RE: Cap in oil

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "Lau, Gary by way of Terry Fritz <twftesla-at-uswest-dot-net>" <Gary.Lau-at-compaq-dot-com>

I assume you're talking about a rolled poly cap, not an MMC.  There are two
goals.  First is to get the oil to displace all of the air pockets.  It
doesn't care if there is a cover on the container or not.  The second goal
is to keep the oil from spilling on the floor.  So one may be tempted to
fasten the cover in such a way as to make it leakproof.

Beware!  I did this, cementing the PVC endcaps tightly onto the pipe, and
after perhaps 8 minutes of operation, enough heat had been generated that
the oil expanded sufficiently to VIOLENTLY blow open the tightly cemented
PVC endcap.  Lesson 1 is that rolled poly caps always lead to
disappointment.  Lesson 2 is that consideration must be given to allow for
thermal expansion.

Gary Lau
Waltham, MA USA


Original poster: "by way of Terry Fritz <twftesla-at-uswest-dot-net>"
<Leik3-at-aol-dot-com>

Hi All!
Is there any advantage to submerging a cap in an airtight container of oil, 
or would it work the same if it was just in a bucket covered with oil. I can

stick it in a pvc pipe container with the oil in it (thanks for the leads) 
but my cap is about six inches in diameter and the end caps are about ten 
bucks a piece and if I can get around spending the money, I will. 
Thanks,
Dennis