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To: lml@lancaironline.net
From: "Jeffrey Liegner, MD" <liegner@embarqmail.com>
Subject: Re: [LML] Re: Gear Hand Pump LIV
Cc: "William A. Hogarty" <billhogarty@gmail.com>
Bcc:
X-Attachments: :Macintosh HD:402137:Gear Hand Pump LIV.1.jpg: :Macintosh HD:402137:Gear Hand Pump LIV.2.jpg:
Here's a basic camera photo of the Gear Hand Pump handle mod.
re: Hydraullic pump mod:
Jeff: A picture of your mod would be appreciated. Also, what did the mod cost.?
Thanks, Bill Hogarty
On Thu, Sep 1, 2011 at 10:27 AM, <<mailto:liegner@earthlink.net>liegner@earthlink.net> wrote:
Brad Simmons (talented professional builder in Milan TN)
has shown me a modification to the
gear handle that solved this problem. The leaking hydralics at the
pump housing (which I had rebuilt three of four times to stop this)
must come from these little bumps and wiggles occurring against the
handle, permitting hydralic fluid to sneak past the seals.
Using a machinist, the handle is cut short leaving ~40% (coming off
the pump), and a female fitting incorporated into the cut end. The
other 60% handle (with the bulb on end) gets a long male screw
mounted inside the hollow end. When screwed together, the handle is
solid. The 60% handle then sits elsewhere (side pouch or behind the
passenger front seat or cleated under the front spar lip).
This opens up the entire leg area previously blocked by the handle
projecting out over the spar, and also significantly reduces the
presence of the handle/pump profile sitting between the seats.
Without the occasional bumps on the handle, small leakage from the
pump seals seems to have stopped.
I sent my handle to Brad <<mailto:dl60280@bellsouth.net>dl60280@bellsouth.net> and he returned it
in two weeks machined and ready for reinstall.
Jeff Liegner
LIVP in New Jersey
>
>To: <mailto:lml@lancaironline.net>lml@lancaironline.net
>From: "Nicholas Paczkowski" <<mailto:npaczkowski@telus.net>npaczkowski@telus.net>
>Subject: Gear Hand Pump LIV
>
>Perhaps a dumb question (apologies in advance) but Is there a better
>alternative available to the manually operated hydraulic 'gear down'
>lever (such as a charged gas bottle) that would eliminate both the
>awkward lever and the seemingly inevitable leaking of hydraulic
>fluid? Thanks.
--
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