Re: Oil in spark plug well

[Kevin Trent <trentkc@domain.elided>]

It has been my experience that the oil in # 1 spark plug well tends to come 
from the oil filler cap.  In particular, worn engines with piston blowby 
will pressurize the crankcase, and the oil filler cap will not seal well 
with an old hard rubber gasket and becomes an outlet for the pressure, and 
passes a little oil too.  Old engine symptoms.

I've got an engine with bad rings that consumes a lot of oil.  It runs 
fine, but a little down on power, and fills the # 1 spark plug well with 
oil over time.

//kct, Powell, TN


At 08:27 PM 1/5/02 -0500, you wrote:

>Date: Sat, 5 Jan 2002 19:31:32 -0600 (CST)
>From: "Gregory S. Youngblood" <greg@domain.elided>
>Subject: another question about 74 spider
><snip>
>Based on the pictures I've seen, the engine looks as I would expect it to.
>The engine looked clean, however, there appeared to be some oil down in
>the well where the first plug was. Using paper towel I collected some of
>it and it looked like fairly clean oil. The seller indicated that he must
>have spilled some oil when he poured it in. Given the location of the oil
>cap and the plug this certainly seems plausible. Does it seem plausible to
>the rest of you? The car ran smooth at idle and up on the freeway -
>admittedly I didn't push it hard though. Certainly didn't act like a plug
>was fouled, though it the car did have bosche platinum plugs.
>
>Thanks,
>Greg
>
>-

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