[NSRCA-discussion] Desperate

[Kevin Sung]

John,

How is the engine head gasket?  You have mentioned the head bolts are tight,
but didn't mention the condition of the gasket.  A friend of mine has the
similar problem you have, and it was caused by the head gasket.

Kevin
  -----Original Message-----
  From: nsrca-discussion-bounces at lists.nsrca.org
[mailto:nsrca-discussion-bounces at lists.nsrca.org]On Behalf Of John Konneker
  Sent: Wednesday, May 28, 2008 5:58 PM
  To: General pattern discussion
  Subject: Re: [NSRCA-discussion] Desperate


  Arch,
  How loose were yours?  I just took the motor off the mount and checked
them.  I was able to snug them up.  They weren't falling out loose but they
weren't tight/tight either.  The engine is on a FocusII.  You know how the
cheek cowls are like on a French CAP aerobatic plane?  I have the rear of
those opened up.  I get residue coming out of that on the exhaust side and
the inside of the cowl on that side is wet too.  The firewall is wet but
again only on that side.  It would seem the stuff is coming out too high up
to be the injector or exhaust flange but so far all my guesses have been
wrong.  I'm still batting 1,000.
  JLK




----------------------------------------------------------------------------
    From: astafford at swtexas.net
    To: nsrca-discussion at lists.nsrca.org
    Date: Wed, 28 May 2008 19:35:18 -0500
    Subject: Re: [NSRCA-discussion] Desperate


    John,



    Check the backplate bolts.  I had similar symptoms and it was raw fuel
coming out of the backplate.  The motor still runs fine because it doesn’t
depend on pressure for fuel delivery.  Check all 4 of the bolts on the
backplate,



    Arch






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    From: nsrca-discussion-bounces at lists.nsrca.org
[mailto:nsrca-discussion-bounces at lists.nsrca.org] On Behalf Of John Konneker
    Sent: Wednesday, May 28, 2008 7:22 PM
    To: General pattern discussion
    Subject: Re: [NSRCA-discussion] Desperate



    Jason,
    I'll try to track that down.  It seems that it's confined to the exhaust
side.  Very clear residue.  Exhaust...?  Raw fuel..?
    Man I just don't know...
    JLK


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    From: jshulman at cfl.rr.com
    To: nsrca-discussion at lists.nsrca.org
    Date: Wed, 28 May 2008 20:11:43 -0400
    Subject: Re: [NSRCA-discussion] Desperate

    What about the o-rings around the valves



    Regards,
    Jason
    www.jasonshulman.com
    www.shulmanaviation.com
    www.composite-arf.com

    -----Original Message-----
    From: nsrca-discussion-bounces at lists.nsrca.org
[mailto:nsrca-discussion-bounces at lists.nsrca.org]On Behalf Of John Konneker
    Sent: Wednesday, May 28, 2008 8:04 PM
    To: Discussion List
    Subject: [NSRCA-discussion] Desperate

    I have a bad fuel/exhaust leak on my YS 1.60.  It started just before my
NMP header split but continued after replacing with
    a Hatori header and 821 muffler.  I'm getting pretty desperate trying to
find it.  I have replaced all the fuel lines.  I have snugged up
    the flange that screws in to the head.  I have retightened the header
flange.  I have checked the valve cover gasket.  I have checked
    the head bolts but it still leaks.  I consider the leak bad enough that
if I don't get it fixed by tomorrow I will have to miss my second contest in
a row because of it.  It really soaks the inside of the engine compartment
on the left (exhause) side.  Bad enough that when I run my finger down the
firewall it is wet with oil.  The engine mount beams on the bottom sides are
almost dripping.
    Any thoughts?
    Thanks!
    JLK

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