PZL compass question

I see 5Z keft his bubble in!

If the compass gets a big bubble inside can you replace the big bubble
with a little one? If so where do you buy them and are they calibrated for
size and expansion rates?

Are they the same bubbles you get in spirit levels?

K


Ok wher do you buy the bubbles?
Are they calibrated in any way?arted At 02:44 23 August 2008, Darryl Ramm
wrote:
On Aug 22, 7:07=A0pm, 5Z wrote:
On Aug 22, 7:10=A0pm, Darryl Ramm wrote:

It might blow a gasket if filled all the way due to hot temperatures
and no expansion space. If it was altitude related leaving a larger
air bubble would make problems due to pressure differential at
altitude worse not better. Right?

That makes sense, but since I've refilled mine, leaving the air
bubble
in there, it hasn't leaked. =A0Go figure.

-Tom

Tom, I was not disagreeing with your instructions, just the reasons
you gave for doing so. My understanding is the air bubble is critical
for fluid thermal expansion on the PZL since unlike some compasses
they have no form of pressure relief diaphragm etc.

Darryl