[xj] Oil filler cap O-ring

Listers,
Because I noticed a very slight oil leak that appears
to surround my oil fill cap, I purchased the O-ring
part #C42511 from my local dealer. When I pried out
the old ring, it appears to be made of a hard plastic.
The new ring is soft rubber. Is the change in
composition a result of heat and age or do I use the
new ring in addition to the old plastic inset ring?
Many thanks.
Bruce Carson
86 XJ6 Series III
66000 miles__________________________________________________
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===================================================
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Because I noticed a very slight oil leak that appears
to surround my oil fill cap, I purchased the O-ring
part #C42511 from my local dealer. When I pried out
the old ring, it appears to be made of a hard plastic.
The new ring is soft rubber. Is the change in
composition a result of heat and age or do I use the
new ring in addition to the old plastic inset ring?

The hard plastic is what the rubber changes to after 15 years bathed in hot
engine oil. Dig it out and put the new one in.

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

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A neoprene ring from the local plumbing supply works well too.–
Alex
79xj6L SII (BRG + wires)
86xj6 SIII (Black)
61 Sprite MkII (Red)
Menlo Park, Calif.

Craig Sawyers wrote:

Because I noticed a very slight oil leak that appears
to surround my oil fill cap, I purchased the O-ring
part #C42511 from my local dealer. When I pried out
the old ring, it appears to be made of a hard plastic.
The new ring is soft rubber. Is the change in
composition a result of heat and age or do I use the
new ring in addition to the old plastic inset ring?

The hard plastic is what the rubber changes to after 15 years bathed in hot
engine oil. Dig it out and put the new one in.

Craig

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

To remove yourself from this list, go to http://www.jag-lovers.org/cgi-bin/majordomo.