Which cylinder is oil-fouled?

Spud Demon wrote:

> (Scott Dorsey) writes in article > dated 17 Apr 2006 20:53:37 -0400:
>
>>Spud Demon > wrote:
>>
>>>Now I've changed the oil and it's at the right level but still running
>>>rough. I think one of the plugs is fouled. Which one?
>>
>>How do you know it's one? How do you know it's not more than one?
>
>
> Because it sounds like this:
> +++++-+++++-+++++-+++++-+++++-+++++-+++++-+++++-+++++-+++++-+++++-+++++-
>
> As opposed to:
>
> +++-+-+++-+-+++-+-+++-+-+++-+-+++-+-+++-+-+++-+-+++-+-+++-+-+++-+-+++-+-
> ++-++-++-++-++-++-++-++-++-++-++-++-++-++-++-++-++-++-++-++-++-++-++-++-
> +--++-+--++-+--++-+--++-+--++-+--++-+--++-+--++-+--++-+--++-+--++-+--++-
> +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-
> +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--
> +-+---+-+---+-+---+-+---+-+---+-+---+-+---+-+---+-+---+-+---+-+---+-+---
> +-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----
> ++++++++++++++++++++++++++++++++++++++++++++++++++ ++++++++++++++++++++++
>
> I suppose it could possibly be this:
>
> ++++--++++--++++--++++--++++--++++--++++--++++--++++--++++--++++--++++--
>
> but I'm betting on the first one.

Well, it's got a nice beat ... an' it's easy to dance to, I give it
about a 63.

;-D

As I said, you are smoking something if you think an incline will cause
oil to run up the piston and into the cylinder. You show absolutely
zero (0) understanding of how an engine operates. And no, they are not
using aluminum tip spark plugs these days, but thanks for the laugh
anyway.
If you are fouling that rear plug, you have something happening on that
cylinder. You could start by checking compression to see what each
cylinder reads. Compression may be OK even with rings that are bad as
the oil helps seal them. There is a slight chance that you have a weak
spark on that cylinder and the plug is gettin gas fouled, but you
should also have a warning light for that code. If the plug gets oil
fouled again, there are a number of temporary fixes that may by lots of
miles yet.
I'm glad you have it perked up for now. Next time you will know right
where to look.

On Wed, 19 Apr 2006 12:40:07 +0000 (UTC), (Spud
Demon) wrote:

>So what do you think happens if you put too much oil in an engine?
>
>I'm sure my vehicle will have more problems someday. Then all you
>nay-sayers (or 1 guy with a few sock puppets?) will be right!

It's a far more serious situation with transmissions than with
sump-fed force-fed Otto engines. SMall gas engines may be more
sensitive, and consume oil, since they tend to be splash-lubricated.

YMMV. ;`>

--
-john
wide-open at throttle dot info