Some symptoms, Power feels bleah, Economy is shot, doesn't spool well, has started to backfire even more often than normal, lastly, even a wheezy NC can catch you......
WTF's wrong, most likely this........
NOTE: for those SP owners smiling saying nothing wrong with mine, most of the nuts removed to do the following were tight
Clear evidence of cylinders 1,2,3 and 4 leaking exhaust.
NOTE: centre stud has even managed to unwind itself, here it has been removed for a new one.
Clear evidence of cylinders 1,2,3 and 4 leaking exhaust past the gasket.
Possible reasons for metal on metal shriek some get, Exhaust manifold to turbo housing gasket has faaaaaaaaaaaaiiiiiiillllllllleeeeddddddddd
Obviously the stud is not meant to be there, it is to demonstrate how badly the gasket has failed.
Part of the reason for the above failure.
NOTE: original manifold to turbo stud shown on left next to it replacement which is easily 4mm longer, original nut for same lower centre, this nut is capable of the task BUT given the shortness of the stud the two locking tabs come to rest on top of the stud whereas they should be on a few turns and thusly binding onto the stud.
and from a different angle.
Larger nut pictured is the original that held the manifold to the block.
Pretty copper looking ones are the Inkonel Alloy ones, these are designed to go ON and stay ON
Manifold to turbo housing studs being removed for replacement with longer ones.
Nicely machined Manifold.
Reliefs being made into exhaust manifold so it can be bolted on properly.
There's a few more photos to get and a list of what needs replacing to come, so stay tuned.
SPy
