REFLECTOR: Franklin Fuel Pumps

[Michael Watson]

Wurzel,

What is a PLL-7-6R Franklin engine? I though the Franklin engines
used on the Velocity aircraft was the 6A-350-C1.

If that's what you have, there was a AD issued to replace the
piston type fuel pump with a vane type. The AD can be found
on www.tvbf.org under Franklin engines. The Franklin is and
outstanding engine.



On 10/2/07, wurzel parsons-keir <wurzel at ccpu.com> wrote:
>
> After an otherwise lovely flight yesterday, I found blue fuel
> spatter around the vent tube coming from my fuel pump.  I understand
> that means some seal isn't good any more and I'm grounded
> until it's fixed.
>
> I've gone back through various reflector postings on Franklin
> fuel pumps, but I'm not sure I have all the information.
>
> My engine has a PLL-7-6R which was installed in Dec 2002.
>
> I don't see anything in the logbook to suggest that
> AD # SP- 0048-2003-B was complied with.  I'm having trouble
> finding Service Bulletins No. PZL-F/75/2003 using
> Google.  I see lots of references to it, but not the
> actual document.  Any pointers?
>
> Rick (builder of N570) had a theory when he built the airplane...
> "assume every company is going to go out of business and buy two
> of everything".  So I have a brand-new PLL-7-6R sitting in a
> box.  From the paperwork it looks like it was produced
> in 2002, also before the Service Bulletin.
>
> So, from those who are more familiar with this:
> 1) Are all PLL-7s junk, or is there some chance I have a workable
>    spare here?
>
> 2) Any pointer on where to find the Service bulletin?
>
> 3) Do these pumps have any replacable washers/gaskets etc so
>    that I could just rebuild the pump that is installed rather
>    than using my new one?  The one that's on there only
>    has 200 hours on it.
>
> 4) I saw the previous posts mentioning a weldon replacement.
>    It sounded like that was a diaphagm type?  Is there any reason
>    I would want to go back to that instead of the sliding vane?
>
>                                                 Many thanks,
>                                                         -wurzel
>
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-- 
Mike W.
1997 Velocity Elite RG
Franklin /IVO Electric CS
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