Is there away to clean the system out without spending a fortune.
I assume you mean the inlet manifold??? It is pretty straight fwd, i had the manifold off of mine and soaked it in a bucket of solvent for 2 days and then gave er a good scrub with a bottle brush taped to a stuck (essentially) there are parts washers that will do it quicker and probably better, but i had time to let it sit, to clean the inlet ports of the head,.......... weeelllllll thats something i would remove the head for (big job, head gasket and bolts 200ish bucks), you definetly dont want to scrub that away, fill a cylinder with crap and corruption or worse ( my head coincedentally was replaced at this stage, the head is ported in such a way that the inlet port is the 2 valves at the front of the cylinder, (1 valve opened by each cam) and exhaust is at the back, so to scrub that u need to go in, around both valves etc etc, a royal pain in the arse, requires a robo washer
I would probably not worry about cleaning these out to be honest, unless you've disassembled it for another reason its a large job and i am not hugely convinced doing this as a standalone job really has the benefit you may think,
Has this made a big difference to the way mine runs?? Not as big as i would have expected it does seem to run smoother, but that may be purely psychological, i had to do a full rebuild and replace the head on mine at the same time, which is why it was apart
remember the turbo will force air into the hole regardless
For background, my car had 365000 on the clock, ( EGR blanked for about half of that) and there was about a 5 mm layer of hard gooey tar like **** covering the entire internal surface of the inlet manifold and head
