Hi Terry, I know at least 2 5000 2 valve owners that have enjoyed many trouble free miles with their CT - so it seems that this piece is not a chronic problem - there must be something that is causing it - if you changed the pieces and the same problem occured it may be something else - you say that in Spain there are very few CT cars and ther is a lack of qualified mechanics that know the CT - truck it to Italy where there is experince with these older motors - even to Top Motors - do it once but do it right - JMHO - Alex