y4n Posted April 19, 2008 Report Share Posted April 19, 2008 (edited) A while ago, i took the four restrictor pipes off in the inlet manifold area. After removing them i noticed a lot of black gunk that covered all four inlet pipes. (i'm guessing the EGR system is responsible for this build up!)Today i decided to have a go at trying to get rid of this black gunk.So i started off with removing the air box that sat on top of the inlet manifold (five bolts):This then reveals six bolts that holds the inlet manifold in:This is the build up of gunk i was talking about!:The gunk was quite hard, so i used a lot of brake cleaner and scrubbed it till the crap came off:(This is the amount of gunk that came out only after partially cleaning one inlet!)Sorry no pictures of it all cleaned because my camera died! After removing all the gunk, you can actually see the bore clearly and bigger!Test Drive: A lot more respoonsive and revs looser and smoothly. Car feels much better and i recommend disconnecting and blocking the vacuum line that connects to the EGR valve so non of this gunk will build up again.Cheers for reading. Edited April 19, 2008 by y4n Quote Link to comment Share on other sites More sharing options...
mikesdi Posted April 19, 2008 Report Share Posted April 19, 2008 hi how did the car feel after you removed the restrictor pipes? Quote Link to comment Share on other sites More sharing options...
y4n Posted April 19, 2008 Author Report Share Posted April 19, 2008 the car felt looser, feels much better now though! Quote Link to comment Share on other sites More sharing options...
jon_273 Posted April 20, 2008 Report Share Posted April 20, 2008 Good pics, thanks for sharing! I've read about this kind of thing quite a lot with the 1.9 diesels; I suppose it would affect all models.How many miles has it done? Have you had the engine check light come on since disconnecting the EGR vacuum line? Quote Link to comment Share on other sites More sharing options...
y4n Posted April 20, 2008 Author Report Share Posted April 20, 2008 hi Jon, my car has just hit 50,000 miles on the clock. Ever since i've done this, i have driven it for around 40 miles now and all is well. no engine check light or anything. Quote Link to comment Share on other sites More sharing options...
jon_273 Posted April 20, 2008 Report Share Posted April 20, 2008 I expected it to be higher than that, judging by the amount of black gunk! It shouldn't build up again anyhow. Quote Link to comment Share on other sites More sharing options...
y4n Posted April 20, 2008 Author Report Share Posted April 20, 2008 yeh i was really suprised by how much crap there was. It took a while taking it all off as well, was well baked on. Quote Link to comment Share on other sites More sharing options...
SC02 FFF Posted April 20, 2008 Report Share Posted April 20, 2008 (edited) makes me want to clean mine, how easy is it to take off? also is it worth it in a 1.4sport? Edited April 20, 2008 by Scoff Quote Link to comment Share on other sites More sharing options...
y4n Posted April 20, 2008 Author Report Share Posted April 20, 2008 Was very easy to take off. i don't know anything about the 1.4 engines so can't help you there. Quote Link to comment Share on other sites More sharing options...
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