[xj] Oily goop in bottom of intake manifold

I removed the intake elbow and concertina from the throttle body of
my car this weekend, to check the butterfly clearance. I also
gently cleaned it up with carb cleaner and a soft cloth. Along the
way I noticed that the bottom of the manifold is filled to about
1/4� depth with a black oily residue.
I can only guess that this is year�s worth of condensed crankcase
oil fumes.
I can hold the butterfly open and carefully dip a screwdriver in
the �oil�, it is liquid.
I tried pulling the small rubber cap off the stub of pipe on the
underside of the manifold, fully prepared for the goop to drip out.
It didn�t.
As far as I can tell the goop isn�t causing any problems. The
engine doesn�t burn oil, and the (recent) compression and leak down
tests all came up good.
Has any one seen this before, and is it a problem?
How do I clean it out?
Thanks.–
Andy Blakey 1983 XJ6 III 4.2 Auto (UK) '‘Jane Seymour’
London, United Kingdom
–Posted using Jag-lovers JagFORUM [forums.jag-lovers.org]–

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Andy, get an old sock, prop the throttle open wide and stuff the sock down in
to soak the stuff up. You can use a cleaner sock with gas or paint thinner
later to clean it nicely. There was so much in our SII, that I had to siphon
first!–
Alex
79xj6L SII (BRG + wires)
86xj6 SIII (Black)
61 Sprite MkII (Red)
Menlo Park, Calif.

AndyBlakey wrote:

I removed the intake elbow and concertina from the throttle body of
my car this weekend, to check the butterfly clearance. I also
gently cleaned it up with carb cleaner and a soft cloth. Along the
way I noticed that the bottom of the manifold is filled to about
1/4� depth with a black oily residue.
I can only guess that this is year�s worth of condensed crankcase
oil fumes.
I can hold the butterfly open and carefully dip a screwdriver in
the �oil�, it is liquid.
I tried pulling the small rubber cap off the stub of pipe on the
underside of the manifold, fully prepared for the goop to drip out.
It didn�t.
As far as I can tell the goop isn�t causing any problems. The
engine doesn�t burn oil, and the (recent) compression and leak down
tests all came up good.
Has any one seen this before, and is it a problem?
How do I clean it out?
Thanks.

===================================================
The archives and FAQ will answer many queries on the XJ series…
FAQs: http://www.jag-lovers.org/xjlovers/xjfaq/index.html
Archives: http://www.jag-lovers.org/lists/search.html

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In reply to a message from AndyBlakey sent Mon 10 May 2004:

It’s entirely normal. But I’m not sure why it’s not draining from
the spigot on the bottom of the intake manifold when you remove the
cap…mine leaves a nasty mess on the driveway if I remove the
cap.–
The original message included these comments:

way I noticed that the bottom of the manifold is filled to about
1/4� depth with a black oily residue.
Has any one seen this before, and is it a problem?


Ted Macklin/'85 XJ6SIII
–Posted using Jag-lovers JagFORUM [forums.jag-lovers.org]–

===================================================
The archives and FAQ will answer many queries on the XJ series…
FAQs: http://www.jag-lovers.org/xjlovers/xjfaq/index.html
Archives: http://www.jag-lovers.org/lists/search.html

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