IO 470 Fouled Plug

My engine analyzed is telling me that the spark plug on the #6
cylinder, left mag is fouled. I have a new plug, but can't tell which
cylinder #6 is and whether it's the plug on the top or the bottom....
Can anyone tell me which plug it is...?

Thanks much,

Anthony

Anthony wrote:
My engine analyzed is telling me that the spark plug on the #6
cylinder, left mag is fouled. I have a new plug, but can't tell which
cylinder #6 is and whether it's the plug on the top or the bottom....
Can anyone tell me which plug it is...?

Number 6 is the rearmost cylinder. Trace the wires to work out which plug is
connected to the left mag.

George Patterson
Coffee is only a way of stealing time that should by rights belong to
your slightly older self.

I think that the cylinders are numbered on the intake manifold. THe
number is cast right into the manifold. Also, I believe that the bottom
plugs are the ones that tend to foul. Did you try to do a lean runup to
try and "un-foul" the plug? I have had good luck doing that.

Jon Kraus
'79 Mooney 201
4443H @ TYQ




Anthony wrote:
My engine analyzed is telling me that the spark plug on the #6
cylinder, left mag is fouled. I have a new plug, but can't tell which
cylinder #6 is and whether it's the plug on the top or the bottom....
Can anyone tell me which plug it is...?

Thanks much,

Anthony

In article YyBCf.1306$Ix.796@trnddc07,
George Patterson wrote:

Anthony wrote:
My engine analyzed is telling me that the spark plug on the #6
cylinder, left mag is fouled. I have a new plug, but can't tell which
cylinder #6 is and whether it's the plug on the top or the bottom....
Can anyone tell me which plug it is...?

Number 6 is the rearmost cylinder. Trace the wires to work out which plug is
connected to the left mag.

George Patterson
Coffee is only a way of stealing time that should by rights belong to
your slightly older self.


I have an old Continental Operators's handbook (for the E-225 series),
which shows #1 as rifgt rear, #6 is left front. I doubt that Continental
has changed their numbering system on the O-470 series.

On a Lycoming, #1 is right front; #6 is left rear.

--
Remve "_" from email to reply to me personally.

Orval Fairbairn wrote:

I have an old Continental Operators's handbook (for the E-225 series),
which shows #1 as rifgt rear, #6 is left front. I doubt that Continental
has changed their numbering system on the O-470 series.

According to my A&P at the time, right front was #1 on my Continental O-200.

George Patterson
Coffee is only a way of stealing time that should by rights belong to
your slightly older self.

"George Patterson" wrote in message
news:mQCCf.13187$K17.13085@trnddc03...
Orval Fairbairn wrote:

I have an old Continental Operators's handbook (for the E-225 series),
which shows #1 as rifgt rear, #6 is left front. I doubt that Continental
has changed their numbering system on the O-470 series.

According to my A&P at the time, right front was #1 on my Continental
O-200.

George Patterson
Coffee is only a way of stealing time that should by rights belong to
your slightly older self.

Right rear is #1 on an O-200. Left front is #4.

"Prooving" that on different engines there are different numbering
schemes.

I have an old Continental Operators's handbook (for the E-225 series),
which shows #1 as rifgt rear, #6 is left front. I doubt that Continental
has changed their numbering system on the O-470 series.

According to my A&P at the time, right front was #1 on my Continental
O-200.

Lycomings have the numbers stamped right in the engine case. Don't
Continentals?
--
Jay Honeck
Iowa City, IA
Pathfinder N56993
www.AlexisParkInn.com
"Your Aviation Destination"

Anthony wrote:
My engine analyzed is telling me that the spark plug on the #6
cylinder, left mag is fouled. I have a new plug, but can't tell which
cylinder #6 is and whether it's the plug on the top or the bottom....
Can anyone tell me which plug it is...?

Thanks much,

Anthony

#6 should be the front most cylinder.
Look at the plug leads mine are labeled T1, B1,T2,B2, etc.
Michelle

"Jay Honeck" wrote in message
news:hvKCf.517589$084.337062@attbi_s22...
I have an old Continental Operators's handbook (for the E-225 series),
which shows #1 as rifgt rear, #6 is left front. I doubt that Continental
has changed their numbering system on the O-470 series.

According to my A&P at the time, right front was #1 on my Continental
O-200.

Lycomings have the numbers stamped right in the engine case. Don't
Continentals?
--
Jay Honeck
Iowa City, IA
Pathfinder N56993
www.AlexisParkInn.com
"Your Aviation Destination"


Yes, they are cast into the case.