REFLECTOR: Franklin Magneto/inspection/priming questions
John Dibble
aminetech at bluefrog.com
Sun Aug 2 10:55:44 CDT 2009
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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