Manifold tubes are plastic?!?

[mk1mark at gmail.com (Mark F.)]

On 4/15/07, julie@menloparkrandd.com <julie@menloparkrandd.com> wrote:
> IIRC brass expands & contracts more than the plastic. Not a good thing when you need a good pressure seal.


Hmmm, I've always considered the brass inserts as "upgrades".  I don't
think the expansion difference would matter between the two materials
as the injector is sealed to the insert with a rubber o-ring that will
more than compensate.  Personally, I always swap the plastic pieces
for brass...

Later,

Mark.
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