REFLECTOR: Severely rough-running Franklin

[John Dibble]

Has your 10 hrs of flying been at full power?  Over a 2 month period I
flew mine just a few hours at reduced power because I was just doing
some local sight seeing and full power speed is rough at low altitudes.
Then when I took off for a 5 hour trip, It was missing a lot so I
returned and checked the plugs.  All were fine except #1.  The gaps were
completely fouled (no gap at all), even on the EI plug.  I was surprised
at how quickly a plug can foul.
John

Hiroo Umeno wrote:

> So... I gave my plane its first oil change.  It has about 10 hours
> now.  As expected with a newly overhauled engine, there are some very
> fine dark powder mixed in the oil.  No big chunks or shavings.  So
> far, so good. After the oil change, I tried starting the engine.
> Using the primer, I tried a few times and just could not get it to run
> consistently.  It will fire and do an uneven "shakes and rattles" and
> after a few seconds, it will die back down.  One time, I got it to run
> for about one minute but the running was rough and really uneven and
> would not idle as it used to. Subsequently, it just will not go beyond
> a few rattles and shakes.  My wife observed a faint white smoke blow
> out of the exhaust stack when it "rattles" and a few times a darker
> smoke subsequently. What should I look into? Hiroo
>
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