[johnnyg_vts]

A quid fits perfect in the old flange..
http://s4.postimg.org/8im5kwu5l/image.jpg (http://postimg.org/image/8im5kwu5l/)

http://s4.postimg.org/e5dx4n7ah/image.jpg (http://postimg.org/image/e5dx4n7ah/)

[axsaxoman]

or you coukld just mig weld up the hole in the old flange,but good idea finding the coin that fitted .LOL