REFLECTOR: Severely rough-running Franklin

[Hiroo Umeno]

Thanks.

The plane was flown for 3.2 hours after I fiddled with (cleaned) the plugs and this time around, I just changed the oil, so I didn't touch the plugs.  I will check them anyhow.

My engine case has cylinder number engraved on it up top and I matched those numbers to the numbers engraved on the mag harnesses.  I will check again.

Hiroo

-----Original Message-----
From: reflector-bounces at tvbf.org [mailto:reflector-bounces at tvbf.org] On Behalf Of mike deeter
Sent: Sunday, October 29, 2006 11:33 PM
To: Velocity Aircraft Owners and Builders list
Cc: Evan Harris; Brian Michalk; Joel Smith
Subject: Re: REFLECTOR: Severely rough-running Franklin

Sorry to state the obvious, but....

If you messed with the plugs or plug wires, check that the spark plug wires are on their correct plugs.

As incredible as it may seem a buddy of mine, who shall remain unnamed (but his initials are 'Brian Michalk' :-)), had his on wrong and the engine, of course, ran very rough.

By the way, also incredibly, my Franklin manual had an incorrect diagram showing the numbering of the plug wires so it's not that incredible that you could have them on wrong.

Mike Deeter


--- Hiroo Umeno <humeno at microsoft.com> 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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*******************************************
Mike Deeter
N2011 Test Pilot
iguanamagic at yahoo.com
http://iguanamagic.siegesmund.org
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