REFLECTOR: Franklin Magneto/inspection/priming questions
John Dibble
aminetech at bluefrog.com
Tue Aug 4 13:50:40 CDT 2009
Where can I get 2 of them?
Michael Watson wrote:
> John,
>
> The PZL nozzles injects a fine misty fuel spray into the manifold, not
> enough
> to cause fuel run back to the carb. I'm in Florida now so I only need
> two to three
> seconds to get engine start on the first or second rotation. When I
> lived In New
> York, during the winter, 3 to 4 seconds would do the job.
>
> On Tue, Aug 4, 2009 at 8:50 AM, John Dibble <aminetech at bluefrog.com>
> wrote:
>
> Sorry, Larry, I'm not ignoring your advice and will check if
> I have the spray nozzle
> and if not, look into installing one. This will take time
> and given that I have 700
> hours without incident and know how to avoid fuel flowing
> out the induction, I have
> other higher priorities to address first. That said, it
> seems like priming while the
> engine is already turning would be an even safer, if not
> failsafe, procedure that I can
> use immediately. Since this procedure is not normal, I
> wanted to solicit comments from
> the wealth of knowledge on the reflector.
> I prefer to think of my self as difficult, but not
> impossible, to help. I am curious
> to know what you see on the ground below your air intake
> after priming for 5 seconds
> without turning the engine.
>
> John
>
>
>
> Laurence Coen wrote:
>
> > John,
> >
> > I tried to help you, Mike Watson tried to help you but now
> I think you are
> > beyond help.
> >
> > Larry
> >
> > --------------------------------------------------
> > From: "John Dibble" <aminetech at bluefrog.com>
> > Sent: Monday, August 03, 2009 7:40 PM
> > To: "Velocity Aircraft Owners and Builders list"
> <reflector at tvbf.org>
> > Subject: Re: REFLECTOR: Franklin
> Magneto/inspection/priming questions
> >
> > > I think I might try using the primer while the engine is
> cranking, unless
> > > there is a
> > > reason not to.
> > >
> > > John
> > >
> > > Laurence Coen wrote:
> > >
> > >> John,
> > >>
> > >> I've never had a no-start. Your description of raw gas
> flowing out the
> > >> induction would indicate to me that your primer has no
> nozzle and dumps a
> > >> solid stream of fuel into the manifold. There are two
> things wrong with
> > >> that, if that is the case. First you will dump a lot
> of fuel in a very
> > >> short time making it difficult to do it right. Second,
> liquid fuel
> > >> doesn't
> > >> burn but vapors do. A nozzle both meters the fuel and
> atomizes it which
> > >> improves vaporization. If you have a 1/8" pipe fitting
> into the manifold
> > >> with no nozzle then that is your problem, not location.
>
> > >>
> > >> Raw fuel running out of the induction system has been
> the cause of quite
> > >> a
> > >> number of engine fires on start-up.
> > >>
> > >> Larry Coen
> > >> N136LC
> > >>
> > >> --------------------------------------------------
> > >> From: "John Dibble" <aminetech at bluefrog.com>
> > >> Sent: Sunday, August 02, 2009 10:55 AM
> > >> To: "Velocity Aircraft Owners and Builders list"
> <reflector at tvbf.org>
> > >> Subject: Re: REFLECTOR: Franklin
> Magneto/inspection/priming questions
> > >>
> > >> > Larry,
> > >> > I have a similar prime setup. Have you ever primed
> and not started?
> > >> > Mine
> > >> > is connected
> > >> > to the front primer port and the fuel will pour out
> the carb if I do
> > >> > not
> > >> > start
> > >> > imediately. I'm considering moving it to the middle
> or rear port, but
> > >> > want to know if
> > >> > it will do any good.
> > >> >
> > >> > John
> > >> >
> > >> > Laurence Coen wrote:
> > >> >
> > >> >> Jeff,
> > >> >>
> > >> >> I too have a Goodman engine that sat for about five
> years. It sounds
> > >> >> like
> > >> >> you took good care of it while it was in storage so
> I don't think you
> > >> >> need
> > >> >> to do much but put in fresh oil and fire it up.
> That is what I did
> > >> >> and
> > >> >> three years later it is running fine with
> compressions running 79/80.
> > >> >>
> > >> >> Priming is something you will need. Priming by
> pumping the throttle
> > >> >> with
> > >> >> an
> > >> >> updraft carb is an engine fire waiting to happen.
> There are primer
> > >> >> manifolds that mount on the bottom of the intake
> manifolds but they're
> > >> >> pricey. I built my own primer system that works
> very well. I
> > >> >> pressurize
> > >> >> the fuel system with the electric pump and have a
> solenoid valve that
> > >> >> is
> > >> >> operated with push button on the panel. I inject
> fuel into the center
> > >> >> primer ports on both sides of the engine. I made my
> own injectors
> > >> >> from
> > >> >> 1/8"
> > >> >> flare to 1/8" pipe elbows. The injector nozzle is a
> brass screw
> > >> >> threaded
> > >> >> into the elbow and center drilled with a #60 drill.
> Two to five
> > >> >> seconds
> > >> >> prime, depending on temp, does the job.
> > >> >>
> > >> >> Larry Coen
> > >> >> N136LC
> > >> >> SE/RG Franklin/IVO
> > >> >>
> > >> >> --------------------------------------------------
> > >> >> From: "Jeff Clough" <jclough48 at comcast.net>
> > >> >> Sent: Thursday, July 30, 2009 8:23 AM
> > >> >> To: "Velocity Aircraft Owners and Builders list"
> <reflector at tvbf.org>
> > >> >> Subject: REFLECTOR: Franklin
> Magneto/inspection/priming questions
> > >> >>
> > >> >> > FINALLY getting around to hooking up my Franklin
> engine to hopefully
> > >> >> > test fire it soon......a few questions:
> > >> >> > 1: I have Rose dual ignition....am planning on
> using 1/2 of this
> > >> >> > set
> > >> >> > up for one set of spark plugs and a magneto for
> the other set of
> > >> >> > plugs....what magneto are others
> using and where can I
> > >> >> > get
> > >> >> > one????
> > >> >> > 2: How did others route/support their ignition
> wires through/under
> > >> >> > the
> > >> >> > Franklin plenum....got any pictures you can send
> to me off Reflector
> > >> >> > ??
> > >> >> > 3: I purchased my engine new from Pat Goodman
> back in about 1997 (I
> > >> >> > think).....He had test run it, but it has not been
> run since then.
> > >> >> > I
> > >> >> > removed the plugs and put oil in the
> cylinders several
> > >> >> > time
> > >> >> > over the ensuing years , the engine has been in a
> hangar here in DRY
> > >> >> > Colorado or in my heated garage in Alaska
> in the subsequent
> > >> >> > years....should it be inspected or have gaskets
> replaced etc???? I
> > >> >> > think there are some Franklin pros in Ft Collins
> CO (about 1 hour
> > >> >> > away)...should I pull the engine off (again)
> and take it to
> > >> >> > them
> > >> >> > for inspection/servicing or should I run it for a
> while on my
> > >> >> > airframe
> > >> >> > (break it in on my airframe
> while on the
> > >> >> > ground
> > >> >> > and then (perhaps?) have it inspected/serviced ??
> > >> >> > 4: I currently DO NOT have a priming
> system......is it necessary
> > >> >> > to
> > >> >> > have one or will the engine start w/out it just by
> cranking a bit
> > >> >> > longer??? If I need a priming system ,
> is there a
> > >> >> > packaged
> > >> >> > system available??
> > >> >> >
> > >> >> > Thanx for all your input(s) Jeff C
> Brighton CO 173RG
> > >> >> > Clamshell IVO Franklin
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> > >> >>
> ------------------------------------------------------------------------
>
> > >> >>
> > >> >> Internal Virus Database is out of date.
> > >> >> Checked by AVG - http://www.avg.com
> > >> >> Version: 8.0.175 / Virus Database: 270.12.45/2141 -
> Release Date:
> > >> >> 5/29/2009 6:28 AM
> > >> >
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> > >>
> ------------------------------------------------------------------------
>
> > >>
> > >> Internal Virus Database is out of date.
> > >> Checked by AVG - http://www.avg.com
> > >> Version: 8.0.175 / Virus Database: 270.12.45/2141 -
> Release Date:
> > >> 5/29/2009 6:28 AM
> > >
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> ------------------------------------------------------------------------
>
> >
> > Internal Virus Database is out of date.
> > Checked by AVG - http://www.avg.com
> > Version: 8.0.175 / Virus Database: 270.12.45/2141 -
> Release Date: 5/29/2009 6:28 AM
>
> _______________________________________________
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>
>
>
> --
> Mike W.
> 1997 Velocity Elite RG
> Franklin /IVO Electric CS
> Dual GRT EFIS HX Synthetic Vision
>
> ----------------------------------------------------------------
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> ----------------------------------------------------------------
>
> Internal Virus Database is out of date.
> Checked by AVG - http://www.avg.com
> Version: 8.0.175 / Virus Database: 270.12.45/2141 - Release Date:
> 5/29/2009 6:28 AM
>
>
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