[s-cars] //S4cylinder, almost again!

[Taka Mizutani]

Jim-
Sorry if I'm somehow stating the obvious, but you've gone through a couple
engines now, right?

Is there something fundamentally wrong with your car? I just wonder if your
software, or something else
is causing all of these issues. Electrical system issue somewhere?

You definitely dodged a bullet- I lost the electrode in our old A4, it went
pinging away into 3 of 4 cylinders,
did quite a bit of damage (one valve seat had to be repaired) and caused the
car to be out of commission for
two weeks to the tune of over $2500.

Refresh my memory- what is your setup? I never lost a plug in my '91 200q,
maybe I'm just lucky, but it was
merely a chipped K24 car, nothing too exotic.

Taka


On 11/17/06, audijim at comcast.net <audijim at comcast.net> wrote:
>
> I almost turned my name back to "Angry Jim" today. On the way home, as
> soon as I started to slow down and down shift for the toll booth heading
> west on the Atlantic City Expressway, I lost a cylinder and it sounded like
> I had a lifter collapse. So I babied it to the rest stop and checked it out.
> It wasn't a fuel injector and I always keep spare POS's in the glove box. I
> swapped them out and it made no joy. So I jumped in the car and drove it
> slow. I made it home and immediately pulled the coil pack cover and started
> pulling plugs. Of course you find the culprit in the last thing you do. I
> started at #5 and made it all the way to #2 with the plugs looking perfect.
> #1 was missing the entire center electrode and the body was very loose from
> the rest of the plug. I fished around the top of the piston for any magnetic
> bits and installed another plug. Now this is the exact same thing that
> happened to the previous owner of my S4 when it was the complete Lehmann
> engine. Except that time it
> was #4 cylinder. Is there another alternative to the Bosch F5DPOR plug? I
> think these plugs work great, but at the price for these things, who needs
> to replace them every few thousand miles? These plugs were brand new and I
> have about 5000 miles on this engine build. I dodged a bullet this time. The
> center electrode disintegrated and after I installed the new plug, a test
> drive confirmed that everything was back to normal.
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