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Cleaning intake manifold/head

Discussion in 'General Tech and Maintenance' started by littlecrxVTEC, Jan 13, 2007.

  1. littlecrxVTEC

    littlecrxVTEC Junior Member

    Likes Received:
    Aug 30, 2004
    Just wondering why my intake runners on the furthest sides of the motor were gummed up worse than the rest?

    What I mean is this:

    The runners (and ports in the head) in the middle of the motor were very clean (cylinders 2 and 3). But the first runner/port on the #1 cyl and the last runner/port on the #4 cyl were gummed up... Just curious why this happened?
  2. pissedoffsol

    pissedoffsol RETIRED

    Likes Received:
    Sep 28, 2002
    Retirement Home
    dirt is easier to get at the sides than the middle ones. plus #3 is the hottest cyl due to firing order and placement. 2 & 3 can possibly burn more crap due to their heat than the outside ones.

    also, could be early signs that your valve seals need to be replaced soon.

    run a leakdown test too, see what kind of variance comes up.
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