REFLECTOR: Engine back together

[Geoff Gerhardt]

John,

I noticed last week that the post that describes my engine was cut short,
I'm not sure if this part of the rebuild was covered.  I've corrected that
now, tho, so you can see process I used there now (
http://thegerhardts.com/velocity/?p=397 ).

In summary, I did not use silk thread, instead I used Loctite 515 only.
 There is a Lycoming service
instruction<http://www.lycoming.com/support/publications/service-instructions/pdfs/SI1125D.pdf>that
describes this option.  My engine had silk thread on it when I opened
the cases.  There wasn't much silk thread left, but you could clearly see
marks on the case parting lines where the thread was.

Now, I recently started my engine and did notice a little oil seepage along
the top case part near the front of the engine.  I tightened the bolts
around the seepage and have not noticed any more, but I haven't run it all
that much.  My advice would still be to use the Loctite 515, but I would
apply it to both sides of the case (the Lycoming service note indicates
that it should only be applied to one side).

If you're going to use Loctite 515, you just need to buy the little 6mL
<http://www.mcmaster.com/#loctite®/=i6r8hk>tube of it (similar in size to
the tube of loctite thread locker).  You could probably build 5 engines
with that amount as you only put a thin coat on the case parting surface.

Geoff

On Fri, Jun 29, 2012 at 7:50 AM, John Dibble <aminetech at bluefrog.com> wrote:

>  Geoff,
>
> I'm getting ready to reassemble my Franklin engine.  Did you use silk
> thread on the case?  When I disassembled, I saw no sign of any silk
> thread.  Did your engine have silk thread when you disassembled?  Is it
> easy to spot?  A friend has recommended a sealant used on motorcycle
> engines and I'm considering that.
>
> Thanks,
>
> John
>
>
> On 6/17/2012 7:41 PM, Geoff Gerhardt wrote:
>
> Guys,
>
>  Well, it took a couple months, but my engine is back hanging on my
> plane.  This time completely rebuilt, all shiny and new(ish).  For those
> who haven't kept up, I bought a 500hr engine that I found needed an
> overhaul after first taxi.  I pulled the engine off my plane, brought it
> back home, dissembled it and sent everything out for rebuild/inspection.  A
> few weeks ago, everything arrived back and over the last couple weeks I put
> it back together and on Friday mounted it back on the plane.  I haven't
> turned it over yet, still a few things to plumb and connect.  Should be
> sometime this week.
>
>  Anyway, I took lots of pictures during the reassembly process and put
> together a pretty comprehensive post describing the process.  Anyone
> considering rebuilding their Lycoming might find it useful.
> http://thegerhardts.com/velocity/?p=397
>
>  Geoff
>
>
>
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